Physical sciences topic list of research papers
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QCD factorization for spin-dependent cross sections in DIS and Drell–Yan processes at low transverse momentum
Abstract Built on a recent work on the quantum chromodynamic (QCD) factorization for semi-inclusive deep-inelastic scattering (DIS), we present a set of factorization formulas for the spin-dependent DIS and Drell–Yan cross sections at low transverse ...
2004 / Xiangdong Ji, Jian-Ping Ma, Feng Yuan -
Average kinetic energy of heavy quark (μπ2) inside heavy meson in 0− state by Bethe–Salpeter method
Abstract The average kinetic energy of the heavy quark inside B or D meson is computed by means of the instantaneous Bethe–Salpeter method. We first solve the relativistic Salpeter equation and obtain the relativistic wave function and mass of 0−...
2004 / C.S. Kim, Guo-Li Wang -
R-parity breaking via type II seesaw, decaying gravitino dark matter and PAMELA positron excess
Abstract We propose a new class of R-parity violating extension of MSSM with type II seesaw mechanism for neutrino masses where an unstable gravitino is the dark matter of the Universe. It decays predominantly into three leptons final states,...
2009 / Shao-Long Chen, Rabindra N. Mohapatra, Shmuel Nussinov, Yue Zhang -
Magnetic dilaton strings in anti-de Sitter spaces
Abstract With an appropriate combination of three Liouville-type dilaton potentials, we construct a new class of spinning magnetic dilaton string solutions which produces a longitudinal magnetic field in the background of anti-de Sitter spacetime....
2009 / Ahmad Sheykhi -
Anomaly holography, the Wess–Zumino–Witten term, and electroweak symmetry breaking
Abstract I consider anomalies in effective field theories (EFTs) of gauge fields coupled to fermions on an interval in AdS 5 ...
2008 / Ben Gripaios -
Delineating the conformal window
Abstract We identify and characterise the conformal window in gauge theories relevant for beyond the standard model building, e.g. technicolour, using the criteria of metric confinement and causal analytic couplings, which are known to be consistent ...
2010 / Mads T. Frandsen, Thomas Pickup, Michael Teper -
Can Hawking temperatures be negative?
Abstract It has been widely believed that the Hawking temperature for a black hole is uniquely determined by its metric and positive. But, I argue that this might not be true in the recently discovered black holes which include the exotic black...
2008 / Mu-In Park -
Heavy sterile neutrinos and supernova explosions
Abstract We consider sterile neutrinos with rest masses ∼ 0.2 GeV and with vacuum flavor mixing angles ...
2008 / George M. Fuller, Alexander Kusenko, Kalliopi Petraki -
Gluonic charmonium resonances at BaBar and Belle?
Abstract We confront predictions for hybrid charmonium and other gluonic excitations in the charm region with recently observed structures in the mass range above 3 GeV. The Y ( ...
2005 / Frank E. Close, Philip R. Page -
Beta decay in the field of electromagnetic wave and neutrino mass search
Abstract The results of the investigation of electromagnetic field effects on the process of beta decay are used for analyzing experimental data on direct neutrino mass search. It is shown that electromagnetic wave can affect beta spectrum by...
2004 / O.F. Dorofeev, A.E. Lobanov -
Elko as self-interacting fermionic dark matter with axis of locality
Abstract We here provide further details on the construction and properties of mass dimension one quantum fields based on Elko expansion coefficients. We show that by a judicious choice of phases, the locality structure can be dramatically improved. ...
2010 / D.V. Ahluwalia, Cheng-Yang Lee, D. Schritt -
Obtaining the neutrino mixing matrix with the tetrahedral group
Abstract We discuss various “minimalist” schemes to derive the neutrino mixing matrix using the tetrahedral group A 4 . ...
2005 / A. Zee -
Higgs boson mass and electroweak–gravity hierarchy from dynamical gauge–Higgs unification in the warped spacetime
Abstract Dynamical electroweak symmetry breaking by the Hosotani mechanism in the Randall–Sundrum warped spacetime is examined, relations among the W-boson mass ( m W ...
2005 / Yutaka Hosotani, Mitsuru Mabe -
Instability of tachyon supertube in type IIA Gödel spacetime
Abstract We study the tachyon supertube probes in a type IIA supergravity background which is a stringy-like Gödel spacetime and contains closed timelike curve. In the case of small value of f, which is a parameter of the background, we use the...
2005 / Wung-Hong Huang -
Novel TeV-scale seesaw mechanism with Dirac mediators
Abstract We propose novel tree level seesaw mechanism with TeV-scale vectorlike Dirac mediators that produce Majorana masses of the known neutrinos. The gauge quantum number assignment to the Dirac mediators allows them to belong to a weak triplet...
2010 / Ivica Picek, Branimir Radovčić -
Simultaneous solutions of the strong CP and μ problems
Abstract The μ parameter of the supersymmetric standard model is replaced by λS, where S is a singlet chiral superfield, introducing a Peccei–Quinn symmetry into the theory. Dynamics at the electroweak scale naturally solves both the strong CP and μ ...
2004 / Brian Feldstein, Lawrence J. Hall, Taizan Watari -
Quintessential inflation from a variable cosmological constant in a 5D vacuum
Abstract We explore an effective 4D cosmological model for the universe where the variable cosmological constant governs its evolution and the pressure remains negative along all the expansion. This model is introduced from a 5D vacuum state where...
2006 / Agustin Membiela, Mauricio Bellini -
Determining quark and lepton mass matrices by a geometrical interpretation
Abstract By designating one eigenvector of the mass matrix, one can reduce the free parameters in the mass matrix effectively. Applying this method to the quark mass matrix and to the lepton mass matrix, we find that this method is consistent with...
2007 / Zhi-Qiang Guo, Bo-Qiang Ma -
Quark mass effects on the stability of hybrid stars
Abstract We perform a study of the possible existence of hybrid stars with color superconducting quark cores using a specific hadronic model in a combination with an NJL-type quark model. It is shown that the constituent mass of the non-strange...
2004 / M. Buballa, F. Neumann, M. Oertel, I. Shovkovy -
Condition for superradiance in higher-dimensional rotating black holes
Abstract It is shown that the superradiance modes always exist in the radiation by the ( 4 + n ) ...
2005 / Eylee Jung, Sung Hoon Kim, D.K. Park