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Beam-energy-dependent two-pion interferometry and the freeze-out eccentricity of pions measured in heavy ion collisions at the STAR detector

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成果类型:
期刊论文
作者:
Adamczyk, L.*;Adkins, J. K.;Agakishiev, G.;Aggarwal, M. M.;Ahammed, Z.;...
通讯作者:
Adamczyk, L.
作者机构:
[Przybycien, M.; Adamczyk, L.] AGH Univ Sci & Technol, Krakow, Poland.
[Gliske, S.; Underwood, D. G.; Krueger, K.; Spinka, H. M.] Argonne Natl Lab, Argonne, IL 60439 USA.
[Nelson, J. M.] Univ Birmingham, Birmingham, W Midlands, England.
[Ullrich, T.; Smirnov, D.; Pile, P.; Lamont, M. A. C.; di Ruzza, B.; LeVine, M. J.; Ljubicic, T.; Huang, B.; Fazio, S.; Xu, Z.; Ogawa, A.; Ke, H. W.; Ruan, L.; Tang, A. H.; Videbaek, F.; Fisyak, Y.; Beavis, D. R.; Lauret, J.; Bland, L. C.; Aschenauer, E. C.; Longacre, R. S.; Webb, J. C.; Sorensen, P.; Christie, W.; Arkhipkin, D.; Debbe, R. R.; Lebedev, A.; Burton, T. P.; Eyser, O.; Dunlop, J. C.; Landgraf, J. M.; Yip, K.; Schmidke, W. B.; Didenko, L.; Wang, H.; Guryn, W.; Van Buren, G.; Lee, J. H.] Brookhaven Natl Lab, Upton, NY 11973 USA.
[Perkins, C.; Crawford, H. J.; Engelage, J.; Judd, E. G.] Univ Calif Berkeley, Berkeley, CA 94720 USA.
通讯机构:
[Adamczyk, L.] A
AGH Univ Sci & Technol, Krakow, Poland.
语种:
英文
期刊:
PHYSICAL REVIEW C
ISSN:
2469-9985
年:
2015
卷:
92
期:
1
基金类别:
RHIC Operations Group; RCF at BNL; NERSC Center at LBNL; KISTI Center in Korea; Open Science Grid consortium; Office of NP within the US DOE Office of ScienceUnited States Department of Energy (DOE); Office of HEP within the US DOE Office of ScienceUnited States Department of Energy (DOE); US NSFNational Science Foundation (NSF); CNRS/IN2P3Centre National de la Recherche Scientifique (CNRS); FAPESP CNPq of Brazil; Ministry of Education and Science of the Russian FederationMinistry of Education and Science, Russian Federation; NNSFCNational Natural Science Foundation of China (NSFC); CASChinese Academy of Sciences; MoST; MoE of ChinaMinistry of Education, China; Korean Research FoundationKorea Research Foundation; GA of the Czech Republic; MSMT of the Czech RepublicMinistry of Education, Youth & Sports - Czech Republic; FIAS of Germany; DAEDepartment of Atomic Energy (DAE); DSTDepartment of Science & Technology (India); CSIR of IndiaCouncil of Scientific & Industrial Research (CSIR) - India; National Science Centre of PolandNational Science Center, PolandNational Science Centre, Poland; National Research Foundation of the Republic of Croatia, Ministry of Science, Education and Sports of the Republic of Croatia; RosAtom of Russia; Direct For Mathematical & Physical ScienNational Science Foundation (NSF)NSF - Directorate for Mathematical & Physical Sciences (MPS) [1067907] Funding Source: National Science Foundation
机构署名:
本校为其他机构
摘要:
We present results of analyses of two-pion interferometry in Au+Au collisions at sNN=7.7, 11.5, 19.6, 27, 39, 62.4, and 200 GeV measured in the STAR detector as part of the BNL Relativistic Heavy Ion Collider Beam Energy Scan program. The extracted correlation lengths (Hanbury-Brown-Twiss radii) are studied as a function of beam energy, azimuthal angle relative to the reaction plane, centrality, and transverse mass (mT) of the particles. The azimuthal analysis allows extraction of the eccentricity of the entire fireball at kinetic freeze-out. T...

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