Evidence for expansion of a hot fireball from two-pion correlations for Si + Pb collisions at AGS energy

J. Barrette; R. Bellwied; P. Braun-Munzinger; W. E. Cleland; T. M. Cormier; G. David; J. Dee; G. E. Diebold; O. Dietzsch; J. V. Germani; S. Gilbert; S. V. Greene; J. R. Hall; T. K. Hemmick; N. Herrmann; B. Hong; K. Jayananda; D. Kraus; D. Shiva Kumar; R. Lacasse; D. Lissauer; W. J. Llope; T. W. Ludlam; S. McCorkle; R. Majka; S. K. Mark; J. T. Mitchell; M. Muthuswamy; E. O'Brien; S. Panitkin; C. Pruneau; M. N. Rao; F. Rotondo; N. C. daSilva; U. Sonnadara; J. Stachel; H. Takai; E. M. Takagui; T. G. Throwe; S. Voloshin; G. Wang; D. Wolfe; C. L. Woody; N. Xu; Y. Zhang; Z. Zhang; C. Zou

doi:10.1016/0370-2693(94)91004-9

Evidence for expansion of a hot fireball from two-pion correlations for Si + Pb collisions at AGS energy

J. Barrette, R. Bellwied, P. Braun-Munzinger, W. E. Cleland, T. M. Cormier, G. David, J. Dee, G. E. Diebold, O. Dietzsch, J. V. Germani, S. Gilbert, S. V. Greene, J. R. Hall, T. K. Hemmick, N. Herrmann, B. Hong, K. Jayananda, D. Kraus, D. Shiva Kumar, R. LacasseD. Lissauer, W. J. Llope, T. W. Ludlam, S. McCorkle, R. Majka, S. K. Mark, J. T. Mitchell, M. Muthuswamy, E. O'Brien, S. Panitkin, C. Pruneau, M. N. Rao, F. Rotondo, N. C. daSilva, U. Sonnadara, J. Stachel, H. Takai, E. M. Takagui, T. G. Throwe, S. Voloshin, G. Wang, D. Wolfe, C. L. Woody, N. Xu, Y. Zhang, Z. Zhang, C. Zou

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Abstract

The two-pion correlation function has been measured for charged pions produced in central 14.6 A GeV/c Si + Pb collisions at the AGS. Data for like-sign pions show a clear quantum interference effect as expected for identical bosons. The experimental correlation function agrees well with that obtained for events generated by a cascade code (RQMD). The present data are consistent with a time-averaged rms freeze-out radius of 8.3 fm and a mean duration of pion emission of 9 fm/c. The system has expanded considerably before freeze-out.

Original language	English
Pages (from-to)	33-38
Number of pages	6
Journal	Physics Letters B
Volume	333
Issue number	1-2
DOIs	https://doi.org/10.1016/0370-2693(94)91004-9
Publication status	Published - 1994 Jul 28
Externally published	Yes

ASJC Scopus subject areas

Nuclear and High Energy Physics

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10.1016/0370-2693(94)91004-9

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Barrette, J., Bellwied, R., Braun-Munzinger, P., Cleland, W. E., Cormier, T. M., David, G., Dee, J., Diebold, G. E., Dietzsch, O., Germani, J. V., Gilbert, S., Greene, S. V., Hall, J. R., Hemmick, T. K., Herrmann, N., Hong, B., Jayananda, K., Kraus, D., Kumar, D. S., ... Zou, C. (1994). Evidence for expansion of a hot fireball from two-pion correlations for Si + Pb collisions at AGS energy. Physics Letters B, 333(1-2), 33-38. https://doi.org/10.1016/0370-2693(94)91004-9

Barrette, J, Bellwied, R, Braun-Munzinger, P, Cleland, WE, Cormier, TM, David, G, Dee, J, Diebold, GE, Dietzsch, O, Germani, JV, Gilbert, S, Greene, SV, Hall, JR, Hemmick, TK, Herrmann, N, Hong, B, Jayananda, K, Kraus, D, Kumar, DS, Lacasse, R, Lissauer, D, Llope, WJ, Ludlam, TW, McCorkle, S, Majka, R, Mark, SK, Mitchell, JT, Muthuswamy, M, O'Brien, E, Panitkin, S, Pruneau, C, Rao, MN, Rotondo, F, daSilva, NC, Sonnadara, U, Stachel, J, Takai, H, Takagui, EM, Throwe, TG, Voloshin, S, Wang, G, Wolfe, D, Woody, CL, Xu, N, Zhang, Y, Zhang, Z & Zou, C 1994, 'Evidence for expansion of a hot fireball from two-pion correlations for Si + Pb collisions at AGS energy', Physics Letters B, vol. 333, no. 1-2, pp. 33-38. https://doi.org/10.1016/0370-2693(94)91004-9

@article{c1b968271ecf4bccb574737e35f0b4b5,

title = "Evidence for expansion of a hot fireball from two-pion correlations for Si + Pb collisions at AGS energy",

abstract = "The two-pion correlation function has been measured for charged pions produced in central 14.6 A GeV/c Si + Pb collisions at the AGS. Data for like-sign pions show a clear quantum interference effect as expected for identical bosons. The experimental correlation function agrees well with that obtained for events generated by a cascade code (RQMD). The present data are consistent with a time-averaged rms freeze-out radius of 8.3 fm and a mean duration of pion emission of 9 fm/c. The system has expanded considerably before freeze-out.",

author = "J. Barrette and R. Bellwied and P. Braun-Munzinger and Cleland, {W. E.} and Cormier, {T. M.} and G. David and J. Dee and Diebold, {G. E.} and O. Dietzsch and Germani, {J. V.} and S. Gilbert and Greene, {S. V.} and Hall, {J. R.} and Hemmick, {T. K.} and N. Herrmann and B. Hong and K. Jayananda and D. Kraus and Kumar, {D. Shiva} and R. Lacasse and D. Lissauer and Llope, {W. J.} and Ludlam, {T. W.} and S. McCorkle and R. Majka and Mark, {S. K.} and Mitchell, {J. T.} and M. Muthuswamy and E. O'Brien and S. Panitkin and C. Pruneau and Rao, {M. N.} and F. Rotondo and daSilva, {N. C.} and U. Sonnadara and J. Stachel and H. Takai and Takagui, {E. M.} and Throwe, {T. G.} and S. Voloshin and G. Wang and D. Wolfe and Woody, {C. L.} and N. Xu and Y. Zhang and Z. Zhang and C. Zou",

note = "Funding Information: We thankt he AGS staff and, in particularD, r. H. Brown and W. McGahernf or theire xcellenst upport. We also thankR . Hutterf or tirelesste chnicasl upport. Drs. H. Sorgea ndS. Prattk indlyg aveu s permission to use theirc omputecro des.T his work was supported by the DoE, the NSE the NSERC (Canada)a, ndthe CNPq (Brazil).",

year = "1994",

month = jul,

day = "28",

doi = "10.1016/0370-2693(94)91004-9",

language = "English",

volume = "333",

pages = "33--38",

journal = "Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics",

issn = "0370-2693",

publisher = "Elsevier",

number = "1-2",

}

TY - JOUR

T1 - Evidence for expansion of a hot fireball from two-pion correlations for Si + Pb collisions at AGS energy

AU - Barrette, J.

AU - Bellwied, R.

AU - Braun-Munzinger, P.

AU - Cleland, W. E.

AU - Cormier, T. M.

AU - David, G.

AU - Dee, J.

AU - Diebold, G. E.

AU - Dietzsch, O.

AU - Germani, J. V.

AU - Gilbert, S.

AU - Greene, S. V.

AU - Hall, J. R.

AU - Hemmick, T. K.

AU - Herrmann, N.

AU - Hong, B.

AU - Jayananda, K.

AU - Kraus, D.

AU - Kumar, D. Shiva

AU - Lacasse, R.

AU - Lissauer, D.

AU - Llope, W. J.

AU - Ludlam, T. W.

AU - McCorkle, S.

AU - Majka, R.

AU - Mark, S. K.

AU - Mitchell, J. T.

AU - Muthuswamy, M.

AU - O'Brien, E.

AU - Panitkin, S.

AU - Pruneau, C.

AU - Rao, M. N.

AU - Rotondo, F.

AU - daSilva, N. C.

AU - Sonnadara, U.

AU - Stachel, J.

AU - Takai, H.

AU - Takagui, E. M.

AU - Throwe, T. G.

AU - Voloshin, S.

AU - Wang, G.

AU - Wolfe, D.

AU - Woody, C. L.

AU - Xu, N.

AU - Zhang, Y.

AU - Zhang, Z.

AU - Zou, C.

N1 - Funding Information: We thankt he AGS staff and, in particularD, r. H. Brown and W. McGahernf or theire xcellenst upport. We also thankR . Hutterf or tirelesste chnicasl upport. Drs. H. Sorgea ndS. Prattk indlyg aveu s permission to use theirc omputecro des.T his work was supported by the DoE, the NSE the NSERC (Canada)a, ndthe CNPq (Brazil).

PY - 1994/7/28

Y1 - 1994/7/28

N2 - The two-pion correlation function has been measured for charged pions produced in central 14.6 A GeV/c Si + Pb collisions at the AGS. Data for like-sign pions show a clear quantum interference effect as expected for identical bosons. The experimental correlation function agrees well with that obtained for events generated by a cascade code (RQMD). The present data are consistent with a time-averaged rms freeze-out radius of 8.3 fm and a mean duration of pion emission of 9 fm/c. The system has expanded considerably before freeze-out.

AB - The two-pion correlation function has been measured for charged pions produced in central 14.6 A GeV/c Si + Pb collisions at the AGS. Data for like-sign pions show a clear quantum interference effect as expected for identical bosons. The experimental correlation function agrees well with that obtained for events generated by a cascade code (RQMD). The present data are consistent with a time-averaged rms freeze-out radius of 8.3 fm and a mean duration of pion emission of 9 fm/c. The system has expanded considerably before freeze-out.

UR - http://www.scopus.com/inward/record.url?scp=0001793048&partnerID=8YFLogxK

U2 - 10.1016/0370-2693(94)91004-9

DO - 10.1016/0370-2693(94)91004-9

M3 - Article

AN - SCOPUS:0001793048

SN - 0370-2693

VL - 333

SP - 33

EP - 38

JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

IS - 1-2

ER -

Evidence for expansion of a hot fireball from two-pion correlations for Si + Pb collisions at AGS energy

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