Single-pion production in proton-proton collisions at 1.25 GeV: measurements by HADES and a PWA

Witold Przygoda

doi:10.1051/epjconf/20148102014

EPJ

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Proceedings

Open Access

EPJ Web of Conferences 81, 02014 (2014)
https://doi.org/10.1051/epjconf/20148102014

Single-pion production in proton-proton collisions at 1.25 GeV: measurements by HADES and a PWA

Witold Przygoda^a for the HADES Collaboration

Smoluchowski Institute of Physics, Jagiellonian University, 30-059 Krakow, Poland

^a e-mail: witold.przygoda@uj.edu.pl

Published online: 26 November 2014

Abstract

We report on the single-pion production in proton-proton collisions at a kinetic energy of 1.25 GeV based on data measured with HADES. Exclusive channels npπ⁺ and ppπ⁰ were studied simultaneously. The parametrization of production cross sections of the one-pion final states by means of the resonance model has been obtained. Independently, the extraction of the leading partial waves in the data were analyzed within the framework of the partial wave analysis (PWA). Contributions for the production of ∆(1232) and N(1440) intermediate states have been deduced.

© Owned by the authors, published by EDP Sciences, 2014

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