Physical sciences topic list of research papers
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Non-Abelian global strings at chiral phase transition
Abstract We construct non-Abelian global string solutions in the U ( N ) ...
2007 / Muneto Nitta, Noriko Shiiki -
Thermal relic abundances of particles with velocity-dependent interactions
Abstract We reexamine the evolution of thermal relic particle abundances for the case where the interaction rate depends on the particle velocities. For the case of Sommerfeld enhancement, we show that the standard analytic approximation, modified...
2010 / James B. Dent, Sourish Dutta, Robert J. Scherrer -
Neutrino, photon interaction in unparticle physics
Abstract We investigate the impact of unparticle physics on the annihilation of relic neutrinos with the neutrinos identified as primary source of ultra high energy (UHE) cosmic ray events, producing a cascade of photons and charged particles. We...
2008 / Sukanta Dutta, Ashok Goyal -
Parity violation in hot QCD: Why it can happen, and how to look for it
Abstract The arguments for the possibility of violation of P and CP symmetries of strong interactions at finite temperature are presented. A new way of...
2005 / Dmitri Kharzeev -
KamLAND neutrino spectra in energy and time: Indications for reactor power variations and constraints on the georeactor
Abstract The Kamioka liquid scintillator anti-neutrino detector (KamLAND) is sensitive to the neutrino event spectrum from (mainly Japanese) nuclear reactors in both the energy domain and the time domain. While the energy spectrum of KamLAND events...
2005 / G.L. Fogli, E. Lisi, A. Palazzo, A.M. Rotunno -
Addendum to: “Low-scale standard supersymmetric leptogenesis” [Phys. Lett. B 609 (2005) 351]2005 / Martti Raidal, Alessandro Strumia, Krzysztof Turzyński
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Brane vector phenomenology
Abstract Local oscillations of the brane world are manifested as massive vector fields. Their coupling to the Standard Model can be obtained using the method of nonlinear realizations of the spontaneously broken higher-dimensional space–time...
2008 / T.E. Clark, S.T. Love, Muneto Nitta, T. ter Veldhuis, C. Xiong -
The general type N solution of new massive gravity
Abstract We find the most general algebraic type N solution with non-vanishing scalar curvature, which comprises all type N solutions of new massive gravity in three dimensions. We also give the special forms of this solution, which correspond to...
2010 / Haji Ahmedov, Alikram N. Aliev -
Exclusive photoproduction of ϒ: From HERA to Tevatron
Abstract The forward photoproduction amplitude for γ p → ϒ p is calculated in a pQCD ...
2008 / A. Rybarska, W. Schäfer, A. Szczurek -
Cosmology with long-lived charged massive particles
Abstract We investigate the evolution of the bound state of negatively charged massive particles (CHAMPs) with light elements and discuss its cosmological consequences and the constraint. By numerically solving the Boltzmann equation, we study the...
2009 / Kazunori Kohri, Tomo Takahashi -
Extremal Kerr black hole/CFT correspondence in the five-dimensional Gödel universe
Abstract We extend the method of Kerr/CFT correspondence recently proposed in arXiv:0809.4266 [hep-th] to the extremal (charged) Kerr black hole embedded in the five-dimensional Gödel universe. With the aid of the central charges in the Virasoro...
2009 / Jun-Jin Peng, Shuang-Qing Wu -
Determination of the Gamow–Teller quenching factor from charge exchange reactions on 90Zr
Abstract Double differential cross sections between 0°–12° were measured for the 90Zr(n, p) reaction at 293 MeV over a wide excitation energy range of 0–70 MeV. A multipole decomposition technique was applied to the present data as well as the...
2005 / K. Yako, H. Sakai, M.B. Greenfield, K. Hatanaka, M. Hatano, et al. -
Quasi-normal modes of extremal black holes from hidden conformal symmetry
Abstract In this Letter, we construct the quasi-normal modes of three-dimensional extremal black holes in an algebraic way. We show that the infinite towers of the quasi-normal modes of scalar, vector and tensor could be constructed as the...
2011 / Bin Chen, Jia-ju Zhang -
Transverse beam polarization and CP-violating triple gauge-boson couplings in e+e−→γZ
Abstract We show that an anomalous CP-violating γγZ vertex gives rise to a novel asymmetry with transversely polarized electron and positron beams in the process e + e −→γZ. This...
2004 / B. Ananthanarayan, Saurabh D. Rindani, Ritesh K. Singh, A. Bartl -
Two-Parameter Bifurcation Analysis of the Buck Converter2009 / Alessandro Colombo, Paola Lamiani, Luis Benadero, Mario di Bernardo
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Schwinger mechanism enhanced by the Nielsen–Olesen instability
Abstract We discuss gluon production by the Schwinger mechanism in collinear color-electric and magnetic fields which may be realized in pre-equilibrium stages of ultra-relativistic heavy-ion collisions. Fluctuations of non-Abelian gauge fields...
2012 / Naoto Tanji, Kazunori Itakura -
Optimization of Electrostatic Focusing for Line Source Electron Beam Emitter Assembly
Abstract We studied and analyzed the design of line source electron gun numerically and verified results experimentally. A minimum beam diameter of 0.9mm is achieved in the post anode region at a distance of 20mm from the centre of cathode surface....
2012 / Munawar Iqbal, Ghalib ul Islam, Ayub Faridi, Harris Rashid -
Reactions Induced by Real Photons for Nuclear Structure and Nuclear Astrophysics
Abstract This contribution presents examples for recent experimental studies with real photons. Topics include the electric dipole response below the particle separation energy (pygmy resonance), the magnetic scissors mode in deformed nu, an...
2012 / J. Enders -
Advances in atomic physics
Abstract In this review article, important developments in the field of atomic physics are highlighted and linked to research works the author was involved in himself as a leader of the Cairo University – Atomic Physics Group. Starting from the late ...
2013 / Tharwat M. El-Sherbini -
A default prior distribution for contingency tables with dependent factor levels
Abstract A default prior distribution is proposed for the Bayesian analysis of contingency tables. The prior is specified to allow for dependence between levels of the factors. Different dependence structures are considered, including conditional...
2013 / Antony M. Overstall, Ruth King