Cross-listings
- hep-ph/0512234 [abs, ps, pdf, other] :
-
Title: Constraining Mass Spectra with Sterile Neutrinos from Neutrinoless
Double Beta Decay, Tritium Beta Decay and Cosmology
Authors:
Srubabati Goswami,
Werner Rodejohann
Comments: 40 pages, 9 figures. Minor changes, matches version in PRD
We analyze the constraints on neutrino mass spectra with extra sterile
neutrinos as implied by the LSND experiment. The various mass related
observables in neutrinoless double beta decay, tritium beta decay and cosmology
are discussed. Both neutrino oscillation results as well as recent cosmological
neutrino mass bounds are taken into account. We find that some of the allowed
mass patterns are severely restricted by the current constraints, in particular
by the cosmological constraints on the total sum of neutrino masses and by the
non-maximality of the solar neutrino mixing angle. Furthermore, we estimate the
form of the four neutrino mass matrices and also comment on the situation in
scenarios with two additional sterile neutrinos.
- hep-ph/0603255 [abs, ps, pdf, other] :
-
Title: Identifying the curvaton within MSSM
Authors:
Rouzbeh Allahverdi,
Kari Enqvist,
Asko Jokinen,
Anupam Mazumdar
Comments: 9 pages
We consider inflaton couplings to MSSM flat directions and the thermalization
of the inflaton decay products, taking into account gauge symmetry breaking due
to flat direction condensates. We then search for a suitable curvaton candidate
among the flat directions, requiring an early thermally induced start for the
flat direction oscillations to facilitate the necessary curvaton energy density
dominance. We demonstrate that the supersymmetry breaking $A$-term is crucial
for achieving a successful curvaton scenario. Among the many possible
candidates, we identify the ${\bf u_1dd}$ flat direction as a viable MSSM
curvaton.
- hep-ph/0604196 [abs, ps, pdf, other] :
-
Title: Nonlocality effects on Color Spin Locking condensates
Authors:
D. N. Aguilera,
D. Blaschke,
H. Grigorian,
N. N. Scoccola
Comments: 7 pages, 7 figures, 1 table, revised version, typos removed,
references added
We consider the color spin locking (CSL) phase of two-flavor quark matter at
zero temperature for nonlocal instantaneous, separable interactions. We employ
a Lorentzian-type formfactor allowing a parametric interpolation between the
sharp (Nambu-Jona-Lasinio (NJL) model) and very smooth (e.g. Gaussian) cut-off
models for systematic studies of the influence on the CSL condensate the
deviation from the NJL model entails. This smoothing of the NJL model
formfactor shows advantageous features for the phenomenology of compact stars:
(i) a lowering of the critical chemical potential for the onset of the chiral
phase transition as a prerequisite for stability of hybrid stars with extended
quark matter cores and (ii) a reduction of the smallest pairing gap to the
order of 100 keV, being in the range of values interesting for phenomenological
studies of hybrid star cooling evolution.
Replacements
- astro-ph/0508658 [abs, ps, pdf, other] :
-
Title: Microquasar LS 5039: a TeV gamma-ray emitter and a potential TeV
neutrino source
Authors:
Felix A. Aharonian,
Luis A. Anchordoqui,
Dmitry Khangulyan,
Teresa Montaruli
Comments: To be published in Proceedings of TAUP 2005: The 9th International
Conference on Topics in Astroparticle Physics and Underground Physics, 10-14
September 2005, Zaragoza, Spain; Journal of Physics: Conference Series
Note: replaced with revised version Fri, 19 May 2006 18:30:31 GMT (42kb)
- astro-ph/0512554 [abs, ps, pdf, other] :
-
Title: Dynamical HII Region Evolution in Turbulent Molecular Clouds
Authors:
Garrelt Mellema,
S. Jane Arthur,
William J. Henney,
Ilian T. Iliev,
Paul R. Shapiro
Comments: Minor changes to sync with accepted version. 7 pages, ApJ in press.
Accompanying video available at
this http URL
Note: replaced with revised version Fri, 19 May 2006 18:57:38 GMT (967kb)
- astro-ph/0603102 [abs, ps, pdf, other] :
-
Title: The radio SNR G65.1+0.6 and its associated pulsar J1957+2831
Authors:
W.W. Tian,
D.A. Leahy
Comments: 7pages, 5 pictures and tables, will appear in A&A
Note: replaced with revised version Fri, 19 May 2006 18:24:39 GMT (606kb)
- astro-ph/0604339 [abs, pdf] :
-
Title: Telescope Spectrophotometric and Absolute Flux Calibration, and National
Security Applications, Using a Tunable Laser on a Satellite
Authors:
Justin Albert,
William Burgett,
Jason Rhodes
Comments: 14 pages, 7 figures, added plots with effect on cosmological
parameter measurement for SNAP/JDEM
Note: replaced with revised version Fri, 19 May 2006 16:19:38 GMT (695kb)
- astro-ph/0605467 [abs, ps, pdf, other] :
-
Title: Elementary Physics in the Cellular Automaton Universe
Authors:
Robert L. Kurucz (Harvard-Smithsonian Center for Astrophysics)
Comments: 13 pages, revised voffset, revised page 11
Note: replaced with revised version Fri, 19 May 2006 13:01:20 GMT (13kb)
- gr-qc/0410024 [abs, ps, pdf, other] :
-
Title: Second Order Gauge Invariant Perturbation Theory -- Perturbative
curvatures in the two-parameter case --
Authors:
Kouji Nakamura
Comments: 31 pages, 1 figure, PTPTEX (ptptex.cls ver 0.9);Some typos in the
published version are corrected
Subj-class: General Relativity and Quantum Cosmology; Mathematical Physics
Journal-ref: Prog.Theor.Phys. 113 (2005) 481-511
Note: replaced with revised version Fri, 19 May 2006 05:20:41 GMT (56kb)
- quant-ph/0601129 [abs, ps, pdf, other] :
-
Title: Swapping and permutation operators as entanglement witnesses for quantum
Heisenberg spin-$s$ systems
Authors:
Guang-Ming Zhang,
Xiaoguang Wang
Comments: 8 pages, no figures, accepted by Journal of Physics A: Mathematical
and General
Subj-class: Quantum Physics; Statistical Mechanics
Note: replaced with revised version Fri, 19 May 2006 00:48:20 GMT (13kb)
For subscribe options to combined physics archives,
e-mail To: physics@arXiv.org, Subject: subscribe
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For help on viewing and making submissions, see this http URL
For a list of archive mirror sites, see this http URL
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Third-party submissions cause excessive problems.
Author self-submissions are exceedingly preferred.
E-mail submissions have been discontinued in favor of better support for
Web submissions. See this http URL
Cross-listings
- gr-qc/0605107 [abs, ps, pdf, other] :
-
Title: Gauge-invariant Formulation of the Second-order Cosmological
Perturbations
Authors:
Kouji Nakamura
Comments: 4 pages, no figure. RevTeX
Subj-class: General Relativity and Quantum Cosmology; Mathematical Physics
Gauge invariant treatments of the second order cosmological perturbation in a
four dimensional homogeneous isotropic universe filled with the perfect fluid
are completely formulated without any gauge fixing. We derive all components of
the Einstein equations in the case where the first order vector and tensor
modes are negligible. These equations imply that the tensor and the vector mode
of the second order metric perturbations may be generated by the scalar-scalar
mode coupling of the linear order perturbations as the result of the non-linear
effects of the Einstein equations.
- gr-qc/0605108 [abs, ps, pdf, other] :
-
Title: Second-order Gauge Invariant Cosmological Perturbation Theory; --
Einstein equations in terms of gauge invariant variables --
Authors:
Kouji Nakamura
Comments: 58 pages, no figure. Complete version of gr-qc/0605107
Subj-class: General Relativity and Quantum Cosmology; Mathematical Physics
Along the general framework of the gauge invariant perturbation theory
developed in the papers [K. Nakamura, Prog. Theor. Phys. {\bf 110} (2003), 723;
{\it ibid}, {\bf 113} (2005), 481.], we formulate the second order gauge
invariant cosmological perturbation theory in a four dimensional homogeneous
isotropic universe. We consider the perturbations both in the universe
dominated by the single perfect fluid and in that dominated by the single
scalar field. We derive the all components of the Einstein equations in the
case where the first order vector and tensor modes are negligible. All
equations are derived in terms of gauge invariant variables without any gauge
fixing. These equations imply that the second order vector and tensor modes may
be generated due to the mode-mode coupling of the linear order scalar
perturbations. We also briefly discuss the main progress of this work by the
comparison with some literatures.
- hep-ph/0605120 [abs, ps, pdf, other] :
-
Title: Direct Detection of Supersymmetric Particles in Neutrino Telescopes
Authors:
Ivone F. M. Albuquerque,
Gustavo Burdman,
Z. Chacko
Comments: 11 pages, 9 figures
In supersymmetric theories where the lightest supersymmetric particle is the
gravitino the next to lightest supersymmetric particle is typically a long
lived charged slepton. In this paper, following our earlier proposal, we
perform a detailed study of the production of pairs of these particles induced
by the interactions of high energy cosmic neutrinos with nucleons in the earth,
their propagation through the earth and finally their detection in neutrino
telescopes. We investigate the charged slepton energy loss in detail and
establish that the relatively small cross-section for the production of
supersymmetric particles is partially compensated for by the very long range of
these heavy particles. The signal, consisting of two parallel charged tracks
emerging from the earth, is characterized by a large track separation peaking
at a few hundred meters. We perform a careful analysis of the main background,
coming from direct di-muon production, and show that it can be separated from
the signal due to its characteristically smaller track separation. We conclude
that neutrino telescopes will complement collider searches in the determination
of the supersymmetry breaking scale, and may even provide the first evidence
for supersymmetry at the weak scale.
- hep-ph/0605209 [abs, ps, pdf, other] :
-
Title: On the hadronic contribution to sterile neutrino production
Authors:
Takehiko Asaka,
Mikko Laine,
Mikhail Shaposhnikov
Comments: 28 pages
Sterile neutrinos with masses in the keV range are considered to be a viable
candidate for warm dark matter. The rate of their production through
active-sterile neutrino transitions peaks, however, at temperatures of the
order of the QCD scale, which makes it difficult to estimate their relic
abundance quantitatively, even if the mass of the sterile neutrino and its
mixing angle were known. We derive here a relation, valid to all orders in the
strong coupling constant, which expresses the production rate in terms of the
spectral function associated with active neutrinos. The latter can in turn be
expressed as a certain convolution of the spectral functions related to various
mesonic current-current correlation functions, which are being actively studied
in other physics contexts. In the naive weak coupling limit, the appropriate
Boltzmann equations can be derived from our general formulae.
- hep-th/0605181 [abs, ps, pdf, other] :
-
Title: Dissipative Liouville Cosmology: A Case Study
Authors:
G.A. Diamandis,
B.C. Georgalas,
A.B. Lahanas,
N.E. Mavromatos,
D.V.Nanopoulos
Comments: 19 pages latex, 11 eps figures incorporated
We consider solutions of the cosmological equations pertaining to a
dissipative, dilaton-driven off-equilibrium Liouville Cosmological model, which
may describe the effective field theoretic limit of a non-critical string model
of the Universe. The non-criticality may be the result of an early-era
catastrophic cosmic event, such as a big-bang, brane-world collision etc. The
evolution of the various cosmological parameters of the model are obtained, and
the effects of the dilaton and off-shell Liouville terms, including briefly
those on relic densities, which distinguish the model from conventional
cosmologies, are emphasised.
- nucl-ex/0605024 [abs, ps, pdf, other] :
-
Title: Astrophysical factor for the neutron generator 13C(alpha,n)16O reaction
in the AGB stars
Authors:
E.D. Johnson,
G.V. Rogachev,
A.M. Mukhamedzhanov,
L.T. Baby,
S. Brown,
W.T. Cluff,
A.M. Crisp,
E. Diffenderfer,
V.Z. Goldberg,
B.W. Green,
T. Hinners,
C.R. Hoffman,
K.W. Kemper,
O. Momotyuk,
P. Peplowski,
A. Pipidis,
R. Reynolds,
B.T. Roeder
Comments: 4 pages, 4 figures
The reaction 13C(alpha,n) is considered to be the main source of neutrons for
the s-process in AGB stars. At low energies the cross section is dominated by
the 1/2+ 6.356 MeV sub-threshold resonance in 17O whose contribution is
determined with a very large uncertainty of ~1000% at stellar temperatures. In
this work we performed the most precise determination of the low-energy
astrophysical S factor using the indirect asymptotic normalization (ANC)
technique. The alpha-particle ANC for the sub-threshold state has been measured
using the sub-Coulomb alpha-transfer reaction (6Li,d). Using the determined ANC
we calculated S(0), which turns out to be an order of magnitude smaller than in
the NACRE compilation.
Replacements
- astro-ph/0506639 [abs, ps, pdf, other] :
-
Title: Making the corona and the fast solar wind: a self-consistent simulation
for the low-frequency Alfven waves from photosphere to 0.3AU
Authors:
Takeru K. Suzuki,
Shu-ichiro Inutsuka (Kyoto University)
Comments: 4 pages, 3 figures, ApJL, 632, L49, corrections of mistypes in
eqs.(3) & (5), Mpeg movie for fig.1 (simulation result) is available at
this http URL
Journal-ref: Astrophys.J. 632 (2005) L49-L52
Note: replaced with revised version Mon, 22 May 2006 04:37:05 GMT (147kb)
- astro-ph/0508568 [abs, ps, pdf, other] :
-
Title: Successful Coronal Heating and Solar Wind Acceleration by MHD Waves by
Numerical Simulations from Photosphere to 0.3AU
Authors:
Takeru K. Suzuki,
Shu-ichiro Inutsuka (Kyoto Univ.)
Comments: 6 paged, 4 figures embedded, corrections of mistypes in eqs.(3) &
(5); Contribution talk at Solar Wind 11/SOHO 16, Whistler, BC, Canada, June
12-17, 2005 movie file is available at
this http URL
Note: replaced with revised version Mon, 22 May 2006 04:59:13 GMT (440kb)
- astro-ph/0511035 [abs, ps, pdf, other] :
-
Title: Hydrodynamics of Cometary Compact HII Regions
Authors:
S. J. Arthur,
M. G. Hoare
Comments: Astrophysical Journal Supplement Series in press. 25 pages in emulate
ApJ style. Revised to correspond to accepted paper
Note: replaced with revised version Sun, 21 May 2006 03:38:21 GMT (881kb)
- astro-ph/0602375 [abs, ps, pdf, other] :
-
Title: Observational constraints on Cosmic Reionization
Authors:
Xiaohui Fan (Steward Observatory),
C.L. Carilli (NRAO),
B. Keating (UCSD)
Comments: to appear in ARAA 2006, vol 44, page 415-462; latex. 84 pages. 15 fig
Note: replaced with revised version Mon, 22 May 2006 13:20:26 GMT (910kb)
- astro-ph/0603377 [abs, ps, pdf, other] :
-
Title: Early-Time Photometry and Spectroscopy of the Fast Evolving SN 2006AJ
Associated with GRB 060218
Authors:
M. Modjaz (1),
K.Z. Stanek (2),
P. M. Garnavich (3),
P. Berlind (4),
S. Blondin (1),
W. Brown (1),
M. Calkins (4),
P. Challis (1),
A. M. Diamond-Stanic (5),
H. Hao (1),
M. Hicken (1),
R. P. Kirshner (1),
J. L. Prieto (2) ((1) CfA, (2) Ohio State, (3) Notre-Dame, (4) FLWO, (5) Steward Observatory, UoA)
Comments: 7 pages using emulateapj, 3 figures, accepted by ApJL, minor changes
compared to v1
Note: replaced with revised version Sat, 20 May 2006 02:28:46 GMT (103kb)
- astro-ph/0603686 [abs, ps, pdf, other] :
-
Title: GRB 060218/SN 2006aj: A Gamma-Ray Burst and Prompt Supernova at z=0.0335
Authors:
N. Mirabal,
J. P. Halpern,
D. An,
J. R. Thorstensen,
D. M. Terndrup
Comments: 5 pages, 2 figures
Journal-ref: Astrophys.J. 643 (2006) L99-L102
Note: replaced with revised version Mon, 22 May 2006 19:23:26 GMT (31kb)
- astro-ph/0604298 [abs, ps, pdf, other] :
-
Title: The Non-Gaussianity of Racetrack Inflation Models
Authors:
Cheng-Yi Sun,
De-Hai Zhang
Comments: 8 pages, no figures; PACS and Keywords are added; mistake is
corrected
Note: replaced with revised version Mon, 22 May 2006 12:37:18 GMT (6kb)
- astro-ph/0604348 [abs, ps, pdf, other] :
-
Title: The N2K Consortium VI: Doppler Shifts Without Templates and Three New
Short-Period Planets
Authors:
John A. Johnson,
Geoffrey W. Marcy,
Debra A. Fischer,
Gregory Laughlin,
R. Paul Butler,
Gregory W. Henry,
Jeff A. Valenti,
Eric B. Ford,
Steven S. Vogt,
Jason T. Wright
Comments: 39 pages, 12 figures, 8 tables (ApJ Accepted)
Note: replaced with revised version Mon, 22 May 2006 05:02:41 GMT (144kb)
- astro-ph/0604515 [abs, ps, pdf, other] :
-
Title: On the Putative Detection of z>0 X-ray Absorption Features in the
Spectrum of Markarian 421
Authors:
Andrew P. Rasmussen,
Steven M. Kahn,
Frits Paerels,
Jan Willem den Herder,
Jelle Kaastra,
Cor de Vries
Comments: 19 pages/7 figures/4 tables. 060424 submitted to ApJ 060522
re-submitted following ApJ request
Note: replaced with revised version Mon, 22 May 2006 19:25:20 GMT (76kb)
- astro-ph/0604535 [abs, ps, pdf, other] :
-
Title: Cosmic-Ray proton spectrum below 100 TeV in the local region
Authors:
Thoudam Satyendra
Comments: 8 pages, 6 figures, 1 table, uses mn2e.cls, minor text corrections,
accepted for publication in MNRAS
Note: replaced with revised version Mon, 22 May 2006 06:05:05 GMT (40kb)
- astro-ph/0605009 [abs, ps, pdf, other] :
-
Title: The galaxy cluster X-ray luminosity--gravitational mass relation in the
light of the WMAP 3rd year data
Authors:
Thomas H. Reiprich (AIfA)
Comments: 4 pages; A&A Letters, in press; replaced to match accepted version;
also available at this http URL
Note: replaced with revised version Mon, 22 May 2006 09:23:49 GMT (51kb)
- astro-ph/0605116 [abs, ps, pdf, other] :
-
Title: Line formation in solar granulation VII. CO lines and the solar C and O
isotopic abundances
Authors:
Patrick C. Scott,
Martin Asplund,
Nicolas Grevesse,
A. Jacques Sauval
Comments: Accepted for Astronomy & Astrophysics; 20 pages, 8 figures. v2:
Updated citations upon request
Note: replaced with revised version Mon, 22 May 2006 13:02:11 GMT (289kb)
- astro-ph/0605148 [abs, ps, pdf, other] :
-
Title: The Type Ia Supernova Rate at z ~0.5 from the Supernova Legacy Survey
Authors:
J. D. Neill,
M. Sullivan,
D. Balam,
C. J. Pritchet,
D. A. Howell,
K. Perrett,
P. Astier,
E. Aubourg,
S. Basa,
R. G. Carlberg,
A. Conley,
S. Fabbro,
D. Fouchez,
J. Guy,
I. Hook,
R. Pain,
N. Palanque-Delabrouille,
N. Regnault,
J. Rich,
R. Taillet,
G. Aldering,
P. Antilogus,
C. Balland,
S. Baumont,
J. Bronder,
R. S. Ellis,
M. Filiol,
A. Goncalves,
M. Kowalski,
C. Lidman,
V. Lusset,
M. Mouchet,
S. Perlmutter,
P. Ripoche,
D. Schlegel,
C. Tao
Comments: 71 pages, 12 figures, accepted for publication in AJ, more updated
refs, and more authors
Note: replaced with revised version Fri, 19 May 2006 21:40:18 GMT (383kb)
- astro-ph/0605195 [abs, ps, pdf, other] :
-
Title: The Possibility of Cosmic Acceleration via Spatial Averaging in
Lemaitre-Tolman-Bondi Models
Authors:
Aseem Paranjape,
T. P. Singh (TIFR, Mumbai)
Comments: 15 pages, 5 figures; (v2) figures 2 and 3 corrected, references
added, main conclusions remain unchanged
Note: replaced with revised version Mon, 22 May 2006 04:02:00 GMT (183kb)
- astro-ph/0605208 [abs, ps, pdf, other] :
-
Title: Gamma-Ray Bursts
Authors:
P. Meszaros
Comments: To appear in Rep. Prog. Phys., 74 pages, 11 figures, uses iopart.cls
macros; revisions and updated references
Note: replaced with revised version Sat, 20 May 2006 18:23:38 GMT (347kb)
- astro-ph/0605274 [abs, ps, pdf, other] :
-
Title: Stability of Magnetic Equilibria in Radio Balloons
Authors:
Gregory Benford
Comments: 2 figures
Journal-ref: Mon. Not. R. Astron. Soc. (2006) 1365-2966
Note: replaced with revised version Fri, 19 May 2006 22:44:24 GMT (307kb)
- astro-ph/0605369 [abs, ps, pdf, other] :
-
Title: Detecting dark matter in electromagnetic field penetration experiments
Authors:
Saibal Mitra
Comments: 9 pages
Note: replaced with revised version Sat, 20 May 2006 00:23:28 GMT (26kb)
- astro-ph/0605440 [abs, ps, pdf, other] :
-
Title: Effects of primordial helicity on CMB
Authors:
Tina Kahniashvili (1,2) ((1)Kansas State University (USA), (2) Center for Plasma Astrophysics (Georgia))
Comments: for Proceedings of CMB Workshop at Irvine, March 2006; references
added
Note: replaced with revised version Sun, 21 May 2006 08:27:16 GMT (38kb)
- gr-qc/0605088 [abs, ps, pdf, other] :
-
Title: Inhomogeneous spacetimes as a dark energy model
Authors:
David Garfinkle
Comments: 9 pages, 6 figures, Added References
Note: replaced with revised version Mon, 22 May 2006 12:01:50 GMT (14kb)
- hep-ph/0604063 [abs, ps, pdf, other] :
-
Title: Leptogenesis in a model of Dark Energy and Dark Matter
Authors:
P. Q. Hung
Comments: 10 double-column pages, 3 figures. Added comments and
acknowledgement, change of Figure 3. Corrected typos
Note: replaced with revised version Sun, 21 May 2006 20:39:27 GMT (43kb)
For subscribe options to combined physics archives,
e-mail To: physics@arXiv.org, Subject: subscribe
-----------------------------------------------------------------------------
For help on viewing and making submissions, see this http URL
For a list of archive mirror sites, see this http URL
-----------------------------------------------------------------------------
Third-party submissions cause excessive problems.
Author self-submissions are exceedingly preferred.
E-mail submissions have been discontinued in favor of better support for
Web submissions. See this http URL
Cross-listings
- gr-qc/0605113 [abs, ps, pdf, other] :
-
Title: Avoidance of future singularities in loop quantum cosmology
Authors:
M. Sami,
Parampreet Singh,
Shinji Tsujikawa
Comments: 6 pages, 2 figures
We consider the fate of future singularities in the effective dynamics of
loop quantum cosmology. Non-perturbative quantum geometric effects which lead
to $\rho^2$ modification of the Friedmann equation at high energies result in
generic resolution of singularities whenever energy density $\rho$ diverges at
future singularities of Friedmann dynamics. Such quantum effects lead to the
avoidance of a Big Rip, which is followed by a recollapsing universe stable
against perturbations. Resolution of sudden singularity, the case when pressure
diverges but energy density approaches a finite value depends on the ratio of
the latter to a critical energy density of the order of Planck. If the value of
this ratio is greater than unity, the universe escapes the sudden future
singularity and becomes oscillatory.
- gr-qc/0605116 [abs, ps, pdf, other] :
-
Title: Geometrodynamics in a spherically symmetric, static crossflow of null
dust
Authors:
Zsolt Horváth,
Zoltán Kovács,
László Á. Gergely
Comments: 10 pages
The spherically symmetric, static spacetime generated by a crossflow of
non-interacting radiation streams, treated in the geometrical optics limit
(null dust) is equivalent to an anisotropic fluid forming a stellar atmosphere.
This reference fluid provides a preferred / internal time, which is employed as
a canonical coordinate. Among the advantages we encounter a new Hamiltonian
constraint, which becomes linear in the momentum conjugate to the internal time
(therefore yielding a functional Schr\"{o}dinger equation after quantization),
and a strongly commuting algebra of the new constraints.
- hep-ph/0605218 [abs, ps, pdf, other] :
-
Title: Testing the Unitarity of the CKM Matrix with a Space-Based Neutron Decay
Experiment
Authors:
Michael Martin Nieto,
William C. Feldman,
David J. Lawrence
Comments: 10 pages, 4 figures
If the Standard Model is correct, and fundamental fermions exist only in the
three generations, then the CKM matrix should be unitary. However, there remain
questions over 2+ standard deviations from unitarity in the various data sets,
in part from the value of the neutron lifetime. We discuss a simple space-based
experiment that, at an orbit height of 500 km above Earth, would measure the
kinetic-energy, solid-angle, flux spectrum of gravitationally bound neutrons
(kinetic energy K<0.606 eV at this altitude). The difference between the energy
spectrum of neutrons that come up from the Earth's atmosphere and that of the
undecayed neutrons that return back down to the Earth would yield a measurement
of the neutron lifetime. This measurement would be free of the systematics of
laboratory experiments. A package of mass <25 kg could provide a 10^{-3}
precision in two years.
- hep-ph/0605219 [abs, ps, pdf, other] :
-
Title: Neutrino Telescopes as a Probe of Broken $\mu$-$\tau$ Symmetry
Authors:
Zhi-zhong Xing
Comments: 10 pages, 1 figure
It is known that neutrino oscillations may map $\phi_e : \phi_\mu : \phi_\tau
= 1 : 2 : 0$, the initial flavor ratios of ultrahigh-energy neutrino fluxes
produced from a distant astrophysical source, into $\phi^D_e : \phi^D_\mu :
\phi^D_\tau = 1 : 1 : 1$ at the detector of a neutrino telescope. We remark
that this naive expectation is only valid in the $\mu$-$\tau$ symmetry limit,
in which two neutrino mixing angles satisfy $\theta_{13} = 0$ and $\theta_{23}
= \pi/4$. Allowing for the slight breaking of $\mu$-$\tau$ symmetry, we find
$\phi^D_e : \phi^D_\mu : \phi^D_\tau = (1 -2 \Delta) : (1 +\Delta) : (1
+\Delta)$ with $\Delta$ characterizing the combined effect of $\theta_{13} \neq
0$ and $\theta_{23} \neq \pi/4$. Current neutrino oscillation data indicate
$-0.1 \lesssim \Delta \lesssim +0.1$. We also look at the possibility to probe
$\Delta$ by detecting the $\bar{\nu}_e$ flux of $E_{\bar{\nu}_e} \approx 6.3
{\rm PeV}$ via the Glashow resonance channel $\bar{\nu}_e e \to W^- \to
anything$.
Replacements
- astro-ph/0506308 [abs, ps, pdf, other] :
-
Title: Fast directional continuous spherical wavelet transform algorithms
Authors:
J. D. McEwen,
M. P. Hobson,
D. J. Mortlock,
A. N. Lasenby
Comments: 10 pages, 3 figures, replaced to match version accepted by IEEE
Trans. Sig. Proc
Note: replaced with revised version Tue, 23 May 2006 17:47:08 GMT (937kb)
- astro-ph/0508349 [abs, ps, pdf, other] :
-
Title: An indirect dark matter search with diffuse gamma rays from the Galactic
Centre with the Alpha Magnetic Spectrometer
Authors:
A.Jacholkowska,
G.Lamanna,
E.Nuss,
J.Bolmont,
C.Adloff,
J.Alcaraz,
R.Battiston,
P.Brun,
W.J.Burger,
V.Choutko,
G.Coignet,
A.Falvard,
E.Flandrini,
L.Girard,
C.Goy,
K.Jedamzik,
R.Kossakowski,
G.Moultaka,
S.Natale,
J.Pochon,
M.Pohl,
S.Rosier-Lees,
M.Sapinski,
I.Sevilla Noarbe,
JP.Vialle
Comments: 15 pages, 7 figures
Note: replaced with revised version Tue, 23 May 2006 10:35:03 GMT (204kb)
- astro-ph/0509006 [abs, ps, pdf, other] :
-
Title: INTEGRAL and RXTE monitoring of GRS 1758-258 in 2003 and 2004. A
transition from the dim soft state to the hard state
Authors:
K. Pottschmidt (1),
M. Chernyakova (2),
A. A. Zdziarski (3),
P. Lubinski (3,2),
D. M. Smith (4),
N. Bezayiff (4) ((1) CASS - UC San Diego, (2) ISDC, (3) Nicolaus Copernicus Astronomical Center, (4) UC Santa Cruz)
Comments: Replaced to match accepted version
Journal-ref: Astronomy & Astrophysics 452 (2006) 285-294
Note: replaced with revised version Tue, 23 May 2006 18:22:47 GMT (81kb)
- astro-ph/0509758 [abs, ps, pdf, other] :
-
Title: The Rates of type I X-ray Bursts from Transients Observed with RXTE:
Evidence for Black Hole Event Horizons
Authors:
Ronald A. Remillard (1),
Dacheng Lin (1),
Randall L.Cooper (2),
Ramesh Narayan (2) ((1) MIT Kavli Institute for Astrophysics and Space Research, and (2) Harvard-Smithsonian Center for Astrophysics)
Comments: 21 pages, 9 figures, ApJ, in press for vol. 646
Note: replaced with revised version Mon, 22 May 2006 22:23:47 GMT (163kb)
- astro-ph/0602118 [abs, ps, pdf, other] :
-
Title: Dissipative or Conservative cosmology with dark energy ?
Authors:
Marek Szydlowski,
Orest Hrycyna
Comments: RevTeX4, 23 pages, 12 figures; new part on general properties of
dissipative FRW models (v.2)
Note: replaced with revised version Tue, 23 May 2006 14:40:46 GMT (287kb)
- astro-ph/0604457 [abs, ps, pdf, other] :
-
Title: Coincidence Problem in YM Field Dark Energy Model
Authors:
Wen Zhao,
Yang Zhang
Comments: 8 pages, 4 figures. submit to PLB
Note: replaced with revised version Tue, 23 May 2006 00:41:09 GMT (89kb)
- astro-ph/0604458 [abs, ps, pdf, other] :
-
Title: Relic Gravitational Waves and the Detection
Authors:
Wen Zhao,
Yang Zhang
Comments: 20 pages, 3 figures
Note: replaced with revised version Tue, 23 May 2006 00:49:22 GMT (139kb)
- astro-ph/0604460 [abs, ps, pdf, other] :
-
Title: The Quintom Models With State Equation Crossing -1
Authors:
Wen Zhao
Comments: 18 pages, 8 figures
Note: replaced with revised version Tue, 23 May 2006 00:22:11 GMT (153kb)
- astro-ph/0605327 [abs, ps, pdf, other] :
-
Title: Cosmogenic Neutrinos from the propagation of Ultra High Energy Nuclei
Authors:
D. Allard,
M. Ave,
N. Busca,
M. A. Malkan,
A. V. Olinto,
E. Parizot,
F. W. Stecker,
T. Yamamoto
Comments: 20 pages, 11 figures submitted to JCAP 3 references added
Note: replaced with revised version Mon, 22 May 2006 20:21:09 GMT (824kb)
- astro-ph/0605460 [abs, ps, pdf, other] :
-
Title: Deep spectroscopy of 9C J1503+4528: a very young CSS radio source at
z=0.521
Authors:
K.J. Inskip,
D. Lee,
Garret Cotter,
T.J. Pearson,
A.C.S. Readhead,
R.C. Bolton,
C. Chandler,
G. Pooley,
J.M. Riley,
E.M. Waldram
Comments: Accepted for publication in MNRAS. 13 pages, 13 figures (3 in
colour), 2 tables. Replacement corrects some minor typos
Note: replaced with revised version Tue, 23 May 2006 11:15:43 GMT (433kb)
- astro-ph/0605542 [abs, ps, pdf, other] :
-
Title: The Structure of Rapidly Rotating Late-Type Spirals: I. Photometry, HI
and Optical Kinematics
Authors:
K. Spekkens,
R. Giovanelli
Comments: 26 pages, 15 figures, accepted for publication in the Astronomical
Journal. For version with high resolution figures, see
this http URL
Note: replaced with revised version Tue, 23 May 2006 14:15:11 GMT (395kb)
- hep-th/0605105 [abs, ps, pdf, other] :
-
Title: Why there is something so close to nothing: towards a fundamental theory
of the cosmological constant
Authors:
Vishnu Jejjala,
Djordje Minic
Comments: 19 pages, LaTeX; v.2: references added
Note: replaced with revised version Tue, 23 May 2006 19:21:23 GMT (20kb)
For subscribe options to combined physics archives,
e-mail To: physics@arXiv.org, Subject: subscribe
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For help on viewing and making submissions, see this http URL
For a list of archive mirror sites, see this http URL
-----------------------------------------------------------------------------
Third-party submissions cause excessive problems.
Author self-submissions are exceedingly preferred.
E-mail submissions have been discontinued in favor of better support for
Web submissions. See this http URL
Cross-listings
- gr-qc/0605118 [abs, ps, pdf, other] :
-
Title: Quasinormal ringing of Kerr black holes. I. The excitation factors
Authors:
Emanuele Berti,
Vitor Cardoso
Comments: 31 pages, 7 figures, 7 tables, RevTeX4
Subj-class: General Relativity and Quantum Cosmology; Space Physics
Distorted black holes radiate gravitational waves. In the so-called ringdown
phase radiation is emitted in a discrete set of complex quasinormal
frequencies, whose values depend only on the black hole's mass and angular
momentum. Ringdown radiation could be detectable with large signal-to-noise
ratio by the Laser Interferometer Space Antenna LISA. If more than one mode is
detected, tests of the black hole nature of the source become possible. The
detectability of different modes depends on their relative excitation, which in
turn depends on the cause of the perturbation (i.e. on the initial data). A
``universal'', initial data-independent measure of the relative mode excitation
is encoded in the poles of the Green's function that propagates small
perturbations of the geometry (``excitation factors''). We compute for the
first time the excitation factors for general-spin perturbations of Kerr black
holes. We find that for corotating modes with $l=m$ the excitation factors tend
to zero in the extremal limit, and that the contribution of the overtones
should be more significant when the black hole is fast rotating. We also
present the first analytical calculation of the large-damping asymptotics of
the excitation factors for static black holes, including the Schwarzschild and
Reissner-Nordstrom metrics. This is an important step to determine the
convergence properties of the quasinormal mode expansion.
- hep-ph/0605243 [abs, ps, pdf, other] :
-
Title: Big Bang Nucleosynthesis with Long Lived Charged Massive Particles
Authors:
Kazunori Kohri,
Fumihiro Takayama
Comments: 19 pages, 6 figures
We consider Big Bang Nucleosynthesis (BBN) with long lived charged massive
particles. Before decaying, the long lived charged particle recombines with a
light element to form a bound state like a hydrogen atom. This effect modifies
the nuclear reaction rates during the BBN epoch through the modifications of
the Coulomb field and the kinematics of the captured light elements, which can
change the light element abundances. It is possible that the heavier nuclei
abundances such as $^7$Li and $^7$Be decrease sizably, while the ratios $Y_p$,
D/H, and $^3$He/H remain unchanged. This may solve the current discrepancy
between the BBN prediction and the observed abundance of $^7$Li. If future
collider experiments found signals of a long-lived charged particle inside the
detector, the information of its lifetime and decay properties could provide
insights to understand not only the particle physics models but also the
phenomena in the early universe in turn.
- hep-th/0605189 [abs, ps, pdf, other] :
-
Title: DBI Inflation in the Tip Region of a Warped Throat
Authors:
Steven Kecskemeti,
John Maiden,
Gary Shiu,
Bret Underwood
Comments: 26 pages, 1 figure
Previous work on DBI inflation, which achieves inflation through the motion
of a D3 brane as it moves through a warped throat compactification, has focused
on the region far from the tip of the throat. Matching results to measured
cosmological observables leads us to consider inflation ending near the tip of
the warped throat, where the geometry is nearly constant. We find that one can
obtain 60 or more e-folds in the tip region, however large non-gaussianities
are typically produced due to the small sound speed of fluctuations. For a
particular well-studied throat, the Klebanov-Strassler solution, we find that
for inflation near the tip it is difficult to satisfy current bounds on
non-gaussianity, but other throat solutions may evade these difficulties.
- hep-th/0605206 [abs, ps, pdf, other] :
-
Title: Axions In String Theory
Authors:
Peter Svrcek,
Edward Witten
Comments: 62 pages
In the context of string theory, axions appear to provide the most plausible
solution of the strong CP problem. However, as has been known for a long time,
in many string-based models, the axion coupling parameter F_a is several orders
of magnitude higher than the standard cosmological bounds. We re-examine this
problem in a variety of models, showing that F_a is close to the GUT scale or
above in many models that have GUT-like phenomenology, as well as some that do
not. On the other hand, in some models with Standard Model gauge fields
supported on vanishing cycles, it is possible for F_a to be well below the GUT
scale.
- hep-th/0605229 [abs, ps, pdf, other] :
-
Title: Quantum phantom cosmology
Authors:
Mariusz P. Dabrowski,
Claus Kiefer,
Barbara Sandhoefer
Comments: 21 pages, 6 figures
We apply the formalism of quantum cosmology to models containing a phantom
field. Three models are discussed explicitly: a toy model, a model with an
exponential phantom potential, and a model with phantom field accompanied by a
negative cosmological constant. In all these cases we calculate the classical
trajectories in configuration space and give solutions to the Wheeler-DeWitt
equation in quantum cosmology. In the cases of the toy model and the model with
exponential potential we are able to solve the Wheeler-DeWitt equation exactly.
For comparison, we also give the corresponding solutions for an ordinary scalar
field. We discuss in particular the behaviour of wave packets in
minisuperspace. For the phantom field these packets disperse in the region that
corresponds to the Big Rip singularity. This thus constitutes a genuine quantum
region at large scales, described by a regular solution of the Wheeler-DeWitt
equation. For the ordinary scalar field, the Big-Bang singularity is avoided.
Some remarks on the arrow of time in phantom models as well as on the relation
of phantom models to loop quantum cosmology are given.
Replacements
- astro-ph/0511237 [abs, ps, pdf, other] :
-
Title: V0332+53 in the outburst of 2004--2005: luminosity dependence of the
cyclotron line and pulse profile
Authors:
S. S. Tsygankov (1,2),
A. A. Lutovinov (1,2),
E. M. Churazov (1,2),
R. A. Sunyaev (1,2) (1 - Space Research Institute (Moscow, Russia); 2 - Max-Plank Institute for Astrophysics (Garching, Germany))
Comments: Accepted for publication in MNRAS. 10 pages, 9 figures
Note: replaced with revised version Wed, 24 May 2006 06:49:16 GMT (674kb)
- astro-ph/0511837 [abs, ps, pdf, other] :
-
Title: New Constraints on Additional Satellites of the Pluto System
Authors:
A.J. Steffl,
M.J. Mutchler,
H.A. Weaver,
S.A.Stern,
D.D. Durda,
D. Terrell,
W.J. Merline,
L.A. Young,
E.F. Young,
M.W. Buie,
J.R. Spencer
Comments: Accepted by the Astronomical Journal 17 pages including 4 figures
Note: replaced with revised version Tue, 23 May 2006 20:59:25 GMT (263kb)
- astro-ph/0601513 [abs, ps, pdf, other] :
-
Title: The non-perturbative regime of cosmic structure formation
Authors:
Thomas Buchert
Comments: 9 pages; matches published version in Astron. Astrophys
Note: replaced with revised version Wed, 24 May 2006 15:53:57 GMT (19kb)
- astro-ph/0603354 [abs, ps, pdf, other] :
-
Title: High-resolution mapping of interstellar clouds with near-infrared
scattered light
Authors:
M. Juvela (1),
V.-M. Pelkonen (1),
P. Padoan (2),
K. Mattila (1) ((1) Helsinki University Observatory, (2) CASS/UCSD)
Comments: 20 pages, submitted to A&A; this version contains some structural
changes and one new figure
Note: replaced with revised version Wed, 24 May 2006 12:43:10 GMT (807kb)
- astro-ph/0603685 [abs, ps, pdf, other] :
-
Title: Flaring Activity of Sgr A* at 43 and 22 GHz: Evidence for Expanding Hot
Plasma
Authors:
F. Yusef-Zadeh,
D. Roberts,
M. Wardle,
C. O. Heinke,
G. C. Bower
Comments: Revised with new Figures 1 and 2, 17 pages, 4 figures, ApJ (in press)
Note: replaced with revised version Wed, 24 May 2006 14:51:10 GMT (68kb)
- astro-ph/0603757 [abs, ps, pdf, other] :
-
Title: Population synthesis of s-process element enhanced stars: Constraining
the 13C efficiency
Authors:
A. Bonacic Marinovic,
R.G. Izzard,
M. Lugaro,
O.R. Pols
Comments: 6 pages, 3 figures, 1 .cls file (mem.cls) Proceeding of the 8th
Torino Workshop in Granada, February, 2006
Note: replaced with revised version Wed, 24 May 2006 13:34:43 GMT (243kb)
- astro-ph/0604113 [abs, ps, pdf, other] :
-
Title: Protecting Life in the Milky Way: Metals Keep the GRBs Away
Authors:
K. Z. Stanek,
O. Y. Gnedin,
J. F. Beacom,
A. P. Gould,
J. A. Johnson,
J. A. Kollmeier,
M. Modjaz,
M. H. Pinsonneault,
R. Pogge,
D. H. Weinberg
Comments: ApJ, resubmitted, 16 pages, 3 figures; fifth low-z GRB added
Note: replaced with revised version Wed, 24 May 2006 19:39:32 GMT (312kb)
- astro-ph/0604460 [abs, ps, pdf, other] :
-
Title: The Quintom Models with State Equation Crossing -1
Authors:
Wen Zhao,
Yang Zhang
Comments: 28 pages, 8 figures. PRD accepted
Note: replaced with revised version Wed, 24 May 2006 01:04:07 GMT (153kb)
- astro-ph/0604483 [abs, ps, pdf, other] :
-
Title: Heating and cooling of the intergalactic medium by resonance photons
Authors:
Leonid Chuzhoy,
Paul R. Shapiro
Comments: 4 pages, 4 figures, submitted to ApJL, minor changes
Note: replaced with revised version Tue, 23 May 2006 20:45:22 GMT (16kb)
- astro-ph/0605442 [abs, ps, pdf, other] :
-
Title: Noncommutative KKLMMT Model
Authors:
Qing-Guo Huang
Comments: 9 pages, 2 figures; references added and minor corrections
Note: replaced with revised version Wed, 24 May 2006 07:47:08 GMT (21kb)
- astro-ph/0605511 [abs, ps, pdf, other] :
-
Title: Recognizing the First Radiation Sources Through Their 21-cm Signature
Authors:
Leonid Chuzhoy,
Marcelo A. Alvarez,
Paul R. Shapiro
Comments: 4 pages, submitted to ApJL, edited for length
Note: replaced with revised version Wed, 24 May 2006 19:27:43 GMT (20kb)
- gr-qc/0403068 [abs, ps, pdf, other] :
-
Title: Parametrized Post-Newtonian Theory of Reference Frames, Multipolar
Expansions and Equations of Motion in the N-body Problem
Authors:
Sergei Kopeikin,
Igor Vlasov (University of Missouri-Columbia, USA)
Comments: 121 pages, 5 figures, references added, improvements made in response
to referee's report
Subj-class: General Relativity and Quantum Cosmology; Mathematical Physics
Journal-ref: Phys.Rept. 400 (2004) 209-318
Note: replaced with revised version Wed, 24 May 2006 16:41:20 GMT (116kb)
- gr-qc/0604032 [abs, ps, pdf, other] :
-
Title: Binary black hole detection rates in inspiral gravitational wave
searches
Authors:
Chris Van Den Broeck
Comments: 9 pages, 1 figure
Note: replaced with revised version Wed, 24 May 2006 12:34:28 GMT (16kb)
- hep-ph/0604245 [abs, ps, pdf, other] :
-
Title: Supergravity Modification of D-term Hybrid Inflation: Solving the Cosmic
String and Spectral Index Problems via a Right-Handed Sneutrino
Authors:
Chia-Min Lin,
John McDonald
Comments: 14 pages LaTeX, 2 eps figures
Note: replaced with revised version Wed, 24 May 2006 16:51:32 GMT (300kb)
- hep-th/0512262 [abs, ps, pdf, other] :
-
Title: Towards inflation and dark energy cosmologies from modified Gauss-Bonnet
theory
Authors:
Ishwaree P Neupane,
Benedict M N Carter
Comments: 35 pages, 21 eps figs; section 6 expanded improving explanations,
refs added, final in JCAP
Note: replaced with revised version Wed, 24 May 2006 07:12:38 GMT (981kb)
- hep-th/0603129 [abs, ps, pdf, other] :
-
Title: Inflating in a Better Racetrack
Authors:
J.J. Blanco-Pillado,
C.P. Burgess,
J.M. Cline,
C. Escoda,
M. Gomez-Reino,
R. Kallosh,
A. Linde,
F. Quevedo
Comments: 20 pages, 7 figures. Brief discussion on the non-gaussianity of this
model, one more figure of the field trajectories added as well as other minor
changes to the text
Note: replaced with revised version Tue, 23 May 2006 20:33:27 GMT (209kb)
For subscribe options to combined physics archives,
e-mail To: physics@arXiv.org, Subject: subscribe
-----------------------------------------------------------------------------
For help on viewing and making submissions, see this http URL
For a list of archive mirror sites, see this http URL
-----------------------------------------------------------------------------
Third-party submissions cause excessive problems.
Author self-submissions are exceedingly preferred.
E-mail submissions have been discontinued in favor of better support for
Web submissions. See this http URL
Cross-listings
- gr-qc/0605111 [abs, ps, pdf, other] :
-
Title: Does Cassini allow to measure relativistic orbital effects in the
Saturnian system of natural satellites?
Authors:
Lorenzo Iorio
Comments: Latex2e, 5 pages, no figures, 4 tables
In this paper we address the following question: do the recent advances in
the orbit determination of the major natural satellites of Saturn obtained with
the analysis of the first data sets from the Cassini mission allow to detect
the general relativistic gravitoelectric orbital precessions of such moons? The
answer is still negative. The present-day down-track accuracy would be adequate
for Mimas, Enceladus, Thetys, Dione, Rhea and Titan and inadequate for
Hyperion, Iapetus and Phoebe. Instead, the size of the systematic errors
induced by the mismodelling in the key parameters of the Saturnian
gravitational field like the even zonal harmonics Jl are larger than the
relativistic down-track shifts by about one order of magnitude, mainly for the
inner satellites like Mimas, Enceladus, Thetys, Dione, Rhea, Titan and
Hyperion. Iapetus and Phoebe are not sensibly affected by such kind of
perturbations. Moreover, the bias due to the uncertainty in Saturn's GM is
larger than the relativistic down-track effects for all such moons. Proposed
linear combinations of the satellites' orbital elements would allow to cancel
out the impact of the mismodelling in the low-degree even zonal harmonics and
GM, but the combined down-track errors would be larger than the combined
relativistic signature.
- hep-ph/0605255 [abs, ps, pdf, other] :
-
Title: Probing neutrino oscillations from supernovae shock waves via the
IceCube detector
Authors:
Sandhya Choubey,
N. P. Harries,
G.G. Ross
Comments: 30 pages, 15 figures, problems with postscript figures rectified
Subj-class: High Energy Physics - Phenomenology; Instrumentation and Detectors
The time dependent neutrino oscillation signals due to the passage of a shock
wave through the supernovae are analyzed for the case of three active neutrinos
and also for the case that there are two additional sterile neutrinos. It is
shown that, even without flavour identification and energy measurement,
detailed information about the masses and mixing angles of the neutrinos may be
obtained with a detector with excellent time resolution such as IceCube. Such a
signal would also give important information about the nature of the shock wave
within the supernovae.
- hep-ph/0605263 [abs, ps, pdf, other] :
-
Title: Baryogenesis by R-parity violating top quark decays and
neutron-antineutron oscillations
Authors:
A.D. Dolgov,
F.R. Urban
Comments: 25 pages, 2 figures, uses axodraw.sty
Generation of the cosmological baryon asymmetry in SUSY based model with
broken R-parity and low scale gravity is considered. The model allows for a
long-life time or even stable proton and observable neutron-antineutron
oscillations.
- hep-ph/0605264 [abs, ps, pdf, other] :
-
Title: Anatomy of F_D-Term Hybrid Inflation
Authors:
Bjorn Garbrecht,
Constantinos Pallis,
Apostolos Pilaftsis
Comments: 72 pages, LaTeX, 12 figures
We analyze the cosmological implications of F-term hybrid inflation with a
subdominant Fayet--Iliopoulos D-term whose presence explicitly breaks a
D-parity in the inflaton-waterfall sector. This scenario of inflation, which is
called F_D-term hybrid model for brevity, can naturally predict lepton number
violation at the electroweak scale, by tying the mu-parameter of the MSSM to an
SO(3)-symmetric Majorana mass m_N, via the vacuum expectation value of the
inflaton field. We show how a negative Hubble-induced mass term in a
next-to-minimal extension of supergravity helps to accommodate the present CMB
data and considerably weaken the strict constraints on the theoretical
parameters, resulting from cosmic string effects on the power spectrum P_R. The
usual gravitino overabundance constraint may be significantly relaxed in this
model, once the enormous entropy release from the late decays of the ultraheavy
waterfall gauge particles is properly considered. As the Universe enters a
second thermalization phase involving a very low reheat temperature, which
might be as low as about 0.3 TeV, thermal electroweak-scale resonant
leptogenesis provides a viable mechanism for successful baryogenesis, while
thermal right-handed sneutrinos emerge as new possible candidates for solving
the cold dark matter problem. In~addition, we discuss grand unified theory
realizations of F_D-term hybrid inflation devoid of cosmic strings and
monopoles, based on the complete breaking of an SU(2) subgroup. The F_D-term
hybrid model offers rich particle-physics phenomenology, which could be probed
at high-energy colliders, as well as in low-energy experiments of lepton
flavour or number violation.
Replacements
- astro-ph/0509803 [abs, ps, pdf, other] :
-
Title: Evolution of X-ray cluster scaling relations in simulations with
radiative cooling and non-gravitational heating
Authors:
Orrarujee Muanwong,
Scott T. Kay,
Peter A. Thomas
Comments: Accepted for publication in ApJ. Minor changes following referee's
comments
Note: replaced with revised version Thu, 25 May 2006 16:51:50 GMT (84kb)
- astro-ph/0510449 [abs, ps, pdf, other] :
-
Title: Intergalactic Photon Spectra from the Far IR to the UV Lyman Limit for
$0 < z < 6$ and the Optical Depth of the Universe to High Energy Gamma-Rays
Authors:
F.W. Stecker (NASA/GSFC and Ucla),
M.A. Malkan (UCLA),
S.T. Scully (JMU)
Comments: final version to be published in ApJ
Note: replaced with revised version Thu, 25 May 2006 14:32:00 GMT (507kb)
- astro-ph/0510841 [abs, ps, pdf, other] :
-
Title: The Impact of Temperature Fluctuations on the Lyman-alpha Forest Power
Spectrum
Authors:
Kamson Lai,
Adam Lidz,
Lars Hernquist,
Matias Zaldarriaga (Harvard-Smithsonian Center for Astrophysics)
Comments: 11 pages, 5 figures, ApJ accepted
Journal-ref: Astrophys. J. 644 (2006) 61-70
Note: replaced with revised version Wed, 24 May 2006 22:33:52 GMT (229kb)
- astro-ph/0601529 [abs, ps, pdf, other] :
-
Title: Comparison of 13CO Line and Far-Infrared Continuum Emission as a
Diagnostic of Dust and Molecular Gas Physical Conditions: I. Motivation and
Modeling
Authors:
W. F. Wall
Comments: The second version includes some discussion of why previous models of
dust-gas thermal coupling were simplistic. Paper III in the series discusses
this in more detail. Also, some minor errors were corrected. These errors in
no way affect the final conclusions
Note: replaced with revised version Thu, 25 May 2006 15:41:45 GMT (889kb)
- astro-ph/0601549 [abs, ps, pdf, other] :
-
Title: Comparison of 13CO Line and Far-Infrared Continuum Emission as a
Diagnostic of Dust and Molecular Gas Physical Conditions: III. Systematic
Effects and Scientific Implications
Authors:
W. F. Wall
Comments: The work of Schnee et al. 2006 is relevant here. This is now
mentioned in the Discussion and in the Conclusions
Note: replaced with revised version Thu, 25 May 2006 16:16:12 GMT (455kb)
- astro-ph/0601685 [abs, ps, pdf, other] :
-
Title: Massive and Red Objects predicted by a semianalytical model of galaxy
formation
Authors:
X. Kang,
Y.P. Jing,
J. Silk
Comments: Accepted for Publication in ApJ, added references
Note: replaced with revised version Thu, 25 May 2006 13:03:29 GMT (134kb)
- astro-ph/0602354 [abs, ps, pdf, other] :
-
Title: A transient I band excess in the optical spectrum of the accreting
millisecond pulsar SAX J1808.4-3658
Authors:
J. G. Greenhill (1),
A. B. Giles (1 and 2),
C. Coutures (3) ((1) University of Tasmania (2) Spurion Technology (3) CEA / Saclay)
Comments: 7 pages, 5 figures, accepted by MNRAS, 10 May 2006. Ver. 2 - larger
Table 2 + various modest text changes
Note: replaced with revised version Thu, 25 May 2006 02:34:59 GMT (74kb)
- astro-ph/0602363 [abs, ps, pdf, other] :
-
Title: Formation of Supermassive Black Holes by Direct Collapse in Pregalactic
Halos
Authors:
Mitchell C. Begelman,
Marta Volonteri,
Martin J. Rees
Comments: 11 pages, 2 figures, Monthly Notices of the Royal Astronomical
Society, in press. Minor revisions
Note: replaced with revised version Wed, 24 May 2006 20:28:15 GMT (31kb)
- astro-ph/0602577 [abs, ps, pdf, other] :
-
Title: CMB constraints on the fine structure constant
Authors:
Kazuhide Ichikawa,
Toru Kanzaki,
Masahiro Kawasaki
Comments: 19 pages, 8 figures
Note: replaced with revised version Thu, 25 May 2006 11:18:22 GMT (77kb)
- astro-ph/0603090 [abs, ps, pdf, other] :
-
Title: The X-ray nuclei of intermediate-redshift radio sources
Authors:
M. J. Hardcastle,
D. A. Evans,
J. H. Croston
Comments: Accepted by MNRAS. 12 pages, 5 figures. Latest version incorporates
referee's comments, plus some new data. Conclusions unchanged
Note: replaced with revised version Thu, 25 May 2006 09:41:33 GMT (46kb)
- astro-ph/0603279 [abs, ps, pdf, other] :
-
Title: The shock break-out of GRB 060218/SN 2006aj
Authors:
S. Campana,
V. Mangano,
A. J. Blustin,
P. Brown,
D.N. Burrows,
G. Chincarini,
J.R. Cummings,
G. Cusumano,
M. Della Valle,
D. Malesani,
P. Meszaros,
J.A. Nousek,
M. Page,
T. Sakamoto,
E. Waxman,
B. Zhang,
Z.G. Dai,
N. Gehrels,
S. Immler,
F.E. Marshall,
K.O. Mason,
A. Moretti,
P.T. O'Brien,
J.P. Osborne,
K.L. Page,
P. Romano,
P.W.A. Roming,
G. Tagliaferri,
L.R. Cominsky,
P. Giommi,
O. Godet,
J.A. Kennea,
H. Krimm,
L. Angelini,
S.D. Barthelmy,
P.T. Boyd,
D.M. Palmer,
A.A. Wells,
N.E. White
Comments: 12 pages, 3 color figures (final version). Note: this paper is
accepted for publication in Nature and it is embargoed for discussion in the
popular press
Note: replaced with revised version Thu, 25 May 2006 15:13:30 GMT (133kb)
- astro-ph/0603590 [abs, ps, pdf, other] :
-
Title: Swift Observations of the highly X-ray variable Narrow Line Seyfert 1
galaxy RX J0148.3-2758
Authors:
Dirk Grupe (PSU),
Karen M. Leighly (U Oklahoma),
Stefanie Komossa (MPE),
Patricia Schady (PSU, MSSL),
Paul T. O'Brien (U Leicester),
Davis N. Burrows (PSU),
John A. Nousek (PSU)
Comments: 19 pages; accepted for publication the Astronomical Journal
Note: replaced with revised version Thu, 25 May 2006 13:56:47 GMT (282kb)
- astro-ph/0603674 [abs, ps, pdf, other] :
-
Title: Perturbations of ionization fractions at the cosmological recombination
epoch
Authors:
B. Novosyadlyj
Comments: Accepted for publication in MNRAS; 13 pages, 4 figures, 1 table; used
code is made available; referee recommendations are included; minor changes
in the text and figures
Note: replaced with revised version Thu, 25 May 2006 19:38:58 GMT (171kb)
- astro-ph/0604387 [abs, ps, pdf, other] :
-
Title: A numerical study of non-gaussianity in the curvaton scenario
Authors:
Karim A. Malik,
David H. Lyth
Comments: 15 pages, 9 figures, some in colour; v2: references added, typos
corrected, section on curvaton evolution added
Note: replaced with revised version Thu, 25 May 2006 15:08:10 GMT (147kb)
- gr-qc/0604063 [abs, ps, pdf, other] :
-
Title: Cosmologies with Energy Exchange
Authors:
John D. Barrow,
T. Clifton
Comments: 12 pages, 1 figure
Note: replaced with revised version Thu, 25 May 2006 17:14:32 GMT (77kb)
- hep-ph/0605219 [abs, ps, pdf, other] :
-
Title: Neutrino Telescopes as a Probe of Broken $\mu$-$\tau$ Symmetry
Authors:
Zhi-zhong Xing
Comments: 10 pages, 1 figure. An important reference added
Note: replaced with revised version Thu, 25 May 2006 05:04:28 GMT (36kb)
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