Bose-Einstein Correlations of Charged Pion Pairs in Au + Au Collisions at √sNN p = 200 GeV
Physical Review Letters Volume 93 Issue 15
Page 152302-1-152302-6
published_at 2004-10-08
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| File | |
| Title ( eng ) |
Bose-Einstein Correlations of Charged Pion Pairs in Au + Au Collisions at √sNN p = 200 GeV
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| Creator |
PHENIX Collaboration
Enokizono Akitomo
Hachiya Takashi
Kohama Takeshi
Nakamura Tomoaki
|
| Source Title |
Physical Review Letters
|
| Volume | 93 |
| Issue | 15 |
| Start Page | 152302-1 |
| End Page | 152302-6 |
| Abstract |
Bose-Einstein correlations of identically charged pion pairs were measured by the PHENIX experiment at midrapidity in Au + Au collisions at √sNN = 200 GeV. The Bertsch-Pratt radius parameters were determined as a function of the transverse momentum of the pair and as a function of the centrality of the collision. Using the standard core-halo partial Coulomb fits, and a new parametrization which constrains the Coulomb fraction as determined from the unlike-sign pion correlation, the ratio Rout/Rside is within 0.8–1.1 for 0.25 < 〈kT〉 < 1.2 GeV/c. The centrality dependence of all radii is well described by a linear scaling in N1/3part, and Rout/Rside for 〈kT〉~0.45 GeV/c is approximately constant at unity as a function of centrality.
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| Keywords |
heavy ion-nucleus reactions
pion production
pions
nuclear halos
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| Language |
eng
|
| Resource Type | journal article |
| Publisher |
American Physical Society
|
| Date of Issued | 2004-10-08 |
| Rights |
Copyright (c) 2004 The American Physical Society.
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| Publish Type | Version of Record |
| Access Rights | open access |
| Source Identifier |
[ISSN] 0031-9007
[DOI] 10.1103/PhysRevLett.93.152302
[NCID] AA00773679
[DOI] http://dx.doi.org/10.1103/PhysRevLett.93.152302
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