Two-particle rapidity correlations from the Bose-Einstein effect in central [Formula Presented]Si+Au collisions at [Formula Presented] GeV/[Formula Presented] and intermittency

Y. Akiba, D. Beavis, P. Beery, H. C. Britt, B. Budick, C. Chasman, Z. Chen, C. Y. Chi, Y. Y. Chu, V. Cianciolo, B. A. Cole, J. B. Costales, H. J. Crawford, J. B. Cumming, R. Debbe, J. Engelage, S. Y. Fung, M. Gonin, S. Gushue, H. HamagakiO. Hansen, R. S. Hayano, S. Hayashi, S. Homma, H. Kaneko, J. Kang, S. Kaufman, W. L. Kehoe, K. Kurita, R. J. Ledoux, M. J. Levine, Y. Miake, D. P. Morrison, R. J. Morse, B. Moskowitz, S. Nagamiya, M. N. Namboodiri, T. K. Nayak, J. Olness, C. G. Parsons, L. P. Remsberg, D. Roehrich, P. Rothschild, H. Sakurai, T. C. Sangster, R. Seto, R. Soltz, P. Stankus, S. G. Steadman, G. S.F. Stephans, T. Sung, Y. Tanaka, M. J. Tannenbaum, J. Thomas, S. Tonse, J. H. van Dijk, F. Videbæk, O. Vossnack, V. Vutsadakis, F. Q. Wang, Y. Wang, H. E. Wegner, D. S. Woodruff, Y. D. Wu, X. Yang, D. Zachary, W. A. Zajc

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9 Citations (Scopus)


In previous work, the E802 Collaboration at the BNL-AGS used negative binomial distribution (NBD) fits to charged particle multiplicity distributions from central collisions of [Formula Presented]O+Cu at [Formula Presented] GeV/[Formula Presented] to derive the two-particle short-range rapidity correlation length and strength. These turned out to be much shorter and weaker than the values for hadron collisions, which led to a simple and elegant explanation of intermittency. In the present work, a direct measurement of the two-particle correlation of identified pions in the E802/E859 magnetic spectrometer is performed in the interval [Formula Presented] for central [Formula Presented]Si+Au collisions, both in terms of [Formula Presented], where [Formula Presented], and also in terms of [Formula Presented] and [Formula Presented], where [Formula Presented] and [Formula Presented] are the four-momentum, pseudorapidity, and rapidity of the pions. It is demonstrated that the two-pion correlation in rapidity (and pseudorapidity) is entirely due to the Bose-Einstein interference. The directly measured correlation length in both [Formula Presented] and [Formula Presented] is [Formula Presented] for two [Formula Presented], with strength [Formula Presented]%, in agreement with the previous E802 indirect measurements derived from the NBD analysis of intermittency.

Original languageEnglish
Pages (from-to)1544-1552
Number of pages9
JournalPhysical Review C - Nuclear Physics
Issue number3
Publication statusPublished - 1997

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics


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