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

J Barrette,N Herrmann,K Jayananda,Y Zhang,S Mccorkle,J Dee,G Wang,G David,N Xu,D Lissauer,R Lacasse,O Dietzsch,S A Voloshin ,H Takai ,T M Cormier ,J T Mitchell ,N C Dasilva ,Deekshit Kumar ,T G Throwe ,R Majka ,D Kraus ,S Gilbert ,P Braun‐Munzinger ,F S Rotondo ,Moorthy S Muthuswamy ,Z Zhang ,E M Takagui ,D U J Sonnadara ,T K Hemmick ,J V Germani ,D Wolfe ,W Cleland ,E O’brien ,S K Mark ,R Bellwied ,T Ludlam ,S V Greene ,B Hong ,C L Woody ,M N Rao ,S Panitkin ,C Pruneau ,J R Hall ,G E Diebold ,W J Llope ,J Stachel ,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, N Herrmann + Show 45 more

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

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Journal: Physics Letters B	Publication Date: Jul 1, 1994
Citations: 25

Affiliation: McGill University, GSI Helmholtz Centre for Heavy Ion Research, University of Pittsburgh, Stony Brook University, Brookhaven National Laboratory, Universidade de São Paulo, Wayne State University, Yale University, University of New Mexico

#Two-pion Correlation Function #Pb Collisions + Show 8 more

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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.

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