Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- University of BonnDE1.5k papers
- University of OxfordGB1.5k papers
- Lawrence Berkeley National LaboratoryUS1.5k papers
- Michigan State UniversityUS1.5k papers
- Stony Brook UniversityUS1.5k papers
- University of WuppertalDE1.5k papers
- The Ohio State UniversityUS1.5k papers
- Centre National de la Recherche ScientifiqueFR1.5k papers
- Stockholm UniversitySE1.4k papers
- Johannes Gutenberg University MainzDE1.4k papers
- Uppsala UniversitySE1.4k papers
- University of ManchesterGB1.4k papers
52 papers · 1 filter
Fixed Number and Quantum Size Effects in Nanoscale Superconductors
K. Tanaka, F. Marsiglio
In recent experiments on nanoscale Al particles, whose electron number was fixed by charging effects, a ``negative gap'' was observed in particles with an odd number of electrons.…
The AdS/CFT Correspondence Conjecture and Topological Censorship
G. Galloway, K. Schleich, D. Witt +1
In gr-qc/9902061 it was shown that (n+1)-dimensional asymptotically anti-de-Sitter spacetimes obeying natural causality conditions exhibit topological censorship. We use this fact…
Weak axial exchange currents for the Bethe-Salpeter equation
F. C. Khanna, E. Truhlik
We construct weak axial one-boson exchange currents for the Bethe-Salpeter equation, starting from chiral Lagrangians of the N-Δ(1236)-pi-rho-a_1-omega system. The currents fulfil…
Orthogonality Effects in Relativistic Models of Nucleon Knockout Reactions
J. I. Johansson, H. S. Sherif
We study the effect of wave function orthogonality in the relativistic treatment of the nucleon removal reactions (gamma, p) and (e, e' p). The continuum wave function describing t…
Electroweak Baryogenesis in a Cold Universe
Raghavan Rangarajan, Supratim Sengupta, Ajit M. Srivastava +1
We discuss the possibility of generating the baryon asymmetry of the Universe when the temperature of the Universe is much below the electroweak scale. In our model the evaporation…
Measurement of Longitudinal Spin Transfer to Lambda Hyperons in Deep-Inelastic Lepton Scattering
HERMES Collaboration, A. Airapetian
Spin transfer in deep-inelastic Lambda electroproduction has been studied with the HERMES detector using the 27.6 GeV polarized positron beam in the HERA storage ring. For an avera…
Nuclear Effects on R = sigma_L / sigma_T in Deep-Inelastic Scattering
K. Ackerstaff
Cross section ratios for deep-inelastic scattering from 14N and 3He with respect to 2H have been measured by the HERMES experiment at DESY using a 27.5 GeV positron beam. The data…
Measurement of the W+W-gamma Cross-section and First direct Limits on Anomalous Electroweak Quartic Gauge Couplings
The OPAL collaboration, G. Abbiendi
A study of W+W- events accompanied by hard photon radiation produced in e+e- collisions at LEP is presented. Events consistent with two on-shell W-bosons and an isolated photon are…
Observation of a Single-Spin Azimuthal Asymmetry in Semi-Inclusive Pion Electro-Production
A. Airapetian
Single-spin asymmetries for semi-inclusive pion production in deep-inelastic scattering have been measured for the first time. A significant target-spin asymmetry of the distributi…
Two-dimensional effective action for matter fields coupled to the dilaton
Yu. V. Gusev, A. I. Zelnikov
We revise the calculation of the one-loop effective action for scalar and spinor fields coupled to the dilaton in two dimensions. Applying the method of covariant perturbation theo…
Comments on `` Black Hole Entropy from Conformal Field Theory in Any Dimension ''
Mu-In Park, Jeongwon Ho
In a recent letter, Carlip proposed a generalization of the Brown-Henneaux-Strominger construction to any dimension. We present two criticisms about his formulation.
Integers in the open string
T. Gannon
We show that the of Pradisi-Sagnotti-Stanev are indeed integers, and we prove a conjecture of Borisov-Halpern-Schweigert. We indicate some of the special features which…
Identical Relations among Transverse Parts of Variant Green Functions and the Full Vertices in Gauge Theories
Han-xin He
The identical relations among the transverse parts of variant vertex functions are derived by computing the curl of the time-ordered products of three-point Green functions involvi…
Helicity and partial wave amplitude analysis of D -> K^* ρdecay
El hassan El aaoud, A. N. Kamal
We have carried out an analysis of helicity and partial-wave amplitudes for the process D -> K^* ρin the factorization approximation using several models for the form factors. All…
Resonant final-state interactions in D^0 -> \bar{K}^{0} η, \bar{K}^{0} η' Decay
El aaoud El hassan, A. N. Kamal
We have investimated the effect of the isospin 1/2, J^P = 0^+ resonant state K^*_0(1950) on the decays D^0 ->\bar{K}^{0}ηand D^0 ->\bar{K}^0 η' as a function of the branching ratio…
The Dimensional-Reduction Anomaly
V. Frolov, P. Sutton, A. Zelnikov
In a wide class of D-dimensional spacetimes which are direct or semi-direct sums of a (D-n)-dimensional space and an n-dimensional homogeneous ``internal'' space, a field can be de…
Generalized Invariants and Quantum Evolution of Open Fermionic System
S. P. Kim, A. E. Santana, F. C. Khanna
Open systems acquire time-dependent coupling constants through interaction with an external field or environment. We generalize the Lewis-Riesenfeld invariant theorem to open syste…
Statistical Mechanics of Charged Black Holes in Induced Einstein-Maxwell Gravity
V. P. Frolov, D. V. Fursaev
The statistical origin of the entropy of charged black holes in models of induced Einstein-Maxwell gravity is investigated. The constituents inducing the Einstein-Maxwell action ar…
Chaotic Scattering and Capture of Strings by Black Hole
Andrei V. Frolov, Arne L. Larsen
We consider scattering and capture of circular cosmic strings by a Schwarzschild black hole. Although being a priori a very simple axially symmetric two-body problem, it shows all…
Parametric Resonance For Complex Fields
Rouzbeh Allahverdi, Bruce A. Campbell, R. H. A. David Shaw
Recently, there have been studies of parametric resonance decay of oscillating real homogeneous cosmological scalar fields, in both the narrow-band and broad-band case, primarily w…
Meson - nucleon vertex form factors at finite temperature
F. C. Khanna, A. M. Rakhimov, U. T. Yakhshiev
In this paper the dependence of meson-nucleon-nucleon vertex form factors is studied as a function of termperature. The results are obtained starting from a zero temperature Bonn p…
Continuous Self-Similarity Breaking in Critical Collapse
Andrei V. Frolov
This paper studies near-critical evolution of the spherically symmetric scalar field configurations close to the continuously self-similar solution. Using analytic perturbative met…
A reliable Pade analytical continuation method based on a high accuracy symbolic computation algorithm
K. S. D. Beach, R. J. Gooding, F. Marsiglio
We critique a Pade analytic continuation method whereby a rational polynomial function is fit to a set of input points by means of a single matrix inversion. This procedure is acco…
Where is 99% of the condensation energy of Tl_2Ba_2CuO_y coming from?
J. E. Hirsch, F. Marsiglio
Anderson's interlayer tunneling model can account for up to 1% of the condensation energy of Tl_2Ba_2CuO_y. Here we account for the remaining 99%. We predict an in-plane kinetic en…