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Study of inclusive production of π± and protons in {Mathematical expression}p interactions at 32 GeV/c

par Vlasov, E.V. E.V.;Babinstev, V.V. V.V.;Bumazhnov, V.;Chekulaev, S.;Khromova, G.N. G.N.;Kotova, A.I. A.I.;Moiseev, A.;Ukhanov, Mikhail;Saricheva, L.I. L.I.;Smirnova, Lidia L.N.;Boos, E.G. E.G.;Jautykov, B.O. B.O.;Jabiol, M.A. M.A.;Louedec, C.;Prevost, Jean-Marie ;Hanton, J.;Kesteman, José;Poiret, Chantal;Barth, Marie ;Dumont, Jean-Jacques ;Van Immerseel, M.
Référence Zeitschrift für Physik. C, Particles and fields, 13, 2, page (95-111)
Publication Publié, 1982-06

Article révisé par les pairs

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Résumé :

Results are presented on the inclusive production of π± mesons and protons in {Mathematical expression}p interactions at an incident antiproton momentum of 32 GeV/c in the MIRABELLE bubble chamber, based on a sample of 55,000 inelastic events. The spectra of π+(π-) and p( {Mathematical expression}) are separated in the whole kinematically admitted region of phase space by a statistical method. The semi-inclusive and inclusive cross sections and the main average characteristics of π and p production are calculated. The invariant differential cross sections are studied as functions of the Fevnman scaling variable x, the rapidity and the transverse momentum. The x distribution of π± mesons in the proton fragmentation region does not show any significant contribution from quark exchange or annihilation processes. A possible contribution of hard quark scattering on mesons or baryons is observed for large transverse momenta. © 1982 Springer-Verlag.