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Title
Two and Three-Pion Quantum Statistics Correlations in Pb-Pb Collisions at √ sNN = 2.76 TeV at the CERN Large Hadron Collider
Author(s)
B.Abelev안상언안설아장행진
Publication Year
2014-02-26
Abstract
Correlations induced by quantum statistics are sensitive to the spatiotemporal extent as well as dynamics of particle-emitting sources in heavy-ion collisions. In addition, such correlations can be used to search for the presence of a coherent component of pion production. Two- and three-pion correlations of same and mixed charge are measured at low relative momentum to estimate the coherent fraction of charged pions in Pb-Pb collisions at sNN=2.76 TeV at the CERN Large Hadron Collider with ALICE. The genuine three-pion quantum statistics correlation is found to be suppressed relative to the two-pion correlation based on the assumption of fully chaotic pion emission. The suppression is observed to decrease with triplet momentum. The observed suppression at low triplet momentum may correspond to a coherent fraction in charged-pion emission of 23%±8%.
Keyword
CERN LHC; ALICE; charge correlation; momentum dependence
Journal Title
Physical Review C
ISSN
0556-2813
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Appears in Collections:
7. KISTI 연구성과 > 학술지 발표논문
URI
https://repository.kisti.re.kr/handle/10580/14330
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