268 citations · 3k across the 94 of their papers we have counts for
9 papers · 1 filter
Production of eta mesons in nucleon-nucleon collisions
V. Baru, A. M. Gasparyan, J. Haidenbauer +3
A microscopic calculation of near-threshold eta-meson production in the reaction NN -> NNeta is presented. It is assumed that the eta meson is produced via direct emission and via…
Meson model for f_0(980) production in peripheral pion-nucleon reactions
F. P. Sassen, S. Krewald, J. Speth
The Juelich model for pion-pion-scattering, based on an effective meson-meson Lagrangian is applied to the analysis of the S-wave production amplitudes derived from the BNL E852 ex…
Perturbative QCD versus pion exchange and hadronic FSI effects in the gamma gamma --> pi^+ pi^- reaction
A. Szczurek, J. Speth
The interplay of pQCD, pion exchange and FSI effects is studied for the gamma gamma --> pi^+ pi^- reaction in the region of 2 GeV < W_{gamma gamma} < 6 GeV. We find strong interfer…
Photoproduction of the Eta Meson from the Deuteron Near Threshold
Ch. Elster, A. Sibirtsev, S. Schneider +3
Very recent data for the reaction gamma{d} --> eta{np} are analyzed within a model that includes contributions from the impulse approximation and next order corrections due to the…
Pseudovector vs. pseudoscalar coupling in one-boson exchange NN potentials
G. Caia, J. W. Durso, Ch. Elster +3
We examine the effects of pseudoscalar and pseudovector coupling of the pi and eta mesons in one-boson exchange models of the NN interaction using two approaches: time-ordered pert…
Coherent photoproduction from nuclei and properties in nuclear matter
A. Sibirtsev, Ch. Elster, J. Speth
The coherent -meson photoproduction from nuclei is proposed as a phenomenological method to evaluate the momentum dependence of -meson mass shift and width in nuclear matter.…
Incoherent Eta Photoproduction from the Deuteron near Threshold
A. Sibirtsev, S. Schneider, Ch. Elster +3
Very recent data for the reaction gamma+d ->eta np, namely total cross sections, angular and momentum spectra, are analyzed within a model that includes contributions from the impu…
Aspects of a0-f0 mixing in the reaction pn->da0
A. E. Kudryavtsev, V. E. Tarasov, J. Haidenbauer +2
Some aspects of a0-f0 mixing effects in the reaction with perpendicular polarized proton beam are discussed. An angular--asymmetry parameter is defined t…
Eta Meson Production in NN Collisions
K. Nakayama, J. Speth, T. -S. H. Lee
Eta meson production in both proton-proton and proton-neutron collisions is investigated within a relativistic meson exchange model of hadronic interactions. It is found that the a…