arXiv subjects

Sasa Ceci

Publications and source records attributed to Sasa Ceci.

4 recordsLinked to original sources

arXiv2006

Multichannel Anomaly of the Resonance Pole Parameters Resolved

Inspired by anomalies which the standard scattering matrix pole-extraction procedures have produced in a mathematically well defined coupled-channel model, we have developed a new method based solely on the assumption of partial-wave analyticity. The new method is simple and applicable not only to theoretical predictions but to the empirical partial-wave data as well. Since the standard pole-extraction procedures turn out to be the lowest-order term of the proposed method the anomalies are understood and resolved.

hep-ph↗

arXiv2003

Eta Production in the pp Scattering

Total cross section for pp->pp eta process has been calculated in meson exchange model. Eta production T-matrices are from our PWA. Initial and final state interactions are disregarded for the moment, due to large uncertainties. Preliminary results do not show rho meson exchange dominance.

nucl-th↗

arXiv2001

Detailed analysis of eta production in proton-proton collisions

The check whether the presently available multiresonance coupled channel analyses can explain the more complex processes is made. The process chosen is a well measured proces of eta production in proton proton collisions.

nucl-th↗

arXiv2000

Eta Production in Hadronic Interactions

A short, and definitely not a complete representation of ηproduction processes on hadrons is given. First of all, the different ways of obtaining the πN \to ηN and πN \to ηN amplitudes are presented. After that, an overview of results obtained using these amplitudes as input for calculating processes like: NN \to ηNN, pd \to η^{3}He, πd \to ηNN and ηd, η^{3}He and η^{4}He as well as η-light nuclei bond states, will be given. The experimental and theoretical results will be reviewed. The opened problems and the way how to solve them will be presented.

nucl-th↗