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
- Heidelberg UniversityDE2.1k papers
- University of OxfordGB2k papers
- Commissariat à l'Énergie Atomique et aux Énergies AlternativesFR2k papers
- European Organization for Nuclear ResearchCH2k papers
- Institut National de Physique Nucléaire et de Physique des ParticulesFR2k papers
- Istituto Nazionale di Fisica Nucleare, Sezione di BolognaIT1.9k papers
- University of EdinburghGB1.9k papers
- The University of TokyoJP1.9k papers
- Ludwig-Maximilians-Universität MünchenDE1.9k papers
- University of ManchesterGB1.9k papers
- Institute of Nuclear Physics, Polish Academy of SciencesPL1.8k papers
53 papers · 1 filter
Nonvanishing tensor polarization of sea quarks in polarized deuterons
N. N. Nikolaev, W. Schaefer
We propose two new sources of a substantial tensor polarization of sea partons in the deuteron: the diffractive nuclear shadowing which depends on the alignment of nucleons in the…
On the cofinality of ultrapowers
Andreas Blass, Heike Mildenberger
All ultrafilters under consideration here are non-principal ultrafilters on the set omega of natural numbers. We are concerned with the possible cofinalities of ultrapowers of omeg…
Spectra of non-hermitian quantum spin chains describing boundary induced phase transitions
Ulrich Bilstein, Birgit Wehefritz
The spectrum of the non-hermitian asymmetric XXZ-chain with additional non-diagonal boundary terms is studied. The lowest lying eigenvalues are determined numerically. For the ferr…
Wakimoto realizations of current algebras: an explicit construction
Jan de Boer, Laszlo Feher
A generalized Wakimoto realization of can be associated with each parabolic subalgebra of a simple Lie algebra a…
Dissipation of Magnetic Fields in the Galactic Halo
F. Zimmer, H. Lesch, G. T. Birk
This paper shows that magnetic reconnection could be an important heating process in cosmic gases. In any volume where magnetized plasmas collide, the dissipation of magnetic energ…
Solutions of the boundary Yang-Baxter equation for ADE models
Roger E. Behrend, Paul A. Pearce
We present the general diagonal and, in some cases, non-diagonal solutions of the boundary Yang-Baxter equation for a number of related interaction-round-a-face models, including t…
Electromagnetic N- transition form factors in a covariant quark-diquark model
Volker Keiner
The electromagnetic N- transition form factors are calculated in the framework of a formally covariant constituent diquark model. As a spin-3/2 particle the is assumed to be…
Measurement of the proton and deuteron structure functions, F2p and F2d, and of the ratio sigma(L)/sigma(T)
The New Muon Collaboration
The muon-proton and muon-deuteron inclusive deep inelastic scattering cross sections were measured in the kinematic range 0.002 < x < 0.60 and 0.5 < Q2 < 75 GeV2 at incident muon e…
Renormalization of the three flavor Lagrangian in heavy baryon chiral perturbation theory
G. Müller, Ulf-G. Meißner
The complete renormalization of the generating functional for Green functions of quark currents between one--baryon states in three flavor heavy baryon chiral perturbation theory i…
Matrix Product Eigenstates for One-Dimensional Stochastic Models and Quantum Spin Chains
Klaus Krebs, Sven Sandow
We show that all zero energy eigenstates of an arbitrary --state quantum spin chain Hamiltonian with nearest neighbor interaction in the bulk and single site boundary terms, whi…
(0,2) Mirror Symmetry
Ralph Blumenhagen, Rolf Schimmrigk, Andreas Wisskirchen
We generalize the previously established (0,2) triality of exactly solvable models, Landau-Ginzburg theories and Calabi-Yau manifolds to a number of different classes of (0,2) comp…
Threshold kaon photo- and electroproduction in SU(3) baryon chiral perturbation theory
Sven Steininger, Ulf-G. Meißner
We calculate the processes in three flavor heavy baryon chiral perturbation theory to one loop. Some low--energy constants are fixed from single b…
The Presampler for the Forward and Rear Calorimeter in the ZEUS Detector
A. Bamberger
The ZEUS detector at HERA has been supplemented with a presampler detector in front of the forward and rear calorimeters. It consists of a segmented scintillator array read out wit…
Heterotic/Type II Duality in D=4 and String/String Duality
B. Hunt, M. Lynker, R. Schimmrigk
We discuss the structure of heterotic/type II duality in four dimensions as a consequence of string-string duality in six dimensions. We emphasize the new features in four dimensio…
The Quark Structure of Light Mesons
B. C. Metsch, H. R. Petry
We present the results of a covariant constituent quark model, based on the Bethe-Salpeter equation, where confinement is implemented by a string like linear potential explaining t…
Gauge parameter dependence and gauge invariance in the Abelian Higgs model
Rainer Haeussling, Elisabeth Kraus
We analyze gauge parameter dependence by using an algebraic method which relates the gauge parameter dependence of Green functions to an enlarged Slavnov-Taylor identity. In the co…
The standard model in the on-shell scheme
Elisabeth Kraus, Klaus Sibold
We outline the renormalization of the standard model to all orders of perturbation theory in a way which does not make essential use of a specific subtraction scheme but is based o…
The role of the pion cloud in the interpretation of the valence light-cone wavefunction of the nucleon
S. D. Bass, D. Schütte
The pion cloud renormalises the light-cone wavefunction of the nucleon which is measured in hard, exclusive photon-nucleon reactions. We discuss the leading twist contributions to…
What perturbs NGC 2188?
H. Domgorgen, M. Dahlem, R. -J. Dettmar
VLA HI observations of the dwarf irregular galaxy NGC 2188 show that the gas and stars have spatial distributions which are substantially different. One end of the optical disk is…
Globular cluster systems of early--type galaxies in Fornax
M. Kissler-Patig, S. Kohle, M. Hilker +3
We studied the properties of the globular cluster systems of five early--type galaxies in the Fornax galaxy cluster: NGC 1374, NGC 1379, NGC 1387, NGC 1427, and the central giant e…
Diffractive DIS from the Color Dipole BFKL Pomeron
N. N. Nikolaev, B. G. Zakharov, .
We review the recent progress in the theory of diffractive DIS, focusing on predictions of strong breaking of the Ingelman-Schlein-Regge factorization and the related breaking of t…
Observation of Events with an Energetic Forward Neutron in Deep Inelastic Scattering at HERA
ZEUS Collaboration, M. Derrick et al
In deep inelastic neutral current scattering of positrons and protons at the center of mass energy of 300 GeV, we observe, with the ZEUS detector, events with a high energy neutron…
Nucleon electroweak form factors: Analysis of their spectral functions
V. Bernard, N. Kaiser, Ulf-G. Meißner
We investigate the imaginary parts of the nucleon electromagnetic and axial form factors close to threshold in the framework of heavy baryon chiral perturbation theory. For the iso…
On Hyper Kähler manifolds associated to Lagrangean Kähler submanifolds of
Vicente Cortés
For any Lagrangean Kähler submanifold , there exists a canonical hyper Kähler metric on . A Kähler potential for this metric is given by the generali…