120076725
Dependence of multiplicity and rapidity distributions on the number of projectile collisions in 200-GeV/c proton-nucleus interactions
Interactions of 200-GeV/c protons on hydrogen, neon, argon, and xenon were studied with a streamer-chamber spectrometer. The number of projectile collisions inside the nucleus and the number of secondary collisions in the intranuclear cascade were estimated. The dependence of multiplicity and rapidity distributions on the number of projectile collisions was analyzed. The predictions of the additive quark model were found to be in qualitative agreement with the results of the experiment.
123564276
Production of K∗(892) in K+N interactions at 3 GeV/c
We have studied the reactions K+d→K+π−pp,K+d→Koπopp,K+d→Koπ+pp, obtained from an exposure of the Saclay 81-cm bubble chamber filled with deuterium and exposed at CERN to a separated 3 GeV/c K+ beam. 
 
In reactions (1) and (2) there is abundant production of K∗0(892) and some production of K∗(1420). From the density matrix elements, it is found that K∗0(892) is produced mainly by pion exchange. The K∗(892) four-momentum-transfer distribution in reaction (1) agrees with the predictions of the OPE model, as modified by Durr and Pilkuhn. A marked asymmetry of the decay distribution of the K+π− system is observed and discussed in the framework of a unitarized Veneziano model. In reaction (3), on the other hand, the production of K∗+(892) and N∗+(1236) is found to proceed mainly by vector exchange.
124472433
Fermi-Dirac correlations in Lambda pairs in hadronic Z decays
188188770
The reaction k+ d ---> k0 p p at 4.6 gev/c
117777421
sigma- Production and decay properties in K-p --> sigma-pi+
117090913
sigma+/- lifetimes and longitudinal acceleration
15729032
Medium modifications of vector mesons
We construct a relativistic and unitary approach to pionand photon-nucleon scattering taking into account the inelastic π∆, ρN , ωN , ηN,KΛ,KΣ channels. Our scheme dynamically generates the sand d-wave nucleon resonances N(1535), N(1650), N(1520) and N(1700) and isobar resonances ∆(1620) and ∆(1700) in terms of quasilocal two-body interaction terms. We obtain a fair description of the experimental data relevant for slow vector-meson propagation in nuclear matter. The s-wave ρand ω-meson nucleon scattering amplitudes, which define the leading density modification of the ρand ω-meson spectral functions in nuclear matter, are predicted.
116925272
Phenomenology of Axial-Vector Mesons from an Extended Linear Sigma Model
We discuss the phenomenology of the axial-vector mesons within a three-flavour Linear Sigma Model containing scalar, pseudoscalar, vector and axial-vector degrees of freedom.
119310978
Role of Φ decays for K- yields in relativistic heavy-ion collisions
The production of strange mesons in collisions of Ar+KCl at a kinetic beam energy of 1.756A GeV is studied within a transport model of Boltzmann-Uehling-Uhlenbeck type. In particular, phi,K{sup +}, and K{sup -} yields and spectra are compared to the data measured recently by the HADES Collaboration and the phi yield measured previously by the FOPI Collaboration. Our results are in agreement with these data, thus presenting an interpretation of the subleading role of phi decays into K{sup -}'s and confirming the importance of the strangeness-exchange channels for K{sup -} production.
118085373
Eta, Eta' and eLSM
We discuss the eta-eta' mixing in the Extended Linear Sigma Model (eLSM).
119240638
Dilepton production in pion-nucleon collisions in an effective field theory approach
We present a model of electron-positron pair production in pion-nucleon collisions in the exclusive reaction \pi N -> Ne^+e^-. The model is based on an effective field theory approach, incorporating 16 baryon resonances below 2 GeV. Parameters of the model are fitted to pion photoproduction data. We present the resulting dilepton invariant mass spectra for \pi^- p collisions up to sqrt(s)=1.9 GeV center-of-mass collision energy. These results are meant to give predictions for the planned experiments at the HADES spectrometer in GSI, Darmstadt.