Diffraction dissociation of neutrons into (p π−) on protons in the momentum range 35 to 65 GeV/ c

Abstract

The diffraction dissociation reaction n + p → (p π −) + p was studied at the Serpukhov accelerator neutron beam in the momentum range 35–65 GeV/ c in an electronics experiment. The differential cross sections of the reaction are analysed and presented in the five-dimensional phase space (p n , m ∗, t, cosθ ∗, φ ∗) . The backward peak observed in the distribution over if cosθin GJ ∗ in the Gottfried-Jackson frame of if(pπ) is interpreted as a baryon-exchange effect. The angular distribution of the (p π −) system is compared with Deck-type models.