Production of Sigma{\pm}pi?pK+ in p+p reactions at 3.5 GeV beam energy
G. Agakishiev, A. Balanda, D. Belver, A. Belyaev, J. C. Berger-Chen,, A. Blanco, M. Boehmer, J. L. Boyard, P. Cabanelas, E. Castro, S. Chernenko,, T. Christ M. Destefanis, F. Dohrmann, A. Dybczak, E. Epple, L. Fabbietti, O., Fateev, P. Finocchiaro, P. Fonte, J. Friese
TL;DR
This paper investigates the production mechanisms of Sigma-pi-pK+ particle quartets in proton-proton collisions at 3.5 GeV, analyzing resonance contributions and validating a simulation model against experimental data.
Contribution
It provides a detailed analysis of resonance contributions to Sigma-pi-pK+ production and validates a simulation model for acceptance correction in p+p reactions at 3.5 GeV.
Findings
Resonance contributions like Lambda(1405), Sigma(1385)^0, and others were evaluated.
The simulation model accurately reproduces angular distributions.
The model is suitable for acceptance corrections in similar experiments.
Abstract
We study the production of Sigma^+-pi^+-pK^+ particle quartets in p+p reactions at 3.5 GeV kinetic beam energy. The data were taken with the HADES experiment at GSI. This report evaluates the contribution of resonances like Lambda(1405$, Sigma(1385)^0, Lambda(1520), Delta(1232), N^* and K^*0 to the Sigma^+- pi^-+ p K+ final state. The resulting simulation model is compared to the experimental data in several angular distributions and it shows itself as suitable to evaluate the acceptance corrections properly.
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