- Anti–de Sitter-space/conformal-field-theory correspondence and large-N volume independence
Author(s): Erich Poppitz and Mithat Ünsal
We study the Eguchi-Kawai reduction in the strong-coupling domain of gauge theories via the gravity dual of N=4 super-Yang-Mills on R^{3} ×S^{1} . We show that D-branes geometrize volume independence in the center-symmetric vacuum and give supergravity predictions for the range of validity of reduc...
[Phys. Rev. D 82, 066002] Published Thu Sep 02, 2010
- Moduli space metric for well-separated non-Abelian vortices
Author(s): Toshiaki Fujimori, Giacomo Marmorini, Muneto Nitta, Keisuke Ohashi, and Norisuke Sakai
The moduli space metric and its Kähler potential for well-separated non-Abelian vortices are obtained in U(N) gauge theories with N Higgs fields in the fundamental representation.
[Phys. Rev. D 82, 065005] Published Thu Sep 02, 2010
- Bimetric theory of gravity from the nonchiral Plebanski action
Author(s): Simone Speziale
We study a modification of the Plebanski action for general relativity, which leads to a modified theory of gravity with 8 degrees of freedom. We show how the action can be recasted as a bimetric theory of gravity, and expanding around a biflat background we identify the 6 extra degrees of freedom...
[Phys. Rev. D 82, 064003] Published Thu Sep 02, 2010
- Three-dimensional simulations of the accretion process in Kerr space-time with arbitrary value of the spin parameter
Author(s): Cosimo Bambi and Naoki Yoshida
We present the results of three-dimensional general relativistic hydrodynamic simulations of adiabatic and spherically symmetric accretion in Kerr space-time. We consider compact objects with spin parameter |a_{*} |≤1 (black holes) and with |a_{*} |>1 (superspinars). Our full three-dimensional simu...
[Phys. Rev. D 82, 064002] Published Thu Sep 02, 2010
- Erratum: Quark-mixing renormalization effects in the determination of the CKM parameters |V_{ij} | [Phys. Rev. D 79, 076007 (2009)]
Author(s): Andrea A. Almasy, Bernd A. Kniehl, and Alberto Sirlin
[Phys. Rev. D 82, 059901] Published Thu Sep 02, 2010
- Contribution of twist-3 multigluon correlation functions to single spin asymmetry in semi-inclusive deep inelastic scattering
Author(s): Hiroo Beppu, Yuji Koike, Kazuhiro Tanaka, and Shinsuke Yoshida
As a possible source of the single transverse-spin asymmetry, we study the contribution from purely gluonic correlation represented by the twist-3 “three-gluon correlation” functions in the transversely polarized nucleon. We first define a complete set of the relevant three-gluon correlation fun...
[Phys. Rev. D 82, 054005] Published Thu Sep 02, 2010
- Associated Υ+γ production at the LHC in the k_{t} -factorization approach
Author(s): S. P. Baranov
In the framework of the k_{t} -factorization approach, the photon-associated production of Υ mesons at the present-day LHC conditions is studied. The differential cross sections and polarization parameters are calculated in the “helicity” and Collins-Soper systems. Special attention is paid to ...
[Phys. Rev. D 82, 054004] Published Thu Sep 02, 2010
- Erratum: Forecast constraints on inflation from combined CMB and gravitational wave direct detection experiments [Phys. Rev. D 81, 083524 (2010)]
Author(s): Sachiko Kuroyanagi, Christopher Gordon, Joseph Silk, and Naoshi Sugiyama
[Phys. Rev. D 82, 069901] Published Wed Sep 01, 2010
- Gravity as the square of gauge theory
Author(s): Zvi Bern, Tristan Dennen, Yu-tin Huang, and Michael Kiermaier
We explore consequences of the recently discovered duality between color and kinematics, which states that kinematic numerators in a diagrammatic expansion of gauge-theory amplitudes can be arranged to satisfy Jacobi-like identities in one-to-one correspondence to the associated color factors. Using...
[Phys. Rev. D 82, 065003] Published Wed Sep 01, 2010
- Deforming the Maxwell-Sim algebra
Author(s): G. W. Gibbons, Joaquim Gomis, and C. N. Pope
The Maxwell algebra is a noncentral extension of the Poincaré algebra, in which the momentum generators no longer commute, but satisfy [P_{μ} ,P_{ν} ]=Z_{μν} . The charges Z_{μν} commute with the momenta, and transform tensorially under the action of the angular momentum generators. If one co...
[Phys. Rev. D 82, 065002] Published Wed Sep 01, 2010
- U(1) decoupling, Kleiss-Kuijf and Bern-Carrasco-Johansson relations in N=4 super Yang-Mills
Author(s): Yin Jia, Rijun Huang, and Chang-Yong Liu
By using the Britto-Cachazo-Feng-Witten recursion relation of N=4 super Yang-Mills theory, we proved the color reflection, U(1) decoupling, Kleiss-Kuijf and Bern-Carrasco-Johansson relations for color-ordered amplitudes of N=4 super Yang-Mills theory. This proof verified the conjectured Bern-Carrasc...
[Phys. Rev. D 82, 065001] Published Wed Sep 01, 2010
- Schwarzschild–anti-de Sitter black holes within isothermal cavity: Thermodynamics, phase transitions, and the Dirichlet problem
Author(s): M. M. Akbar
The thermodynamics of Schwarzschild black holes within spherical isothermal cavities in anti–de Sitter (AdS) space is studied for arbitrary dimensions in the semiclassical approximation of the Euclidean path integral of quantum gravity. For such boundary conditions, known classical solutions are a...
[Phys. Rev. D 82, 064001] Published Wed Sep 01, 2010
- Nonlinear dynamics of cosmic strings with nonscaling loops
Author(s): Vitaly Vanchurin
At early stages the dynamics of cosmic string networks is expected to be influenced by an excessive production of small loops at the scales of initial conditions l_{min} . To understand the late time behavior we propose a very simple analytical model of strings with a nonscaling population of loo...
[Phys. Rev. D 82, 063503] Published Wed Sep 01, 2010
- Primordial density perturbations and reheating from gravity
Author(s): N. C. Tsamis and R. P. Woodard
We consider the presence and evolution of primordial density perturbations in a cosmological model based on a simple ansatz which captures—by providing a set of effective gravitational field equations—the strength of the enhanced quantum loop effects that can arise during inflation. After derivi...
[Phys. Rev. D 82, 063502] Published Wed Sep 01, 2010
- Dark matter subhalos in the Fermi first source catalog
Author(s): Matthew R. Buckley and Dan Hooper
The Milky Way’s dark matter halo is thought to contain large numbers of smaller subhalos. These objects can contain very high densities of dark matter and produce potentially observable fluxes of gamma rays. In this article, we study the gamma ray sources in the Fermi Gamma Ray Space Telescope’...
[Phys. Rev. D 82, 063501] Published Wed Sep 01, 2010
- Anomalous parity asymmetry of WMAP 7-year power spectrum data at low multipoles: Is it cosmological or systematics?
Author(s): Jaiseung Kim and Pavel Naselsky
It is natural to assume a parity-neutral Universe and accordingly no particular parity preference in the cosmic microwave background sky. However, our investigation based on the WMAP 7-year power spectrum shows there exists a large-scale odd-parity preference with high statistical significance. We a...
[Phys. Rev. D 82, 063002] Published Wed Sep 01, 2010
- Large-scale velocities and primordial non-Gaussianity
Author(s): Fabian Schmidt
We study the peculiar velocities of density peaks in the presence of primordial non-Gaussianity. Rare, high-density peaks in the initial density field can be identified with tracers such as galaxies and clusters in the evolved matter distribution. The distribution of relative velocities of peaks is ...
[Phys. Rev. D 82, 063001] Published Wed Sep 01, 2010
- Radiative symmetry breaking of the minimal left-right symmetric model
Author(s): Martin Holthausen, Manfred Lindner, and Michael A. Schmidt
Under the assumption of classical conformal invariance, we study the Coleman-Weinberg symmetry breaking mechanism in the minimal left-right symmetric model. This model is attractive as it provides a natural framework for small neutrino masses and the restoration of parity as a good symmetry of natur...
[Phys. Rev. D 82, 055002] Published Wed Sep 01, 2010
- Top quark electric dipole moment in a minimal supersymmetric standard model extension with vectorlike multiplets
Author(s): Tarek Ibrahim and Pran Nath
The electric dipole moment (EDM) of the top quark is calculated in a model with a vector like multiplet which mixes with the third generation in an extension of the minimal supersymmetric standard model. Such mixings allow for new CP violating phases. Including these new CP phases, the EDM of the to...
[Phys. Rev. D 82, 055001] Published Wed Sep 01, 2010
- Hadron multiplicity in pp and AA collisions at LHC from the color glass condensate
Author(s): Eugene Levin and Amir H. Rezaeian
We provide quantitative predictions for the rapidity, centrality and energy dependencies of inclusive charged-hadron productions for the forthcoming LHC measurements in nucleus-nucleus collisions based on the idea of gluon saturation in the color-glass condensate framework. Our formulation gives ver...
[Phys. Rev. D 82, 054003] Published Wed Sep 01, 2010
- Bounding the B_{s} →γγ decay from Higgs mediated flavor changing neutral current transitions
Author(s): J. I. Aranda, J. Montaño, F. Ramírez-Zavaleta, J. J. Toscano, and E. S. Tututi
The Higgs-mediated flavor violating bottom-strange quarks transitions induced at the one-loop level by a nondiagonal Hbs coupling are studied within the context of an effective Yukawa sector that comprises SU_{L} (2)×U_{Y} (1)-invariant operators of up to dimension six. The most recent experimental...
[Phys. Rev. D 82, 054002] Published Wed Sep 01, 2010
- Dielectric correction to the chiral magnetic effect
Author(s): Kenji Fukushima and Marco Ruggieri
We derive an electric current density j_{em} in the presence of a magnetic field B and a chiral chemical potential μ_{5} . We show that j_{em} has, not only the anomaly-induced term ∝μ_{5} B (i.e. chiral magnetic effect), but also a nonanomalous correction which comes from interaction effects an...
[Phys. Rev. D 82, 054001] Published Wed Sep 01, 2010
- Dynamical p-branes with a cosmological constant
Author(s): Kei-ichi Maeda, Masato Minamitsuji, Nobuyoshi Ohta, and Kunihito Uzawa
We present a class of dynamical solutions in a D-dimensional gravitational theory coupled to a dilaton, a form field strength, and a cosmological constant. We find that for any D due to the presence of a cosmological constant, the metric of solutions depends on a quadratic function of the brane worl...
[Phys. Rev. D 82, 046007] Published Tue Aug 31, 2010
- Linear stability of spherically symmetric and wormhole solutions supported by the sine-Gordon ghost scalar field
Author(s): Vladimir Dzhunushaliev, Vladimir Folomeev, Douglas Singleton, and Ratbay Myrzakulov
In this paper we investigate wormhole and spherically symmetric solutions in four-dimensional gravity plus a matter source consisting of a ghost scalar field with a sine-Gordon potential. For the wormhole solutions we also include the possibility of electric and/or magnetic charges. For both types o...
[Phys. Rev. D 82, 045032] Published Tue Aug 31, 2010
- Stable p-branes in Chern-Simons AdS supergravities
Author(s): José D. Edelstein, Alan Garbarz, Olivera Mišković, and Jorge Zanelli
We construct static codimension-two branes in any odd dimension D, with a negative cosmological constant, and show that they are exact solutions of Chern-Simons (super)gravity theory for (super)AdS_{D} coupled to external sources. The stability of these solutions is analyzed by counting the number o...
[Phys. Rev. D 82, 044053] Published Tue Aug 31, 2010
- Charged anisotropic matter with linear or nonlinear equation of state
Author(s): Victor Varela, Farook Rahaman, Saibal Ray, Koushik Chakraborty, and Mehedi Kalam
Ivanov pointed out substantial analytical difficulties associated with self-gravitating, static, isotropic fluid spheres when pressure explicitly depends on matter density. Simplifications achieved with the introduction of electric charge were noticed as well. We deal with self-gravitating, charged,...
[Phys. Rev. D 82, 044052] Published Tue Aug 31, 2010
- Spherical harmonic modes of 5.5 post-Newtonian gravitational wave polarizations and associated factorized resummed waveforms for a particle in circular orbit around a Schwarzschild black hole
Author(s): Ryuichi Fujita and Bala R. Iyer
Recent breakthroughs in numerical relativity enable one to examine the validity of the post-Newtonian expansion in the late stages of inspiral. For the comparison between post-Newtonian (PN) expansion and numerical simulations, the waveforms in terms of the spin-weighted spherical harmonics are more...
[Phys. Rev. D 82, 044051] Published Tue Aug 31, 2010
- Sub-eV scalar dark matter through the super-renormalizable Higgs portal
Author(s): Federico Piazza and Maxim Pospelov
The Higgs portal of the standard model provides the opportunity for coupling to a very light scalar field ϕ via the super-renormalizable operator ϕ(H^{†} H). This allows for the existence of a very light scalar dark matter that has coherent interaction with the standard model particles and yet h...
[Phys. Rev. D 82, 043533] Published Tue Aug 31, 2010
- Thermal noise in advanced gravitational wave interferometric antennas: A comparison between arbitrary order Hermite and Laguerre Gaussian modes
Author(s): Jean-Yves Vinet
We study the thermal noise caused by mechanical or thermomechanical dissipation in mirrors of interferometric gravitational wave antennas. We give relative figures of merit for arbitrary Hermite-Gauss or Laguerre-Gauss optical beams regarding the Brownian and thermoelastic noises (substrate and coat...
[Phys. Rev. D 82, 042003] Published Tue Aug 31, 2010
- Constraints on the flux of primary cosmic-ray photons at energies E>10^{18} eV from Yakutsk muon data
Author(s): A. V. Glushkov, I. T. Makarov, M. I. Pravdin, I. E. Sleptsov, D. S. Gorbunov, G. I. Rubtsov, and S. V. Troitsky (Yakutsk EAS Array)
Comparing the signals measured by the surface and underground scintillator detectors of the Yakutsk Extensive Air Shower Array, we place upper limits on the integral flux and the fraction of primary cosmic-ray photons with energies E>10^{18} eV, E>2×10^{18} eV, and E>4×10^{18} eV. T...
[Phys. Rev. D 82, 041101] Published Tue Aug 31, 2010
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