Analysis of pion production data measured by HADES in proton-proton collisions at 1.25 GeV

作者：Agakishiev G; Balanda A; Belver D; Belyaev A; Berger Chen J C; Blanco A; Boehmer M; Boyard J L; Cabanelas P; Chernenko S; Dybczak A; Epple E; Fabbietti L; Fateev O; Finocchiaro P; Fonte P; Friese J; Froehlich I; Galatyuk T; Garzon J A; Gernhaeuser R; Goebel K; Golubeva M; Gonzalez Diaz D; Guber F; Gumberidze M; Heinz T; Hennino T; Holzmann R; Ierusalimov A; Iori I; Ivashkin A; Jurkovic M; Kaempfer B; Karavicheva T

来源：European Physical Journal A, 2015, 51(10): 137.

DOI：10.1140/epja/i2015-15137-5

Baryon resonance production in proton-proton collisions at a kinetic beam energy of 1.25 GeV is investigated. The multi-differential data were measured by the HADES Collaboration. Exclusive channels with one pion in the final state (np pi(+) and pp pi(0)) were put to extended studies based on various observables in the framework of a one-pion exchange model and with solutions obtained within the framework of a partial wave analysis (PWA) of the Bonn-Gatchina group. The results of the PWA confirm the dominant contribution of the.(1232), yet with a sizable impact of the N(1440) and non-resonant partial waves.

• 出版日期2015-10-30