/ nucl-th arXiv:1704.00311

Proton distributions in $dp$ dielectron production within Regge theory

Jerusalimov, A.P. (Dubna, JINR) ; Lykasov, G.I. (Dubna, JINR)

Pages: 11

Abstract: The processes of dielectron production in deuteron-proton collisions at intermediate incident deuteron beam energies are analyzed in the spectator model within the one-pion exchange reggeized approach. We focus mainly on the momentum and angle distributions of the proton-spectator and the proton emitted in quasi-free $NN$ processes at small angles in the laboratory frame. It is shown that the inclusion of many channels in quasi-free $NN$ interaction allows us to describe the HADES data quite satisfactorily at incident deuteron kinetic energies of about 2.5 GeV.

Note: 11 pages, 77 figures

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