Comparison of p+A and Si+Au collisions at 14.6 GeV/c

T. Abbott, Y. Akiba, D. Beavis, M. A. Bloomer, P. D. Bond, C. Chasman, Z. Chen, Y. Y. Chu, B. A. Cole, J. B. Costales, H. J. Crawford, J. B. Cumming, R. Debbe, J. Engelage, S. Y. Fung, L. Grodzins, S. Gushue, H. Hamagaki, O. Hansen, R. S. HayanoS. Hayashi, S. Homma, H. Z. Huang, Y. Ikeda, I. Juricic, J. Kang, S. Katcoff, S. Kaufman, K. Kimura, K. Kitamura, K. Kurita, R. J. Ledoux, M. J. Levine, Y. Miake, R. J. Morse, B. Moskowitz, S. Nagamiya, J. Olness, C. G. Parsons, L. P. Remsberg, H. Sakurai, M. Sarabura, A. Shor, P. Stankus, S. G. Steadman, G. S.F. Stephans, T. Sugitate, M. Tanaka, M. J. Tannenbaum, M. Torikoshi, J. H. Van Dijk, F. Videbaek, M. Vient, P. Vincent, V. Vutsadakis, H. E. Wegner, D. S. Woodruff, Y. D. Wu, W. Zajc

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Abstract

The production of ,K±,p has been measured in p+Be and p+Au collisions for comparison with central Si+Au collisions. The inverse slope parameters T0 obtained by an exponential fit to the invariant cross sections in transverse mass are found to be, T0p,K+,140-160 MeV in p+A collisions, whereas in central Si+Au collisions, T0p,K+200-220 MeV 140-160 MeV at midrapidity. The and K+ distributions are shifted backwards in p+Au compared with p+Be. A gradual increase of (dn/dy)K+ per projectile nucleon is observed from p+Be to p+Au to central Si+Au collisions, while pions show no significant increase.

Original languageEnglish
Pages (from-to)1567-1570
Number of pages4
JournalPhysical review letters
Volume66
Issue number12
DOIs
Publication statusPublished - 1991

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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