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 Jan 1

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All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Cite this

Abbott, T., Akiba, Y., Beavis, D., Bloomer, M. A., Bond, P. D., Chasman, C., Chen, Z., Chu, Y. Y., Cole, B. A., Costales, J. B., Crawford, H. J., Cumming, J. B., Debbe, R., Engelage, J., Fung, S. Y., Grodzins, L., Gushue, S., Hamagaki, H., Hansen, O., ... Zajc, W. (1991). Comparison of p+A and Si+Au collisions at 14.6 GeV/c. Physical review letters, 66(12), 1567-1570. https://doi.org/10.1103/PhysRevLett.66.1567