Semi-Inclusive Lambda and Kshort Production in p-Au Collisions at 17.5 GeV/c

Details Semi-Inclusive Lambda and Kshort Production in p-Au Collisions at 17.5 GeV/c Semi-Inclusive Lambda and Kshort Production in p-Au Collisions at 17.5 GeV/c

2000-03-31

arxiv.org/abs/nucl-ex/0003010v4

Phys.Rev.Lett.85:4868-4871,2000

Physics

Nuclear Physics

Nuclear Experiment

5 pages, 3 figures, formatted with RevTex, current version has enlarged figure catpions

Scientific paper

10.1103/PhysRevLett.85.4868

The first detailed measurements of the centrality dependence of strangeness production in p-A collisions are presented. Lambda and Kshort dn/dy distributions from 17.5 GeV/c p-Au collisions are shown as a function of "grey" track multiplicity and the estimated number of collisions, nu, made by the proton. The nu dependence of the Lambda yield deviates from a scaling of p-p data by the number of participants, increasing faster than this scaling for nu<=5 and saturating for larger nu. A slower growth in Kshort multiplicity with nu is observed, consistent with a weaker nu dependence of K-Kbar production than Y-K production.

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