Study of the Reaction $np\to np{\pi }^{+}{\pi }^{-}$ at Intermediate Energies

Abstract

The reaction $np\to np{\pi }^{+}{\pi }^{-}$ was studied at the various momenta of incident neutrons. It was shown that the characteristics of the reaction at the momenta above 3 GeV/c could be described by the model of reggeized $\pi$ exchange (OPER). At the momenta below 3 GeV/c, it was necessary to use additionally the mechanism of one baryon exchange (OBE).

Comments: 10 pages, 13 figures; Presented at XX Baldin ISHEPP "Relativistic Nuclear Physics and Quantum Chromodynamics" JINR, Dubna, Russia, Sept.-Oct., 2010