Physical sciences topic list of research papers
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High-pT hadron spectra, azimuthal anisotropy and back-to-back correlations in high-energy heavy-ion collisions
Abstract The observed suppression of high-p T hadron spectra, finite azimuthal anisotropy, disappearance of jet-like back-to-back correlations, and their centrality dependence in...
2004 / Xin-Nian Wang -
Triple seesaw mechanism
Abstract On fitting the type II seesaw mechanism into the type I seesaw mechanism, we obtain a formula to the neutrino masses which get suppressed by high-scale M 3 ...
2010 / D. Cogollo, H. Diniz, C.A. de S. Pires -
Constructing non-Abelian vortices with arbitrary gauge groups
Abstract We construct the general vortex solution in the color–flavor-locked vacuum of a non-Abelian gauge theory, where the gauge group is taken to be the product of an arbitrary simple group and U ( ...
2008 / Minoru Eto, Toshiaki Fujimori, Sven Bjarke Gudnason, Kenichi Konishi, Muneto Nitta, et al. -
Invariant conserved currents for gravity
Abstract We develop a general approach, based on the Lagrange–Noether machinery, to the definition of invariant conserved currents for gravity theories with general coordinate and local Lorentz symmetries. In this framework, every vector field ξ on...
2008 / Yuri N. Obukhov, Guillermo F. Rubilar -
Bounds on generic high-energy physics modifications to the primordial power spectrum from back-reaction on the metric
Abstract Modifications to the primordial power spectrum of inflationary density perturbations have been studied recently using a boundary effective field theory approach. In the approximation of a fluctuating quantum field on a fixed background, the ...
2004 / M. Porrati -
A proposal for M2-brane–anti-M2-brane action
Abstract We propose a manifestly SO ( 8 ) invariant BF type Lagrangian for describing the dynamics of M2-brane–anti-M2-brane...
2010 / Mohammad R. Garousi -
On the decay of unparticles
Abstract We show that when the unparticle sector is coupled to the Standard Model, unparticle excitations can decay to Standard Model particles. This radically modifies the signals of unparticle production. We present a method for the calculation of ...
2008 / Arvind Rajaraman -
General relativity and quantum mechanics in five dimensions
Abstract In 5D, I take the metric in canonical form and define causality by null-paths. Then spacetime is modulated by a factor equivalent to the wave function, and the 5D geodesic equation gives the 4D Klein–Gordon equation. These results...
2011 / Paul S. Wesson -
Isolated tau leptons in events with large missing transverse momentum at HERA
Abstract A search for events containing isolated tau leptons and large missing transverse momentum, not originating from the tau decay, has been performed with the ZEUS detector at the electron–proton collider HERA, using 130 pb−1 of integrated...
2004 / S Chekanov, M Derrick, D Krakauer, J.H Loizides, S Magill, et al. -
Influence of bottom quark jet quenching on single electron tomography of Au + Au
Abstract High transverse momentum single (non-photonic) electrons are shown to be sensitive to the stopping power of both bottom, b, and charm, c, quarks in AA collisions. We apply the DGLV theory of radiative energy loss to predict c and b quark...
2005 / Magdalena Djordjevic, Miklos Gyulassy, Ramona Vogt, Simon Wicks -
Evolution equations for extended dihadron fragmentation functions
Abstract We consider dihadron fragmentation functions, describing the fragmentation of a parton in two unpolarized hadrons, and in particular extended dihadron fragmentation functions, explicitly dependent on the invariant mass, ...
2007 / Federico A. Ceccopieri, Marco Radici, Alessandro Bacchetta -
Survival probability of large rapidity gaps in a QCD model with a dynamical infrared mass scale
Abstract We compute the survival probability 〈 | S | ...
2006 / E.G.S. Luna -
Massive relativistic free fields with Lorentz spins and electric charges
Abstract The sixteen real coordinates of two-twistor space are transformed by a nonlinear mapping into an enlarged space–time framework. The standard relativistic phase space of coordinates (X μ ...
2004 / Andreas Bette, José A. de Azcárraga, Jerzy Lukierski, C. Miquel-Espanya -
Absence of gravitational contributions to the running Yang–Mills coupling
Abstract The question of a modification of the running gauge coupling of (non-)Abelian gauge theories by an incorporation of the quantum gravity contribution has recently attracted considerable interest. In this Letter we perform an involved...
2008 / Dietmar Ebert, Jan Plefka, Andreas Rodigast -
Gauges in the bulk II: Models with bulk scalars
Abstract Extending previous work in Randall–Sundrum type models, we construct low-energy effective actions for braneworlds with a bulk scalar field, with special attention to the case of BPS branes. Holding the branes at fixed coordinate position...
2005 / Jihn E. Kim, Gary B. Tupper, Raoul D. Viollier -
The geometry of small causal diamonds
Abstract The geometry of causal diamonds or Alexandrov open sets whose initial and final events p and q respectively have a proper-time separation τ small compared with the curvature scale is universal. The corrections from flat space are given as a ...
2007 / G.W. Gibbons, S.N. Solodukhin -
On theta dependence of glueballs from AdS/CFT
Abstract We study the theta dependence of the glueball spectrum in a strongly coupled cousin of large N gluodynamics defined via the AdS/CFT correspondence. By explicitly diagonalizing the 10d gravity equations in the presence of the RR 3-form and...
2005 / Gregory Gabadadze, Alberto Iglesias -
Relativistic non-instantaneous action-at-a-distance interactions
Abstract Relativistic action-at-a-distance theories with interactions that propagate at the speed of light in vacuum are investigated. We consider the most general action depending on the velocities and relative positions of the particles. The...
2005 / Domingo J. Louis-Martinez -
The emerging case for axion dark matter
Abstract Dark matter axions form a rethermalizing Bose–Einstein condensate. This provides an opportunity to distinguish axions from other forms of dark matter on observational grounds. I show that if the dark matter is axions, tidal torque theory...
2010 / P. Sikivie -
New experimental proposals for testing Dirac equation
Abstract The advent of phenomenological quantum gravity has ushered us in the search for experimental tests of the deviations from general relativity predicted by quantum gravity or by string theories, and as a by-product of this quest the possible...
2004 / Abel Camacho, Alfredo Macías