Two-proton correlations from 14.6A GeV/c Si+Pb and 11.5A GeV/c Au+Au central collisions

J. Barrette, R. Bellwied, S. Bennett, R. Bersch, P. Braun-Munzinger, W. C. Chang, W. E. Cleland, M. Clemen, J. Cole, T. M. Cormier, Y. Dai, G. David, J. Dee, O. Dietzsch, M. Drigert, K. Filimonov, S. C. Johnson, S. Gilbert, J. R. Hall, T. K. HemmickN. Herrmann, B. Hong, C. L. Jiang, Y. Kwon, R. Lacasse, Q. Li, T. W. Ludlam, S. K. Mark, R. Matheus, S. McCorkle, J. T. Murgatroyd, D. Miśkowiec, E. O'Brien, S. Y. Panitkin, V. S. Pantuev, T. Piazza, M. Pollack, C. Pruneau, M. N. Rao, E. Reber, M. Rosati, J. Sheen, N. C. DaSilva, S. Sedykh, U. Sonnadara, J. Stachel, H. Takai, E. M. Takagui, S. Voloshin, T. Vongpaseuth, G. Wang, J. P. Wessels, C. L. Woody, N. Xu, Y. Zhang, Z. Zhang, C. Zou

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

Two-proton correlation functions have been measured in Si+Pb collisions at 14.6A GeV/c and Au+Au collisions at 11.5A GeV/c by the E814/E877 Collaboration. Data are compared with predictions of the transport model RQMD and the source size is inferred from this comparison. Our analysis shows that, for both reactions, the characteristic size of the system at freeze-out exceeds the size of the projectile, suggesting that the fireball created in the collision has expanded. For Au + Au reactions, the observed centrality dependence of the two-proton correlation function implies that more central collisions lead to larger source sizes.

Original languageEnglish
Article number054905
Pages (from-to)549051-549056
Number of pages6
JournalPhysical Review C - Nuclear Physics
Volume60
Issue number5
DOIs
Publication statusPublished - 1999 Nov

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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    Barrette, J., Bellwied, R., Bennett, S., Bersch, R., Braun-Munzinger, P., Chang, W. C., Cleland, W. E., Clemen, M., Cole, J., Cormier, T. M., Dai, Y., David, G., Dee, J., Dietzsch, O., Drigert, M., Filimonov, K., Johnson, S. C., Gilbert, S., Hall, J. R., ... Zou, C. (1999). Two-proton correlations from 14.6A GeV/c Si+Pb and 11.5A GeV/c Au+Au central collisions. Physical Review C - Nuclear Physics, 60(5), 549051-549056. [054905]. https://doi.org/10.1103/PhysRevC.60.054905