Physical sciences topic list of research papers
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Theory of electronic states and direct light absorption in the biconical (superellipsoidal) quantum dot2016 / A A Tshantshapanyan, K G Dvoyan, B Vlahovic
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Effective gluon interactions in the colour superconductive phase of two flavor QCD
Abstract The gluon self-energies and dispersion laws in the color superconducting phase of QCD with two massless flavors are calculated using the effective theory near the Fermi surface. These quantities are calculated at zero temperature for all...
2002 / R Casalbuoni, R Gatto, M Mannarelli, G Nardulli -
Gravitational conformal invariance and coupling constants in Kaluza–Klein theory
Abstract We introduce a generalized gravitational conformal invariance in the context of non-compactified 5D Kaluza–Klein theory. It is done by assuming the 4D metric to be dependent on the extra non-compactified dimension. It is then shown that the ...
2002 / F. Darabi, P.S. Wesson -
Non-perturbative singularity structure of gluon and quark propagators
Abstract A gauge invariant, non-local observable is constructed in lattice pure gauge theory, which is identical to the gluon propagator in a particular gauge. The transfer matrix formalism is used to show that this correlator decays exponentially...
2002 / Owe Philipsen -
Improved constraints on wimps from the international germanium experiment IGEX
Abstract One IGEX 76Ge double-beta decay detector is currently operating in the Canfranc Underground Laboratory in a search for dark matter WIMPs, through the Ge nuclear recoil produced by the WIMP elastic scattering. A new exclusion plot, σ(m), has ...
2002 / A. Morales, C.E. Aalseth, F.T. Avignone, R.L. Brodzinski, S. Cebrián, et al. -
Constraints on neutrino–photon interactions from rare Z decays
Abstract It is shown that the rare decays Z→ν ν ̄ γ and Z→ν ν ̄ γγ are useful to put...
2002 / F. Larios, M.A. Pérez, G. Tavares-Velasco -
Twisted vortices in a gauge field theory
Abstract We present a numerical construction of a straight but twisted line vortex in a gauge field theory model, describing the properties of a variety of physical systems including a charge neutral two-component plasma, a Gross–Pitaevskii...
2002 / M. Lübcke, S.M. Nasir, A.J. Niemi, K. Torokoff -
Generating the curvature perturbation without an inflaton
Abstract We present a mechanism for the origin of the large-scale curvature perturbation in our Universe by the late decay of a massive scalar field, the curvaton. The curvaton is light during a period of cosmological inflation, when it acquires a...
2002 / David H Lyth, David Wands -
Positivity constraints on photon structure functions
Abstract We investigate the positivity constraints for the structure functions of both virtual and real photon. From the Cauchy–Schwarz inequality we derive three positivity conditions for the general virtual photon case, which reduce, in the real...
2002 / Ken Sasaki, Jacques Soffer, Tsuneo Uematsu -
Testing asymptotic scaling and nonabelian symmetry enhancement
Abstract We determine some points on the finite size scaling curve for the correlation length in the two-dimensional O(3) and icosahedron spin models. The Monte Carlo data are consistent with the two models possessing the same continuum limit. The...
2002 / Adrian Patrascioiu, Erhard Seiler -
Irreversible thermodynamics of Poisson processes with reaction2002 / Vicenç Méndez, Joaquim Fort
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Characterization of thin superconducting YBACuO-films by Raman-spectroscopy2005 / R. Feile, U. Schmitt, P. Leiderer, J. Schubert, U. Poppe
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Quantifier Elimination and Provers Integration
Abstract We exploit quantifier elimination in the global design of combined decision and semi-decision procedures for theories over non-disjoint signatures, thus providing in particular extensions of Nelson-Oppen results. ...
2004 / Silvio Ghilardi -
Beam profiles of proton and carbon ions in the relativistic transparency regime2013 / D Jung, B J Albright, L Yin, D C Gautier, R Shah, et al.
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QCD sum rules for quark–gluon three-body components in the B meson
Abstract We discuss the QCD sum rule calculation of the heavy-quark effective theory parameters, λ ...
2013 / Tetsuo Nishikawa, Kazuhiro Tanaka -
Radiative nonrecoil nuclear finite size corrections of order to the hyperfine splitting of S-states in muonic hydrogen
Abstract On the basis of quasipotential method in quantum electrodynamics we calculate nuclear finite size radiative corrections of order α ( ...
2014 / R.N. Faustov, A.P. Martynenko, G.A. Martynenko, V.V. Sorokin -
Line bundle twisted chiral de Rham complex and bound states of D-branes on toric manifolds
Abstract In this note we calculate elliptic genus in various examples of twisted chiral de Rham complex on two-dimensional toric compact manifolds and Calabi–Yau hypersurfaces in toric manifolds. At first the elliptic genus is calculated for the...
2014 / S.E. Parkhomenko -
Infrastructure for Next Generation Experiments with Ultracold Neutrons
Abstract Next-generation experiments with ultracold neutrons are driven by the strength of the neutron sources as well as by the environmental conditions where the experiments are performed. Properly designed beam position infrastructure is...
2014 / P. Fierlinger -
An accurate bound on tensor-to-scalar ratio and the scale of inflation
Abstract In this paper we provide an accurate bound on primordial gravitational waves, i.e. tensor-to-scalar ratio (r) for a general class of single-field models of inflation where inflation occurs always below the Planck scale, and the field...
2014 / Sayantan Choudhury, Anupam Mazumdar -
Flat Higgs potential from Planck scale supersymmetry breaking
Abstract The observed Higgs boson mass poses a new puzzle in addition to the longstanding problem of the origin of the electroweak scale; the shallowness of the Higgs potential. The Higgs quartic coupling even seems to vanish at around the Planck...
2014 / Masahiro Ibe, Shigeki Matsumoto, Tsutomu T. Yanagida