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

0384713 - ÚJF 2013 RIV US eng J - Journal Article
Agakishiev, G. - Balanda, A. - Bokemeyer, H. - Finocchiaro, P. - Guber, F. - Gumberidze, M. - Karavicheva, T. - Křížek, Filip - Kugler, Andrej - Markert, J. - Pachmayer, Y.C. - Pechenova, O. - Pospíšil, Vladimír - Rustamov, A. - Sobolev, Yuri, G. - Strobele, H. - Tarantola, A. - Teilab, K. - Tlustý, Pavel - Wagner, Vladimír … Total 95 authors
Inclusive dielectron production in proton-proton collisions at 2.2 GeV beam energy.
Physical Review. C. Roč. 85, č. 5 (2012), s. 054005. ISSN 0556-2813
R&D Projects: GA MŠMT LC07050; GA AV ČR IAA100480803
Institutional support: RVO:61389005
Keywords : vector mesons * dense nuclear matter * dilepton production
Subject RIV: BG - Nuclear, Atomic and Molecular Physics, Colliders
Impact factor: 3.715, year: 2012

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 supplemented data obtained earlier in this bombarding energy regime with the dilepton spectrometer (DLS) and HADES. The comparison with the 2.09 GeV DLS data is discussed. The reconstructed e(+)e(-) pair distributions are confronted with simulations, revealing an excess yield at invariant masses around 0.5 GeV/c(2). Inclusive cross sections of neutral pion and eta production are obtained.
Permanent Link: http://hdl.handle.net/11104/0216997