Phys. Rev. Lett.
76,
2021–2024
(1996)
Production of φ Mesons in Central 28Si+196Au Collisions at 14.6AGeV/c
Y. Akiba et al. (E-802 Collaboration)
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Y. Akiba6, D. Beavis2, P. Beery4, H. C. Britt9, B. Budick11, C. Chasman2, Z. Chen2, C. Y. Chi5,5b, Y. Y. Chu2, V. Cianciolo10, B. A. Cole5,5b, J. B. Costales9, H. J. Crawford3, J. B. Cumming2, R. Debbe2, J. Engelage3, S. Y. Fung4, M. Gonin2, S. Gushue2, H. Hamagaki6, O. Hansen2, R. S. Hayano12, S. Hayashi2, S. Homma6, H. Kaneko7, J. Kang4, S. Kaufman1, W. L. Kehoe10, K. Kurita13, R. J. Ledoux10, M. J. Levine2, Y. Miake13, D. P. Morrison10, R. J. Morse10, B. Moskowitz2, S. Nagamiya5,5b, M. N. Namboodiri9, T. K. Nayak5,5b, J. Olness2, C. G. Parsons10, L. P. Remsberg2, D. Roehrich2, P. Rothschild10, H. Sakurai12, T. C. Sangster9, R. Seto4, R. Soltz10, P. Stankus5,5b, S. G. Steadman10, G. S. F. Stephans10, T. Sung10, Y. Tanaka8, M. J. Tannenbaum2, J. Thomas9, S. Tonse9, J. H. Van Dijk2, F. Videbæk2, O. Vossnack5,5b, V. Vutsadakis10, F. Q. Wang5,5b, Y. Wang5,5b, H. E. Wegner2, D. S. Woodruff10, Y. D. Wu5,5b, X. Yang5,5b, D. Zachary10, and W. A. Zajc5,5b (E-802 Collaboration)
1Argonne National Laboratory, Argonne, Illinois 60439-4843 2Brookhaven National Laboratory, Upton, New York 11973 3Space Sciences Laboratory, University of California, Berkeley, California 94720 4University of California, Riverside, California 92507 5Columbia University, New York, New York 10027 5band Nevis Laboratories, Irvington, New York 10533 6Institute for Nuclear Study, University of Tokyo, Tokyo 188, Japan 7Kyoto University, Sakyo-Ku, Kyoto, 606, Japan 8Kyushu University, Fukuoka 812, Japan 9Lawrence Livermore National Laboratory, Livermore, California 94550 10Massachusetts Institute of Technology, Cambridge, Massachusetts 02139 11New York University, New York, New York 10003 12Department of Physics, University of Tokyo, Tokyo 113, Japan 13University of Tsukuba, Tsukuba, Ibaraki 305, Japan
Received 13 October 1995; published in the issue dated 18 March 1996
Production of the φ meson in central Si+Au collisions has been measured by E859 at the Brookhaven Alternating Gradient Synchrotron by selecting events with identified K+K- pairs. The mass and width of the φ, obtained from the invariant mass distribution of kaon pairs, are consistent with those of free φ mesons. The transverse mass and rapidity distributions are presented. The inverse slope parameter for an exponential fit to the invariant transverse mass distribution is 179±10±17MeV.
© 1996 The American Physical Society
URL:
http://link.aps.org/doi/10.1103/PhysRevLett.76.2021
DOI:
10.1103/PhysRevLett.76.2021
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