### 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 language | English |
---|---|

Pages (from-to) | 1544-1552 |

Number of pages | 9 |

Journal | Physical Review C - Nuclear Physics |

Volume | 56 |

Issue number | 3 |

DOIs | |

Publication status | Published - 1997 Jan 1 |

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### All Science Journal Classification (ASJC) codes

- Nuclear and High Energy Physics

### Cite this

*Physical Review C - Nuclear Physics*,

*56*(3), 1544-1552. https://doi.org/10.1103/PhysRevC.56.1544

}

*Physical Review C - Nuclear Physics*, vol. 56, no. 3, pp. 1544-1552. https://doi.org/10.1103/PhysRevC.56.1544

**Two-particle rapidity correlations from the Bose-Einstein effect in central [Formula Presented]Si+Au collisions at [Formula Presented] GeV/[Formula Presented] and intermittency.** / 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.; Hamagaki, H.; Hansen, O.; Hayano, R. S.; Hayashi, S.; Homma, S.; Kaneko, H.; Kang, Ju Hwan; Kaufman, S.; Kehoe, W. L.; Kurita, K.; Ledoux, R. J.; Levine, M. J.; Miake, Y.; Morrison, D. P.; Morse, R. J.; Moskowitz, B.; Nagamiya, S.; Namboodiri, M. N.; Nayak, T. K.; Olness, J.; Parsons, C. G.; Remsberg, L. P.; Roehrich, D.; Rothschild, P.; Sakurai, H.; Sangster, T. C.; Seto, R.; Soltz, R.; Stankus, P.; Steadman, S. G.; Stephans, G. S.F.; Sung, T.; Tanaka, Y.; Tannenbaum, M. J.; Thomas, J.; Tonse, S.; van Dijk, J. H.; Videbæk, F.; Vossnack, O.; Vutsadakis, V.; Wang, F. Q.; Wang, Y.; Wegner, H. E.; Woodruff, D. S.; Wu, Y. D.; Yang, X.; Zachary, D.; Zajc, W. A.

Research output: Contribution to journal › Article

TY - JOUR

T1 - Two-particle rapidity correlations from the Bose-Einstein effect in central [Formula Presented]Si+Au collisions at [Formula Presented] GeV/[Formula Presented] and intermittency

AU - Akiba, Y.

AU - Beavis, D.

AU - Beery, P.

AU - Britt, H. C.

AU - Budick, B.

AU - Chasman, C.

AU - Chen, Z.

AU - Chi, C. Y.

AU - Chu, Y. Y.

AU - Cianciolo, V.

AU - Cole, B. A.

AU - Costales, J. B.

AU - Crawford, H. J.

AU - Cumming, J. B.

AU - Debbe, R.

AU - Engelage, J.

AU - Fung, S. Y.

AU - Gonin, M.

AU - Gushue, S.

AU - Hamagaki, H.

AU - Hansen, O.

AU - Hayano, R. S.

AU - Hayashi, S.

AU - Homma, S.

AU - Kaneko, H.

AU - Kang, Ju Hwan

AU - Kaufman, S.

AU - Kehoe, W. L.

AU - Kurita, K.

AU - Ledoux, R. J.

AU - Levine, M. J.

AU - Miake, Y.

AU - Morrison, D. P.

AU - Morse, R. J.

AU - Moskowitz, B.

AU - Nagamiya, S.

AU - Namboodiri, M. N.

AU - Nayak, T. K.

AU - Olness, J.

AU - Parsons, C. G.

AU - Remsberg, L. P.

AU - Roehrich, D.

AU - Rothschild, P.

AU - Sakurai, H.

AU - Sangster, T. C.

AU - Seto, R.

AU - Soltz, R.

AU - Stankus, P.

AU - Steadman, S. G.

AU - Stephans, G. S.F.

AU - Sung, T.

AU - Tanaka, Y.

AU - Tannenbaum, M. J.

AU - Thomas, J.

AU - Tonse, S.

AU - van Dijk, J. H.

AU - Videbæk, F.

AU - Vossnack, O.

AU - Vutsadakis, V.

AU - Wang, F. Q.

AU - Wang, Y.

AU - Wegner, H. E.

AU - Woodruff, D. S.

AU - Wu, Y. D.

AU - Yang, X.

AU - Zachary, D.

AU - Zajc, W. A.

PY - 1997/1/1

Y1 - 1997/1/1

N2 - 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.

AB - 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.

UR - http://www.scopus.com/inward/record.url?scp=0031510702&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0031510702&partnerID=8YFLogxK

U2 - 10.1103/PhysRevC.56.1544

DO - 10.1103/PhysRevC.56.1544

M3 - Article

VL - 56

SP - 1544

EP - 1552

JO - Physical Review C - Nuclear Physics

JF - Physical Review C - Nuclear Physics

SN - 0556-2813

IS - 3

ER -