Inclusive dielectron production in proton-proton collisions at 2.2 GeV beam energy

G Agakishiev,I Iori,A Dybczak,B Sailer,J Friese,S Spataro,P Zumbruch,C Sturm,E Morinière,O Pechenova,M Gumberidze,A Ivashkin,M Böhmer,M Destefanis,H Tsertos,E Schwab,P Salabura,A Sadovsky,R Holzmann,K Teilab,V Wagner,V Pechenov,S Yurevich,B Michalska,C Müntz,B Ramstein,R Bassini,A Rustamov,I Fröhlich,T Hennino,L Naumann,J A Garzón,M Traxler,B W Kolb,F Dohrmann,J Markert,T Christ,P Cabanelas,V Metag,B Spruck,C Gilardi,T Galatyuk,H Bokemeyer,L Maier,D González-Díaz,W Kühn,A Tarantola,J Wüstenfeld,Yu G Sobolev,J Pietraszko,H Ströbele,J L Boyard,Tomasz Wójcik ,R Gernhäuser,S Lang,R Kötte ,Y Pachmayer ,A Bałanda ,A Schmah,P Finocchiaro,K Lapidus,I Köenig ,L Fabbietti,Y Zanevsky,J Stroth,A Toia,R Trębacz ,A Kożuch ,M Golubeva,T Pérez Cavalcanti ,T Liu,W Przygoda,F Křížek ,V Pospíšil ,C Münch,M C Sanchez ,А Куглер ,A Ierusalimov,S Chernenko,A Kurepin,T Eberl,K Kanaki,F Guber,M Roy‐Stéphan ,A Reshetin,W Koenig,J Otwinowski,T Karavicheva,O Fateev,P Tlustý ,H Álvarez‐Pol ,M Jurkovič ,J Mousa,B Kämpfer,M Wiśniowski

doi:10.1103/physrevc.85.054005

Inclusive dielectron production in proton-proton collisions at 2.2 GeV beam energy

G Agakishiev, I Iori + Show 93 more

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https://doi.org/10.1103/physrevc.85.054005

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Journal: Physical review. C	Publication Date: May 25, 2012
Citations: 26	License type: other-oa

#High Acceptance DiElectron Spectrometer #Production In Proton-proton Collisions + Show 8 more

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Abstract

Data on inclusive dielectron production are presented for the reaction p+p at 2.2 GeV measured with the High Acceptance DiElectron Spectrometer (HADES). Our results supplement data obtained earlier in this bombarding energy regime by DLS and HADES. The comparison with the 2.09 GeV DLS data is discussed. The reconstructed e+e- distributions are confronted with simulated pair cocktails, revealing an excess yield at invariant masses around 0.5 GeV/c2. Inclusive cross sections of neutral pion and eta production are obtained.

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