Physical sciences topic list of research papers
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NNLO vertex corrections in charmless hadronic B decays: Imaginary part
Abstract We compute the imaginary part of the 2-loop vertex corrections in the QCD factorization framework for hadronic two-body decays as B → π π ...
2007 / Guido Bell -
Seiberg duality in Chern–Simons theory
Abstract We argue that N = 2 supersymmetric Chern–Simons theories exhibit a strong–weak coupling Seiberg-type duality. We also discuss supersymmetry...
2008 / Amit Giveon, David Kutasov -
Non-zero and CP-violation in inverse neutrino mass matrix
Abstract The generic predictions of inverse Majorana neutrino mass matrix, M ν − ...
2011 / Surender Verma -
Analysis of the Temperature Dependence of the Open-Circuit Voltage
Abstract The influence of temperature on the open-circuit voltage (VOC) of crystalline silicon solar cells is analysed using different semiconductor temperature models with different levels of accuracy. The strongest influence besides the direct...
2012 / P. Löper, D. Pysch, A. Richter, M. Hermle, S. Janz, et al. -
Microcavity controlled coupling of excitonic qubits2013 / F. Albert, K. Sivalertporn, J. Kasprzak, M. Strauß, C. Schneider, et al.
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Energy in the very early Universe
Abstract The K = 0 Friedmann–Robertson–Walker metric, which satisfies the Killing spinor equation and approximates a solution to the field equations of...
2007 / Simon Davis -
Search for single top production via FCNC at LEP at s=189–208 GeV
Abstract A search for single top production (e+e−→t c ̄ ) via flavour changing neutral currents (FCNC) was performed using the data taken by the...
2004 / J. Abdallah, P. Abreu, W. Adam, P. Adzic, T. Albrecht, et al. -
Coulomb scattering for scalar field in Schrödinger picture
Abstract The scattering of a charged scalar field on Coulomb potential on de Sitter space–time is studied using the solution of the free Klein–Gordon equation. We find that the scattering amplitude is independent of the choice of the picture and in...
2008 / Cosmin Crucean, Radu Racoceanu, Adrian Pop -
Scalings of elliptic flow for a fluid at finite shear viscosity
Abstract Within a parton cascade approach we investigate the scaling of the differential elliptic flow v 2 ( ...
2008 / G. Ferini, M. Colonna, M. Di Toro, V. Greco -
Using atom interferometry to search for new forces
Abstract Atom interferometry is a rapidly advancing field and this Letter proposes an experiment based on existing technology that can search for new short distance forces. With current technology it is possible to improve the sensitivity by up to a ...
2010 / Jay G. Wacker -
Imposing causality on a matrix model
Abstract We introduce a new matrix model that describes Causal Dynamical Triangulations (CDT) in two dimensions. In order to do so, we introduce a new, simpler definition of 2D CDT and show it to be equivalent to the old one. The model makes use of...
2009 / Dario Benedetti, Joe Henson -
Identification of one-phonon and two-phonon γ-vibrational bands in odd-Z 103Nb nucleus
Abstract Collective bands in the neutron-rich 103Nb nucleus have been investigated by measuring prompt γ-rays following spontaneous fission of 252Cf. Three new bands have been identified. The band based on the 716.8 keV level is proposed as a...
2009 / Jian-Guo Wang, Sheng-Jiang Zhu, J.H. Hamilton, A.V. Ramayya, J.K. Hwang, et al. -
Phonon and multi-phonon excitations in rotational nuclei by exact diagonalization of the Bohr Hamiltonian
Abstract Exact numerical diagonalization of the Bohr Hamiltonian by SU ( 1 , 1 ) ...
2009 / M.A. Caprio -
Multiple fundamental strings and waves to non-linear order in the background fields
Abstract The Chern–Simons actions of the multiple fundamental string and the multiple gravitational wave are established to full order in the background fields. Gauge invariance is checked. Special attention is drawn to the non-Abelian gauge...
2007 / Joke Adam -
Holographic counterterms from local supersymmetry without boundary conditions
Abstract We show in some lower-dimensional supergravity models that the holographic counterterms which are needed in the AdS/CFT correspondence to make the theory finite, coincide with the counterterms that are needed to make the action...
2009 / Daniel Grumiller, Peter van Nieuwenhuizen -
CP violation in models with TeV-scale SUSY breaking
Abstract We estimate contributions of the goldstino supermultiplet to the electric dipole moment (EDM) in the case that the SUSY breaking scale Λ S is of order the TeV scale. We found that such contributions can saturate the...
2003 / Motoi Endo, Yutaka Sakamura -
CPT violating electrodynamics and Chern–Simons modified gravity
Abstract The electrodynamics with a Chern–Simons term p μ A ν ...
2009 / Mingzhe Li, Yi-Fu Cai, Xiulian Wang, Xinmin Zhang -
Radiation of scalar oscillons in 2 and 3 dimensions
Abstract The radiation loss of small-amplitude radially symmetric oscillons (long-living, spatially localized, time-dependent solutions) in two- and three-dimensional scalar field theories is computed analytically in the small-amplitude expansion....
2009 / Gyula Fodor, Péter Forgács, Zalán Horváth, Márk Mezei -
Stability conditions for a noncommutative scalar field coupled to gravity
Abstract We consider a noncommutative scalar field with a covariantly constant noncommutative parameter in a curved space–time background. For a potential as a noncommutative polynomial it is shown that the stability conditions are unaffected by the ...
2009 / Orfeu Bertolami, Carlos A.D. Zarro -
Alpha decay perturbations by atomic effects at extreme conditions
Abstract The alpha tunneling effect in the presence of electron screening is calculated within the Debye model. Calculations show that very small effects are predicted by cooling the metal to low temperatures. However the alpha lifetime decay may be ...
2009 / S. Eliezer, J.M. Martinez Val, M. Piera