Physical sciences topic list of research papers
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Spinor-vector supersymmetry algebra in three dimensions
Abstract We focus on a spin-3/2 supersymmetry (SUSY) algebra of Baaklini in D = 3 and explicitly show a nonlinear realization of the SUSY algebra. The...
2006 / Kazunari Shima, Motomu Tsuda -
Restoring holographic dark energy in brane cosmology
Abstract We present a generalized version of holographic dark energy arguing that it must be considered in the maximally subspace of a cosmological model. In the context of brane cosmology it leads to a bulk holographic dark energy which transfers...
2008 / E.N. Saridakis -
Muon capture on 3He and the weak structure of the nucleon
Abstract The weak form factors of the nucleon, including the induced pseudoscalar form factor and second class terms, are constrained using a microscopic calculation of the weak capture process He ...
2008 / Doron Gazit -
Glueball Regge trajectories and the pomeron: a lattice study
Abstract We perform lattice calculations of the lightest J = 0 , 2 , 4 ...
2004 / Harvey B. Meyer, Michael J. Teper -
On a Lorentz-invariant interpretation of noncommutative space–time and its implications on noncommutative QFT
Abstract By invoking the concept of twisted Poincaré symmetry of the algebra of functions on a Minkowski space–time, we demonstrate that the noncommutative space–time with the commutation relations [ ...
2004 / M. Chaichian, P.P. Kulish, K. Nishijima, A. Tureanu -
Dispersion relation, black hole thermodynamics and generalization of uncertainty principle
Abstract In a heuristic manner, we discuss the effect of the modified dispersion relation (MDR) on the thermodynamics of a Schwarzschild black hole (including the corrections to black hole temperature and entropy). Different from the generalized...
2006 / Li Xiang -
Supersymmetric inflation of dynamical origin
Abstract Dynamical models of inflation are given with composite inflatons by means of massive supersymmetric gauge theory. Nearly flat directions and stable massive ones in the potential are identified and slow-roll during inflation is examined....
2008 / K. Hamaguchi, K.-I. Izawa, H. Nakajima -
Leptogenesis, Yukawa textures and weak-basis invariants
Abstract We show that a large class of sets of leptonic texture zeros considered in the literature imply the vanishing of certain CP-odd weak-basis invariants. These invariant conditions enable one to recognize a flavour model corresponding to a set ...
2005 / Gustavo C. Branco, M.N. Rebelo, J.I. Silva-Marcos -
The diffuse Galactic γ-rays from dark matter annihilation
Abstract The diffuse Galactic γ-rays from EGRET observation shows excesses above 1 GeV in comparison with the expectations from conventional Galactic cosmic ray (CR) propagation model. In the work we try to solve the “GeV excess” problem by dark...
2008 / Xiao-Jun Bi, Juan Zhang, Qiang Yuan, Jian-Li Zhang, HongSheng Zhao -
Magic neutrino mass matrix and the Bjorken–Harrison–Scott parameterization
Abstract Observed neutrino mixing can be described by a tribimaximal MNS matrix. The resulting neutrino mass matrix in the basis of a diagonal charged lepton mass matrix is both 2–3 symmetric and magic. By a magic matrix, I mean one whose row sums...
2006 / C.S. Lam -
The stau neutralino co-annihilation region at an International Linear Collider
Abstract We probe the stau neutralino co-annihilation domain of the parameter space allowed by the current experimental bounds on the light Higgs mass, the b → s ...
2005 / Vadim Khotilovich, Richard Arnowitt, Bhaskar Dutta, Teruki Kamon -
Comparative analysis of the transversities and the longitudinally polarized distribution functions of the nucleon
Abstract A first empirical extraction of the transversity distributions for the u- and d-quarks has been done by Anselmino et al. based on the combined global analysis of the measured azimuthal asymmetries in semi-inclusive deep inelastic...
2007 / M. Wakamatsu -
Holography of radiation and jet quenching
Abstract We study the non-linear propagation of radiation in N = 4 SYM at zero and finite temperature using the refined radius/scale duality in AdS/CFT....
2005 / Sang-Jin Sin, Ismail Zahed -
Instability of charged and rotating naked singularities
Abstract We provide evidence that “super-extremal” black hole spacetimes (either with charge larger than mass or angular momentum larger than mass), which contain naked singularities, are unstable under linearized perturbations. This is given by an...
2006 / Gustavo Dotti, Reinaldo J. Gleiser, Jorge Pullin -
Negative horizon mass for rotating black holes
Abstract Charged rotating black holes of Einstein–Maxwell–Chern–Simons theory in odd dimensions, D ⩾ 5 , may possess a negative horizon mass, while their...
2006 / Jutta Kunz, Francisco Navarro-Lérida -
New experimental limit on the Pauli exclusion principle violation by electrons
Abstract The Pauli exclusion principle (PEP) is one of the basic principles of modern physics and, even if there are no compelling reasons to doubt its validity, it is still debated today because an intuitive, elementary explanation is still...
2006 / S. Bartalucci, S. Bertolucci, M. Bragadireanu, M. Cargnelli, M. Catitti, et al. -
Cosmological dark energy from the cosmic QCD phase transition and colour entanglement
Abstract Recent astrophysical observations indicate that the universe is composed of a large amount of dark energy (DE) responsible for an accelerated expansion of the universe, along with a sizeable amount of cold dark matter (CDM), responsible for ...
2005 / Shibaji Banerjee, Abhijit Bhattacharyya, Sanjay K. Ghosh, Ernst-Michael Ilgenfritz, Sibaji Raha, et al. -
Dynamical chiral symmetry breaking and superconductivity in the supersymmetric Nambu–Jona-Lasinio model at finite temperature and density
Abstract We investigate the dynamical chiral symmetry breaking (DCSB) and superconductivity in a supersymmetric model at finite temperature and density. We employ the N = 1 ...
2006 / Tadafumi Ohsaku -
A prediction from the type III see-saw mechanism
Abstract A simple ansatz that is well-motivated by group-theoretical considerations is proposed in the context of the type III neutrino see-saw mechanism. It results in predictions for m ...
2005 / S.M. Barr, Ilja Dorsner -
Exact solutions of embedding the four-dimensional perfect fluid in a five- or higher-dimensional Einstein spacetime and the cosmological interpretations
Abstract We investigate an exact solution that describes the embedding of the four-dimensional (4D) perfect fluid in a five-dimensional (5D) Einstein spacetime. The effective metric of the 4D perfect fluid as a hypersurface with induced matter is...
2008 / Jie Ren, Xin-He Meng, Liu Zhao