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

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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http://hal.in2p3.fr/in2p3-00683228
Contributor : Sophie Heurteau <>
Submitted on : Wednesday, March 28, 2012 - 11:11:31 AM
Last modification on : Wednesday, September 16, 2020 - 4:08:31 PM

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G. Agakishiev, H. Alvarez-Pol, A. Balanda, R. Bassini, M. Böhmer, et al.. Inclusive dielectron production in proton-proton collisions at 2.2 GeV beam energy. Physical Review C, American Physical Society, 2012, 85, pp.054005. ⟨10.1103/PhysRevC.85.054005⟩. ⟨in2p3-00683228⟩

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