Physical sciences topic list of research papers
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Bulk viscosity of gauge theory plasma at strong coupling
Abstract We propose an inequality on bulk viscosity of strongly coupled gauge theory plasmas that allow for a dual supergravity description. Using explicit example of the N = ...
2008 / Alex Buchel -
Duality invariance of all free bosonic and fermionic gauge fields
Abstract We give a simple general extension to all free bosonic and fermionic massless gauge fields of a recent proof that spin 2 is duality invariant in flat space. We also discuss its validity in (A)dS backgrounds and the relevance of...
2004 / S. Deser, D. Seminara -
“Coulomb + linear” form of the static QCD potential in operator–product expansion
Abstract The static QCD potential is analyzed in operator-product expansion within potential-NRQCD framework when r ≪ Λ ...
2004 / Y. Sumino -
Probing light pseudoscalar particles using synchrotron light
Abstract The need for purely laboratory-based light pseudoscalar particles searches has been emphasized many times in the literature, since astrophysical bounds on these particles rely on several assumptions to calculate the flux produced in stellar ...
2009 / Alex G. Dias, G. Lugones -
Kinetic description of particle emission from expanding source
Abstract The freeze out of the expanding systems, created in relativistic heavy ion collisions, is discussed. We combine kinetic freeze out equations with Bjorken type system expansion into a unified model. The important feature of the proposed...
2008 / V.K. Magas, L.P. Csernai -
QCD corrections to hadronic WWZ production with leptonic decays
Abstract Multi-lepton signatures appear in many new physics searches at the Large Hadron Collider. We here consider WWZ production with subsequent leptonic decay of the three vector bosons as a SM source of multi-lepton events. We have calculated...
2008 / V. Hankele, D. Zeppenfeld -
Jet quenching and elliptic flow
Abstract In jet quenching, a hard QCD parton, before fragmenting into a jet of hadrons, deposits a fraction of its energy in the medium, leading to suppressed production of high- p ...
2007 / A.K. Chaudhuri -
Understanding the radiative decays of vector charmonia to light pseudoscalar mesons
Abstract We show that the newly measured branching ratios of vector charmonia ( J / ψ , ψ ...
2011 / Qiang Zhao -
Appearance and disappearance signals at a β-beam and a super-beam facility
Abstract In this Letter we present the study of the eightfold degeneracy in the ( θ 13 , ...
2005 / A. Donini, E. Fernández-Martínez, S. Rigolin -
Multisupergravity from latticized extra dimension
Abstract The construction of the linearized four-dimensional multisupergravity from five-dimensional linearized supergravity with discretized fifth dimension is presented. The one-loop vacuum energy is evaluated when (anti)periodic boundary...
2004 / Shin'ichi Nojiri, Sergei D Odintsov -
The lattice free energy of QCD with clover fermions, up to three-loops
Abstract We calculate the perturbative value of the free energy in Lattice QCD, up to three loops. Our calculation is performed using Wilson gluons and the Sheikholeslami–Wohlert (clover) improved action for fermions. The free energy is directly...
2007 / A. Athenodorou, H. Panagopoulos, A. Tsapalis -
Connecting dark energy to neutrinos with an observable Higgs triplet
Abstract To connect the scalar field (acceleron) responsible for dark energy to neutrinos, the usual strategy is to add unnaturally light neutral singlet fermions (right-handed neutrinos) to the Standard Model. A better choice is actually a Higgs...
2006 / Ernest Ma, Utpal Sarkar -
Weinberg sum rules and the parity doubling of radial Regge trajectories
Abstract Assuming that the radial excitations of q ¯ q meson states exactly follow linear Regge...
2008 / A.A. Andrianov, D. Espriu -
A bulk effect to SUSY effective potential in a 5D super-Yang–Mills model
Abstract Supersymmetric effective potential of a 5D super-Yang–Mills model compactified on S 1/Z 2, i.e., on an interval l of extra dimension, is estimated at the 1-loop level by the auxiliary field tadpole...
2004 / Shoichi Ichinose, Akihiro Murayama -
The transverse spin structure of the pion at short distances
Abstract We study the form factors of the quark tensor currents in the pion at large squared momentum transfer Q 2 . It...
2010 / Markus Diehl, Lech Szymanowski -
Mesons and Higgs branch in defect theories
Abstract We consider the defect theory obtained by intersecting D3- and D5-branes along two common spatial directions. We work in the approximation in which the D5-brane is a probe in the AdS ...
2006 / Daniel Areán, Alfonso V. Ramallo, Diego Rodríguez-Gómez -
Extra electroweak phase transitions from strong dynamics
Abstract We show that models of dynamical electroweak symmetry breaking can possess an extremely rich finite temperature phase diagram. We suggest that early-universe extra electroweak phase transitions can appear in these models. ...
2009 / Matti Järvinen, Thomas A. Ryttov, Francesco Sannino -
Peculiar acceleration
Abstract It has been proposed recently to observe the change in cosmological redshift of distant galaxies or quasars with the next generation of large telescope and ultra-stable spectrographs (the so-called Sandage–Loeb test). Here we investigate...
2008 / Luca Amendola, Amedeo Balbi, Claudia Quercellini -
Hawking temperature from tunnelling formalism
Abstract It has recently been suggested that the attempt to understand Hawking radiation as tunnelling across black hole horizons produces a Hawking temperature double the standard value. It is explained here how one can obtain the standard value in ...
2007 / P. Mitra -
Naturally light sterile neutrinos from theory of R-parity
Abstract The fate of R-parity is one of the central issues in the minimal supersymmetric standard model (MSSM). Gauged B − L symmetry provides a natural...
2011 / Dilip Kumar Ghosh, Goran Senjanović, Yue Zhang