Physical sciences topic list of research papers
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Emission and absorption of photons and the black-body spectrum in Lorentz-odd electrodynamics
Abstract We study emission and absorption of radiation by non-relativistic electrons within the framework of a Lorentz-breaking electrodynamics in ( 3 + ...
2008 / J.M. Fonseca, A.H. Gomes, W.A. Moura-Melo -
Supersymmetry does not imply mass degeneracy
Abstract It is commonly believed that unbroken supersymmetry (SUSY) implies that all members of a supermultiplet have the same mass. We demonstrate that this is not true, by exhibiting a simple counterexample. We employ the formalism of homeotic...
2004 / Gabriela Barenboim, Joseph Lykken -
LEP data and the stability of the potential confront the mSUGRA model
Abstract The requirement that the supersymmetric scalar potential be stable in the minimal supergravity (mSUGRA) model imposes an upper bound on the universal gaugino mass m ...
2004 / Amitava Datta, Abhijit Samanta -
Maximally non-abelian vortices from self-dual Yang–Mills fields
Abstract A particular dimensional reduction of SU ( 2 N ) Yang–Mills theory on Σ ...
2010 / Nicholas S. Manton, Norisuke Sakai -
Geometric and stochastic clusters of gravitating Potts models
Abstract We consider the fractal dimensions of critical clusters occurring in configurations of a q-state Potts model coupled to the planar random graphs of the dynamical triangulations approach to Euclidean quantum gravity in two dimensions. For...
2006 / Wolfhard Janke, Martin Weigel -
Four-point correlator of vector currents and electric current susceptibility in holographic QCD
Abstract In this work we calculate the four-point correlation function of vector quark currents of QCD via holographic QCD model. Computing the correlator we take into account the exchange of vector and axial vector bosons and dilaton in the bulk....
2010 / A. Krikun -
The nature of ZZ branes
Abstract In minimal non-critical string theory we show that the principal ( r , s ) ZZ brane can be viewed ...
2007 / J. Ambjørn, J.A. Gesser -
Decay of the high-spin isomer in 160Re: Changing single-particle structure beyond the proton drip line
Abstract A new high-spin isomeric state ( t 1 / 2 ...
2010 / I.G. Darby, R.D. Page, D.T. Joss, J. Simpson, L. Bianco, et al. -
Lovelock gravity at the crossroads of Palatini and metric formulations
Abstract We consider extensions of the Einstein–Hilbert Lagrangian to a general functional of metric and Riemann curvature tensor, L ( g ...
2008 / Q. Exirifard, M.M. Sheikh-Jabbari -
Lattice gluodynamics computation of Landau-gauge Green's functions in the deep infrared
Abstract We present recent results for the Landau-gauge gluon and ghost propagators in SU ( 3 ) lattice gluodynamics obtained on a ...
2009 / I.L. Bogolubsky, E.-M. Ilgenfritz, M. Müller-Preussker, A. Sternbeck -
Microscopic shell-model description of the exotic nucleus 16C
Abstract The structure of the neutron-rich carbon nucleus 16C is described by introducing a new microscopic shell model of no-core type. The model space is composed of the 0s, 0p, 1s0d, and 1p0f shells. The effective interaction is microscopically...
2007 / S. Fujii, T. Mizusaki, T. Otsuka, T. Sebe, A. Arima -
Impact of single-top measurement to Littlest Higgs model with T-parity
Abstract We show that a precise measurement of the single-top production cross section at the Tevatron and the LHC can strongly constrain the model parameters of the Littlest Higgs model with T-parity. A reduction in the single-top production rate...
2008 / Qing-Hong Cao, Chong Sheng Li, C.-P. Yuan -
Sub-barrier fusion of two-neutron halo nuclei
Abstract The tunneling of composite systems, where breakup may occur during the barrier penetration process, is considered in connection with the fusion of halo-like radioactive, neutron- and proton-rich nuclei, on heavy targets. The large amount of ...
2010 / P.R.S. Gomes, L.F. Canto, J. Lubian, M.S. Hussein -
Fluctuations and energy shifts in the Bethe ansatz
Abstract We study fluctuations and finite size corrections for the ferromagnetic thermodynamic limit in the Bethe ansatz for the Heisenberg XXX ...
2005 / N. Beisert, L. Freyhult -
The phases of isospin-asymmetric matter in the two-flavor NJL model
Abstract We investigate the phase diagram of isospin-asymmetric matter at T = 0 in the two-flavor Nambu–Jona-Lasinio model. Our approach describes the...
2005 / S. Lawley, W. Bentz, A.W. Thomas -
Distinguishing dark matter annihilation enhancement scenarios via halo shapes
Abstract Sommerfeld enhancement and Breit–Wigner enhancement of the dark matter annihilation have been proposed to explain the “boost factor” which is suggested by observed cosmic ray excesses. Although these two scenarios can provide almost...
2010 / Masahiro Ibe, Hai-Bo Yu -
Nonlinear Bethe–Heitler pair creation with attosecond laser pulses at the LHC
Abstract The creation of lepton pairs ( e + e − ...
2009 / Carsten Müller -
New inflation, preinflation, and leptogenesis
Abstract We present a new inflation model in which the inflationary scenario including subsequent reheating is determined in part by a U(1) R ×Z n ...
2004 / V.N Şenoğuz, Q Shafi -
Gauge link structure in quark–quark correlators in hard processes
Abstract Distribution functions in hard processes can be described by quark–quark correlators, nonlocal matrix elements of quark fields. Color gauge invariance requires inclusion of appropriate gauge links in these correlators. For transverse...
2004 / C.J. Bomhof, P.J. Mulders, F. Pijlman -
Impact of string and monopole-type junctions on domain wall dynamics: Implications for dark energy
Abstract We investigate the potential role of string and monopole-type junctions in the frustration of domain wall networks using a velocity-dependent one-scale model for the characteristic velocity, v, and the characteristic length, L, of the...
2010 / L. Sousa, P.P. Avelino