Dielectron production in pion-nucleon reactions at intermediate energies

2017/05/21 by A. P. Ierusalimov, Ierusalimov, A. P., G. I. Lykasov +1
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #hep-ph

paper · pdf · doi:10.48550/arxiv.1705.07446

12 pages, 5 figures

arxiv created 2017/05/21 · arxiv updated 2017/05/23

Abstract

Dielectron production in the πN interaction at not large energies is studied. The dominant contribution of the Δ-isobar creation in the intermediate state at incident pion momenta of about 0.3-0.4 GeV/c is shown. The experimental distributions over the angle and effective mass M_e⁺e- of the e⁺e^- pair are described satisfactorily. This stimulated us to present theoretical predictions for the M_e⁺e- distribution in the process π^- p→ ne⁺e^- at different incident momenta, which could be verified, for example, by the HADES experiments.

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