Global polarization of Lambda hyperons in Au plus Au collisions at root s(NN)=200 GeV

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期刊论文

作者：

Adam, J.*;Adamczyk, L.;Adams, J. R.;Adkins, J. K.;Agakishiev, G.;...

通讯作者：

Adam, J.

作者机构：

[Adam, J.; Cherney, M.; Seger, J.] Creighton Univ, Omaha, NE 68178 USA.

[Sikora, R.; Fulek, L.; Przybycien, M.; Adamczyk, L.] AGH Univ Sci & Technol, FPACS, PL-30059 Krakow, Poland.

[Underwood, D. G.; Krueger, K.; Spinka, H. M.] Argonne Natl Lab, Argonne, IL 60439 USA.

[Ullrich, T.; Smirnov, D.; Chang, Z.; Todoroki, T.; Jia, J.; Ljubicic, T.; Fazio, S.; Xu, Z.; Ma, R.; Ogawa, A.; Ke, H. W.; Page, B. S.; Ruan, L.; Tang, A. H.; Videbaek, F.; Fisyak, Y.; Lauret, J.; Tribedy, P.; Bland, L. C.; Yang, S.; Aschenauer, E. C.; Longacre, R. S.; Webb, J. C.; Sorensen, P.; Christie, W.; Arkhipkin, D.; Lebedev, A.; Eyser, O.; Dunlop, J. C.; Landgraf, J. M.; Pak, R.; Yip, K.; Schmidke, W. B.; Chakaberia, I; Didenko, L.; Guryn, W.; Van Buren, G.; Lee, J. H.] Brookhaven Natl Lab, Upton, NY 11973 USA.

[Perkins, C.; Crawford, H. J.; Engelage, J.; Nelson, J. M.; Judd, E. G.] Univ Calif Berkeley, Berkeley, CA 94720 USA.

通讯机构：

[Adam, J.] C

Creighton Univ, Omaha, NE 68178 USA.

语种：

英文

期刊：

PHYSICAL REVIEW C

ISSN：

2469-9985

年：

2018

卷：

期：

DOI：

10.1103/PhysRevC.98.014910

基金类别：

RHIC Operation Group at BNL; RCF at BNL; NERSC Center at LBNL; Open Science Grid consortium; Office of Nuclear Physics within the U.S. DOE Office of Science; U.S. National Science FoundationNational Science Foundation (NSF); Ministry of Education and Science of the Russian FederationMinistry of Education and Science, Russian Federation; National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC); Chinese Academy of ScienceChinese Academy of Sciences; Ministry of Science and Technology of ChinaMinistry of Science and Technology, China; Chinese Ministry of EducationMinistry of Education, China; National Research Foundation of KoreaNational Research Foundation of Korea; Czech Science FoundationGrant Agency of the Czech Republic; Ministry of Education, Youth and Sports of the Czech RepublicMinistry of Education, Youth & Sports - Czech Republic; Department of Atomic Energy of the Government of IndiaDepartment of Atomic Energy (DAE); Department of Science and Technology of the Government of IndiaDepartment of Science & Technology (India); National Science Centre of PolandNational Science Center, PolandNational Science Centre, Poland; Ministry of Science, Education and Sports of the Republic of CroatiaMinistry of Science, Education and Sports, Republic of Croatia; RosAtom of Russia; German Bundesministerium fur Bildung, Wissenschaft, Forschung and Technologie (BMBF)Federal Ministry of Education & Research (BMBF); Helmholtz AssociationHelmholtz Association

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摘要：

Global polarization of Lambda hyperons has been measured to be of the order of a few tenths of a percentage in Au+Au collisions at root s(NN) = 200 GeV, with no significant difference between Lambda and (Lambda) over bar. These new results reveal the collision energy dependence of the global polarization together with the results previously observed at root s(NN) = 7.7-62.4 GeV and indicate noticeable vorticity of the medium created in noncentral heavy-ion collisions at the highest Relativistic Heavy Ion Collider collision energy. The signal is in rough quantitative agreement with the theoreti...

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Global polarization of Lambda hyperons in Au plus Au collisions at root s(NN)=200 GeV

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