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

    Research output: Contribution to journalArticle

    Abstract

    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 (US)
    Pages (from-to)1544-1552
    Number of pages9
    JournalPhysical Review C - Nuclear Physics
    Volume56
    Issue number3
    DOIs
    StatePublished - 1997

    ASJC Scopus subject areas

    • Nuclear and High Energy Physics

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    Akiba, Y., Beavis, D., Beery, P., Britt, H. C., Budick, B., Chasman, C., Chen, Z., Chi, C. Y., Chu, Y. Y., Cianciolo, V., Cole, B. A., Costales, J. B., Crawford, H. J., Cumming, J. B., Debbe, R., Engelage, J., Fung, S. Y., Gonin, M., Gushue, S., ... Zajc, W. A. (1997). Two-particle rapidity correlations from the Bose-Einstein effect in central [Formula Presented]Si+Au collisions at [Formula Presented] GeV/[Formula Presented] and intermittency. Physical Review C - Nuclear Physics, 56(3), 1544-1552. https://doi.org/10.1103/PhysRevC.56.1544