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Inclusive Λ and {Mathematical expression} Production in K+p interactions at 70 GeV/c

par Barth, Marie ;De Clercq, Catherine;de Wolf, Els;Dumont, Jean-Jacques ;Johnson, Denis;Lemonne, Jacques ;Peeters, Philippe ; [et al.]
Référence Zeitschrift für Physik. C, Particles and fields, 10, 3, page (205-213)
Publication Publié, 1981-09

Article révisé par les pairs

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Résumé :

Inclusive and semi-inclusive production of Λ and {Mathematical expression} in K+p interactions is studied at an incident momentum of 70 GeV/c. Cross sections and single particle distributions are presented and compared with data at lower energies. Scaling is observed between 32 and 70 GeV/c in the Feynman x variable in the target and the beam fragmentation regions for Λ and {Mathematical expression} inclusive production respectively. An increase of Λ ( {Mathematical expression}) production is observed in the beam (target) fragmentation regions, whereas the data at 70 and 32 GeV/c are reasonably close in the central region. The dependence of the Λ( {Mathematical expression}) polarization as a function of x is measured and found to be in general agreement with the results at 32 GeV/c. The (Λ {Mathematical expression}) pair production cross section increases significantly from 32 to 70 GeV/c. The Λ and {Mathematical expression} production associated with an identified proton is also studied. © 1981 Springer-Verlag.