The study of the nuclear matter equation-of-state (EoS) is a relevant topic of modern nuclear
physics. It governs the behaviour of nuclear matter away from the normal conditions found in …

Studies of meson production at threshold in the hadron-hadron interaction began in the
fifties when sufficient energies of accelerated protons were available. A strong …

Using the dcQMD transport model, the isoscalar and isovector in-medium potentials of the Δ
(1232) baryon are studied and information regarding their effective strength is obtained from …

We describe a novel technique for comparing total cross sections for the reactions pp→
ppπ0, pp→ ppη, and pp→ ppη′ close to threshold. The initial and final state proton-proton …

Within the Transport Model Evaluation Project (TMEP), we present a detailed study of the
performance of different transport models in Sn+ Sn collisions at 270 A MeV, which are …

We evaluate the threshold matrix–element for the reaction pp→ pp π 0 in a fully relativistic
Feynman diagrammatic approach. We employ a simple effective range approximation to …

The production of the Λ-and Σ 0-hyperons has been measured via the pp→ pK+ Λ/Σ 0
reaction at the internal COSY-11 facility in the excess energy range between 14 and 60 …

We clarify under what circumstances the nucleon–nucleon final state interaction fixes the
energy dependence of the total cross-section for the reaction NN→ NNx close to production …

Within an effective Lagrangian model, we present calculations for cross sections of the
dilepton production in proton-proton and proton-neutron collisions at laboratory kinetic …

Taking advantage of both the high mass resolution of the COSY-11 detector and the high
energy resolution of the low-emittance proton beam of the cooler synchrotron COSY, we …