9.8k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Centre National de la Recherche ScientifiqueFR2.8k papers
- Institut National de Physique Nucléaire et de Physique des ParticulesFR2.3k papers
- European Organization for Nuclear ResearchCH2.3k papers
- ETH ZurichCH2.2k papers
- Rutherford Appleton LaboratoryGB2.1k papers
- Istituto Nazionale di Fisica Nucleare, Sezione di Roma IIT2.1k papers
- Istituto Nazionale di Fisica Nucleare, Sezione di BolognaIT2.1k papers
- Imperial College LondonGB2.1k papers
- University of BristolGB2.1k papers
- University of Maryland, College ParkUS2.1k papers
- Massachusetts Institute of TechnologyUS2k papers
- Istituto Nazionale di Fisica Nucleare, Sezione di GenovaIT2k papers
40 papers · 1 filter
Smeared and unsmeared chiral vertex operators
Florin Constantinescu, G"unter Scharf
We prove unboundedness and boundedness of the unsmeared and smeared chiral vertex operators, respectively. We use elementary methods in bosonic Fock space, only. Possible applicati…
Precision Measurements at The Higgs Resonance: A Probe of Radiative Fermion Masses
F. M. Borzumati, G. R. Farrar, N. Polonsky +1
The possibility of radiative generation of fermion masses from soft supersymmetry breaking chiral flavor violation is explored. Consistent models are identified and classified. Phe…
Heavy Baryon Chiral Perturbation Theory with Light Deltas
Thomas R. Hemmert, Barry R. Holstein, Joachim Kambor
We demonstrate how heavy mass methods, previously applied to chiral perturbation theory calculations involving the interactions of nucleons and pions, can be generalized to include…
The as an Effective Degree of Freedom in Chiral Perturbation Theory
Joachim Kambor
Heavy baryon chiral perturbation theory including spin 3/2 delta resonances as effective degrees of freedom is reviewed. The theory admits a systematic expansion in the small scale…
Non-Abelian Solitons in N=4 Gauged Supergravity and Leading Order String Theory
Ali H. Chamseddine, Mikhail S. Volkov
We study static, spherically symmetric, and purely magnetic solutions of the N=4 gauged supergravity in four dimensions. A systematic analysis of the supersymmetry conditions revea…
Relative torsion for representations in finite type Hilbert modules
D. Burghelea, L. Friedlander, T. Kappeler
For a closed manifold equipped with a Riemannian metric, a triangulation, a representation of its fundamental group on an Hilbert module of finite type (over of finite von Neumann…
The Membrane Model of Black Holes and Applications
Norbert Straumann
These lectures provide a detailed introduction to the electro- dynamics of black holes. A simplified derivation of the basic membrane equations for stationary, axisymmetric black h…
Photo-production of psi' Mesons at HERA
C. Adloff
Quasi-elastic (z >0.95) photo-production of psi' mesons has been observed at HERA for photon-proton centre-of-mass energies in the range 40 to 160 GeV. The psi' mesons were identif…
The DMO Sum Rule Revisited
Eugene Golowich, Joachim Kambor
We reconsider the DMO sum rule in light of our recent two-loop calculations of isospin and hypercharge vector and axialvector current propagators in chiral perturbation theory. A m…
Report of the Working Group on Goldstone Boson Production and Decay
J. Bijnens, G. Colangelo, G. D'Ambrosio +11
This is the summary of the working group on Goldstone Boson Production and Decay of the Chiral Dynamics Workshop in Mainz, September 1-5, 1997. For the production aspects we discus…
Gauge Independence of the S-Matrix in the Causal Approach
Andreas Aste, Michael D"utsch, G"unter Scharf
The gauge dependence of the time-ordered products for Yang-Mills theories is analysed in perturbation theory by means of the causal method of Epstein and Glaser together with pertu…
Microlensing results and the galactic models
F. De Paolis, Ph. Jetzer, G. Ingrosso
Microlensing results towards the LMC strongly depend on the properties of both the luminous and the dark matter distribution in the Galaxy. The two main sources of uncertainty come…
Two-loop Analysis of Axialvector Current Propagators in Chiral Perturbation Theory
Eugene Golowich, Joachim Kambor
We perform a calculation of the isospin and hypercharge axialvector current propagators to two loops in SU(3)xSU(3) chiral perturbation theory. A large number of order p^6 divergen…
Low Q^2 Jet Production at HERA and Virtual Photon Structure
C. Adloff
The transition between photoproduction and deep-inelastic scattering is investigated in jet production at the HERA ep collider, using data collected by the H1 experiment. Measureme…
Metal-Insulator Transition in the Two-Dimensional Hubbard Model at Half-Filling with Lifetime Effects within the Moment Approach
J. J. Rodríguez-Núñez, S. Schafroth
We explore the effect of the imaginary part of the self-energy, , having a single pole, , with spectral weight, , and quasi-particle lifet…
X-ray emission from dark clusters of MACHOs
F. De Paolis, G. Ingrosso, Ph. Jetzer +1
MACHOs (Massive Astrophysical Compact Halo Objects) - as discovered by microlensing experiments towards the LMC - provide a natural explanation for the galactic halo dark matter. A…
Compton Scattering and the Spin Structure of the Nucleon at Low Energies
Thomas R. Hemmert, Barry R. Holstein, Joachim Kambor +1
We analyze polarized Compton scattering which provides information on the spin-structure of the nucleon. For scattering processes with photon energies up to 100 MeV the spin-struct…
Microlensing implications for halo dark matter
F. De Paolis, Ph. Jetzer, G. Ingrosso +1
The observations of microlensing events in the Large Magellanic Cloud suggest that a sizable fraction ( 50%) of the galactic halo is in the form of MACHOs (Massive Astrophysi…
Proton-Antiproton Annihilation and Meson Spectroscopy with the Crystal Barrel
Claude Amsler
This report reviews the achievements of the Crystal Barrel experiment at the Low Energy Antiproton Ring (LEAR) at CERN. During seven years of operation Crystal Barrel has collected…
Rotating solitons and non-rotating, non-static black holes
O. Brodbeck, M. Heusler, N. Straumann +1
It is shown that the non-Abelian black hole solutions have stationary generalizations which are parameterized by their angular momentum and electric Yang-Mills charge. In particula…
Self-consistent calculation of particle-hole diagrams on the Matsubara frequency: FLEX approximation
J. J. Rodríguez-Núñez, S. Schafroth
We implement the numerical method of summing Green function diagrams on the Matsubara frequency axis for the fluctuation exchange (FLEX) approximation. Our method has previously be…
Non-Abelian BPS Monopoles in N=4 Gauged Supergravity
Ali H. Chamseddine, Mikhail S. Volkov
We study static, spherically symmetric, and purely magnetic solutions of SU(2) SU(2) gauge supergravity in four dimensions. A systematic analysis of the supersymmetry cond…
Experiences with the GTU grammar development environment
Martin Volk, Dirk Richarz
In this paper we describe our experiences with a tool for the development and testing of natural language grammars called GTU (German: Grammatik-Testumgebumg; grammar test environm…
Stationary perturbations and infinitesimal rotations of static Einstein-Yang-Mills configurations with bosonic matter
Othmar Brodbeck, Markus Heusler
Using the Kaluza-Klein structure of stationary spacetimes, a framework for analyzing stationary perturbations of static Einstein-Yang-Mills configurations with bosonic matter field…