Physical sciences topic list of research papers
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Frequency dynamics of gain-switched injection-locked semiconductor lasers2002 / J. Dellunde, M.C. Torrent, J.M. Sancho, M. San Miguel
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Relative merits of different types of rest-frame optical observations to constrain galaxy physical parameters2012 / Camilla Pacifici, Stéphane Charlot, Jérémy Blaizot, Jarle Brinchmann
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Casimir energy–momentum tensor for a brane in de Sitter spacetime
Abstract Vacuum expectation values of the energy–momentum tensor for a conformally coupled scalar field are investigated in de Sitter (dS) spacetime in presence of a curved brane on which the field obeys the Robin boundary condition with coordinate...
2004 / A.A. Saharian, M.R. Setare -
Quintessence and the relic density of neutralinos
Abstract The archetypal model for the recently discovered dark energy component of the universe is based on the existence of a scalar field whose dynamical evolution comes down today to a non-vanishing cosmological constant. In the past—before...
2003 / Pierre Salati -
Non-minimally coupled quintom model inspired by string theory
Abstract In this Letter we consider a quintom model of dark energy with a single scalar field T given by a Lagrangian which inspired by tachyonic Lagrangian in string theory. We consider non-minimal coupling of tachyon field to the scalar curvature, ...
2008 / J. Sadeghi, M.R. Setare, A. Banijamali, F. Milani -
Cosmic strings in a space–time with positive cosmological constant
Abstract We study Abelian strings in a fixed de Sitter background. We find that the gauge and Higgs fields extend smoothly across the cosmological horizon and that the string solutions have oscillating scalar fields outside the cosmological horizon...
2008 / Yves Brihaye, Betti Hartmann -
Tops from light quarks: Full mass dependence at two-loops in QCD
Abstract I present the two-loop QCD corrections to the production of a massive quark–anti-quark pair in the massless quark–anti-quark annihilation channel. The result is obtained as a combination of a deep expansion in the mass around the high...
2008 / M. Czakon -
Constraints on the DGP Universe using observational Hubble parameter
Abstract In this work, we use observations of the Hubble parameter from the differential ages of passively evolving galaxies and the recent detection of the Baryon Acoustic Oscillations (BAO) at z ...
2007 / Hao-Yi Wan, Ze-Long Yi, Tong-Jie Zhang, Jie Zhou -
Signatures of extra dimensions from upsilon decays with a light gaugephobic Higgs boson
Abstract We explore non-standard Higgs phenomenology in the gaugephobic Higgs model in which the Higgs can be lighter than the usually quoted current experimental bound. The Higgs propagates in the bulk of a 5D space–time and Electroweak Symmetry...
2008 / Jamison Galloway, Bob McElrath, John McRaven -
Holographic kinetic k-essence model
Abstract We consider a connection between the holographic dark energy density and the kinetic k-essence energy density in a flat FRW universe. With the choice c ⩾ 1 ...
2009 / Norman Cruz, Pedro F. González-Díaz, Alberto Rozas-Fernández, Guillermo Sánchez -
Probing photon helicity in radiative B decays via charmonium resonance interference
Abstract We investigate a new method to probe the helicity of the photon emitted in the b → s γ transition. The method relies on...
2006 / Mathias Knecht, Thomas Schietinger -
A no-pure-boost uncertainty principle from spacetime noncommutativity
Abstract We study boost and space-rotation transformations in κ-Minkowski noncommutative spacetime, using the techniques that some of us had previously developed [A. Agostini, G. Amelino-Camelia, M. Arzano, A. Marciano, R.A. Tacchi, hep-th/0607221]...
2008 / Giovanni Amelino-Camelia, Giulia Gubitosi, Antonino Marcianò, Pierre Martinetti, Flavio Mercati -
[SU(3)×SU(2)×U(1)]2 and strong unification
Abstract A supersymmetric model with gauge symmetry G 1×G 2, where G i =SU(3) i ×SU(2) ...
2004 / Chun Liu -
The nature of dark matter
Abstract The observed strong dark-to-luminous matter coupling [F. Donato, et al., astro-ph/0403206, Mon. Not. R. Astron. Soc., submitted for publication; G. Gentile, et al., Mon. Not. R. Astron. Soc. 351 (2004) 903; D.T.F. Weldrake, et al., Mon....
2005 / A.A. Kirillov -
A two-loop contribution to Bs→μ+μ− at large tanβ in the MSSM
Abstract We consider a two-loop contribution of Higgs-mediated penguin diagram to B(B s →μ + μ −) at large tanβ in the...
2004 / Seungwon Baek -
A note on modulus-dominated SUSY-breaking
Abstract In models where supersymmetry-breaking is dominated by the Kähler moduli and/or the universal dilaton, the B-parameter at the unification scale should be consistent with the value of tan ...
2010 / James A. Maxin, Van E. Mayes, D.V. Nanopoulos -
Emergently thermalized islands in the landscape
Abstract In this Letter, we point out that in the eternal inflation driven by the metastable vacua of the landscape, it might be possible that some large and local quantum fluctuations with the null energy condition violation can stride over the...
2007 / Yun-Song Piao -
PDF uncertainties in Higgs production at hadron colliders
Abstract Using the new schemes provided by CTEQ and MRST Collaborations and by Alekhin, we analyze the uncertainties due to the parton distribution functions (PDFs) on the next-to-leading-order cross sections of the four main production processes of ...
2004 / Abdelhak Djouadi, Samir Ferrag -
Test of the Littlest Higgs model through the correlation among W boson, top quark and Higgs masses
Abstract Motivated by the recent precision measurements of the W boson mass and top quark mass, we test the Littlest Higgs model by confronting the prediction of M W ...
2008 / Sin Kyu Kang, C.S. Kim, Jubin Park -
M5-brane as a Nambu–Poisson geometry of a multi-D1-brane theory
Abstract We introduce a Nambu–Poisson bracket in the geometrical description of the D=11 M5-brane. This procedure allows us, under some assumptions, to eliminate the local degrees of freedom of the antisymmetric field in the M5-brane Hamiltonian and ...
2004 / A. De Castro, M.P. Garcia del Moral, I. Martin, A. Restuccia