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Global and local polarization of Λ hyperons in Au+Au collisions at 200 GeV from STAR

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成果类型:
期刊论文、会议论文
作者:
Niida, Takafumi;Adam, J.;Adamczyk, L.;Adams, J. R.;Adkins, J. K.;...
通讯作者:
Niida, T.
作者机构:
[Niida, T.; Niida, Takafumi] Wayne State Univ, 666 W Hancock, Detroit, MI 48201 USA.
[Drachenberg, J. L.] Abilene Christian Univ, Abilene, TX 79699 USA.
[Sikora, R.; Fulek, L.; Przybycien, M.; Adamczyk, L.] AGH Univ Sci & Technol, FPACS, PL-30059 Krakow, Poland.
[Svirida, D. N.; Bordyuzhin, I. G.; Alekseev, I.] Alikhanov Inst Theoret & Expt Phys, Moscow 117218, Russia.
[Underwood, D. G.; Krueger, K.; Spinka, H. M.] Argonne Natl Lab, 9700 S Cass Ave, Argonne, IL 60439 USA.
通讯机构:
[Niida, T.] W
Wayne State Univ, 666 W Hancock, Detroit, MI 48201 USA.
语种:
英文
期刊:
Nuclear Physics A
ISSN:
0375-9474
年:
2019
卷:
982
页码:
511-514
会议名称:
27th International Conference on Ultrarelativistic Nucleus-Nucleus Collisions (Quark Matter)
会议时间:
MAY 13-19, 2018
会议地点:
Venice, ITALY
会议主办单位:
[Niida, Takafumi] Wayne State Univ, 666 W Hancock, Detroit, MI 48201 USA.^[Drachenberg, J. L.] Abilene Christian Univ, Abilene, TX 79699 USA.^[Adamczyk, L.;Fulek, L.;Przybycien, M.;Sikora, R.] AGH Univ Sci & Technol, FPACS, PL-30059 Krakow, Poland.^[Alekseev, I.;Bordyuzhin, I. G.;Svirida, D. N.] Alikhanov Inst Theoret & Expt Phys, Moscow 117218, Russia.^[Krueger, K.;Spinka, H. M.;Underwood, D. G.] Argonne Natl Lab, 9700 S Cass Ave, Argonne, IL 60439 USA.^[Arkhipkin, D.;Aschenauer, E. C.;Bland, L. C.;Chang, Z.;Christie, W.;Didenko, L.;Dunlop, J. C.;Eyser, O.;Fazio, S.;Fisyak, Y.;Guryn, W.;Jia, J.;Kauder, K.;Ke, H. W.;Landgraf, J. M.;Lauret, J.;Lebedev, A.;Lee, J. H.;Ljubicic, T.;Longacre, R. S.;Ma, R.;Ogawa, A.;Page, B. S.;Pak, R.;Ruan, L.;Schmidke, W. B.;Smirnov, D.;Sorensen, P.;Tang, A. H.;Todoroki, T.;Tribedy, P.;Ullrich, T.;Upsal, I.;Van Buren, G.;Videbaek, F.;Webb, J. C.;Xu, Z.;Yang, S.;Yip, K.] Brookhaven Natl Lab, Upton, NY 11973 USA.^[Crawford, H. J.;Engelage, J.;Judd, E. G.;Nelson, J. M.;Perkins, C.] Univ Calif Berkeley, Berkeley, CA 94720 USA.^[Sanchez, M. Calderon de la Barca;Cebra, D.;Flores, C. E.;Heppelmann, S.;Kinghorn, T. A.;Meehan, K.;Romero, J. L.] Univ Calif Davis, Davis, CA 95616 USA.^[Chan, B. K.;Esha, R.;Huang, H. Z.;Igo, G.;Nasim, Md.;Sergeeva, M.;Trentalange, S.;Tsai, O. D.;Wang, G.;Wen, L.] Univ Calif Los Angeles, Los Angeles, CA 90095 USA.^[Barish, K.;Bassill, A. J.;Bryslawskyj, J.;Kapukchyan, D.;Kim, C.;Krauth, L.;Negrete, J. D.;Seto, R.] Univ Calif Riverside, Riverside, CA 92521 USA.^[Bai, X.;Das, S.;Liu, F.;Luo, X.;Nayak, K.;Nonaka, T.;Pei, H.;Shi, S. S.;Sun, X. M.;Tu, B.;Wang, Y.;Xu, J.;Zhang, L.] Cent China Normal Univ, Wuhan 430079, Hubei, Peoples R China.^[Evdokimov, O.;Huang, B.;Luo, S.;Xie, G.;Ye, Z.] Univ Illinois, Chicago, IL 60607 USA.^[Adam, J.;Cherney, M.;Seger, J.] Creighton Univ, Omaha, NE 68178 USA.^[Bielcik, J.;Chaloupka, P.;Harlenderova, A.;Holub, L.;Kocan, M.;Kosarzewski, L. K.;Kramarik, L.;Kvapil, J.;Licenik, R.;Lidrych, J.;Matonoha, O.;Moravcova, Z.;Rusnakova, O.] Czech Tech Univ, FNSPE, Prague 11519, Czech Republic.^[Galatyuk, T.;Seck, F.] Tech Univ Darmstadt, D-64289 Darmstadt, Germany.^[Csanad, M.;Pinter, R. L.] Eotvos Lorand Univ, H-1117 Budapest, Hungary.^[Kisel, I.;Vassiliev, I.;Zyzak, M.] FIAS, D-60438 Frankfurt, Germany.^[Ma, L.] Fudan Univ, Shanghai 200433, Peoples R China.^[Deppner, I. M.;Herrmann, N.] Heidelberg Univ, D-69120 Heidelberg, Germany.^[Beliwied, R.;Kulathunga, N.;Timmins, A. R.] Univ Houston, Houston, TX 77204 USA.^[Jacobs, W. W.;Kalinkin, D.;Kwasizur, J. H.;Liu, H.;Solyst, W.;Vossen, A.;Wissink, S. W.] Indiana Univ, Bloomington, IN 47408 USA.^[Chen, X.;Zhang, J.] Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Gansu, Peoples R China.^[Mondal, M. M.;Sahu, P. K.;Tripathy, S. K.] Inst Phys, Bhubaneswar 751005, India.^[Bhasin, A.;Gupta, A.] Univ Jammu, Jammu 180001, India.^[Agakishiev, G.;Aparin, A.;Averichev, G. S.;Bunzarov, I.;Chankova-Bunzarova, N.;Dedovich, T. G.;Efimov, L. G.;Fedorisin, J.;Filip, P.;Kechechyan, A.;Lednicky, R.;Panebratsev, Y.;Rogachevskiy, O. V.;Shahaliev, E.;Tokarev, M.;Vokal, S.] Joint Inst Nucl Res, Dubna 141980, Russia.^[Chakaberia, I.;Guo, Y.;Hamad, A. I.;Kabana, S.;Keane, D.;Liang, Y.;Margetis, S.;Singha, S.;Wu, Y.] Kent State Univ, Kent, OH 44242 USA.^[Adkins, J. K.;Fatemi, R.;Ramachandran, S.] Univ Kentucky, Lexington, KY 40506 USA.^[Contin, G.;Dong, X.;Hong, Y.;Lomnitz, M.;Matis, H. S.;Odyniec, G.;Porter, J.;Radhakrishnan, S. K.;Ritter, H. G.;Schmah, A. M.;Sichtermann, E. P.;Thomas, J. H.;Wieman, H.;Xu, N.;Zhang, J.] Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.^[Brown, D.;Ewigleben, J.;Kagamaster, S.;Reed, R.;Shanmuganathan, P. V.;Tomkiel, C. A.] Lehigh Univ, Bethlehem, PA 18015 USA.^[Schmitz, N.;Seyboth, P.] Max Planck Inst Phys & Astrophys, D-80805 Munich, Germany.^[Tarnowsky, T.;Westfall, G. D.] Michigan State Univ, E Lansing, MI 48824 USA.^[Alekseev, I.;Brandin, A. V.;Kochenda, L.;Kravtsov, P.;Nigmatkulov, G.;Okorokov, V. A.;Strikhanov, M.;Taranenko, A.] Natl Res Nucl Univ MEPhI, Moscow 115409, Russia.^[Bairathi, V.;Mallick, D.;Mishra, D.;Mohanty, B.] HBNI, Natl Inst Sci Educ & Res, Jatni 752050, India.^[Chang, F-H.;Huang, T.;Yang, Y.] Natl Cheng Kung Univ, Tainan 70101, Taiwan.^[Bielcikova, J.;Federic, P.;Rusnak, J.;Simko, M.;Sumbera, M.;Vanek, J.] Nucl Phys Inst CAS, Rez 25068, Czech Republic.^[Adams, J. R.;Humanic, T. J.;Lisa, M. A.] Ohio State Univ, Columbus, OH 43210 USA.^[Pawlik, B.] Inst Nucl Phys PAN, PL-31342 Krakow, Poland.^[Aggarwal, M. M.;Attri, A.;Bhati, A. K.;Kumar, L.;Pruthi, N. K.;Singh, J.] Panjab Univ, Chandigarh 160014, India.^[Dilks, C.;Heppelmann, S.;Summa, B.] Penn State Univ, University Pk, PA 16802 USA.^[Derevschikov, A. A.;Minaev, N. G.;Morozov, D. A.;Nogach, L. V.;Vasiliev, A. N.] Inst High Energy Phys, Protvino 142281, Russia.^[He, L.;Hirsch, A.;Srivastava, B.;Stringfellow, B.;Wang, F.;Xie, W.;Zhao, J.] Purdue Univ, W Lafayette, IN 47907 USA.^[Oh, K.;Yoo, I. -K.] Pusan Natl Univ, Pusan 46241, South Korea.^[Brandenburg, J. D.;Butterworth, J.;Eppley, G.;Geurts, F.;Roberts, J. B.;Tlusty, D.] Rice Univ, Houston, TX 77251 USA.^[Mazer, J. A.;Salur, S.] Rutgers State Univ, Piscataway, NJ 08854 USA.^[Suaide, A. A. P.] Univ Sao Paulo, BR-05314970 Sao Paulo, Brazil.^[Chen, X.;Jiang, K.;Ju, X.;Li, C.;Li, X.;Liu, Z.;Shao, M.;Sun, Y.;Tang, Z.;Wang, P.;Zha, W.;Zhang, S.;Zhang, Y.] Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China.^[Chakaberia, I.;Mei, J. C.;Shen, F.;Upsal, I.;Xu, Q. H.;Yang, C.;Yang, K. .;Yi, L.;Zhu, Z.] Shandong Univ, Qingdao 266237, Shandong, Peoples R China.^[Bairathi, V.;Chen, J. H.;Li, W.;Liu, P.;Ma, G. L.;Ma, Y. G.;Nie, M.;Shah, N.;Shen, W. Q.;Shou, Q. Y.;Xu, Y. F.;Zhang, S.;Zhang, Z.;Zhong, C.;Zhou, C.] Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China.^[Finch, E.] Southern Connecticut State Univ, New Haven, CT 06515 USA.^[Behera, A.;Huang, S. L.;Huo, P.;Jia, J.;Lacey, R.;Liu, P.;Magdy, N.;Schweid, B. R.] SUNY Stony Brook, Stony Brook, NY 11794 USA.^[Gunarathne, D. S.;Kraishan, A. F.;Olvitt, D., Jr.;Posik, M.;Quintero, A.;Surrow, B.] Temple Univ, Philadelphia, PA 19122 USA.^[Anderson, D. M.;Gagliardi, C. A.;Hamed, A.;Lin, T.;Liu, Y.;Mioduszewski, S.;Sahoo, N. R.;Tribble, R. E.] Texas A&M Univ, College Stn, TX 77843 USA.^[Atetalla, F.;Jentsch, A.;Markert, C.;Ray, R. L.;Schambach, J.] Univ Texas Austin, Austin, TX 78712 USA.^[Ashraf, M. U.;Cheng, J.;Huang, X.;Kang, K.;Li, Y.;Wang, Y.;Xiao, Z. G.;Zhang, X. P.;Zhu, X.] Tsinghua Univ, Beijing 100084, Peoples R China.^[Aoyama, R.;Esumi, S.;Sugiura, T.] Univ Tsukuba, Tsukuba, Ibaraki 3058571, Japan.^[Witt, R.] US Naval Acad, Annapolis, MD 21402 USA.^[Gibson, A.;Grosnick, D.;Stanislaus, T. D. S.] Valparaiso Univ, Valparaiso, IN 46383 USA.^[Ahammed, Z.;Chatterjee, A.;Chattopadhyay, S.] Variable Energy Cyclotron Ctr, Kolkata 700064, India.^[Kikola, D. P.;Kisiel, A.;Lipiec, A.;Pluta, J.;Siejka, S.;Szymanski, P.;Zbroszczyk, H.] Warsaw Univ Technol, PL-00661 Warsaw, Poland.^[Elsey, N.;Jowzaee, S.;Elayavalli, R. Kunnawalkam;Llope, W. J.;Mooney, I.;Niida, T.;Putschke, J.;Voloshin, S. A.] Wayne State Univ, Detroit, MI 48201 USA.^[Caines, H.;Harris, J. W.;Horvat, S.;Majka, R.;Nemes, D. B.;Oh, S.;Sandweiss, J.;Smirnov, N.;Stewart, D. J.] Yale Univ, New Haven, CT 06520 USA.
会议赞助商:
Italian Inst Nucl Phys
出版地:
RADARWEG 29, 1043 NX AMSTERDAM, NETHERLANDS
出版者:
ELSEVIER
基金类别:
U.S. Department of Energy Office of Science, Office of Nuclear PhysicsUnited States Department of Energy (DOE) [DE-FG02-92ER-40713]
机构署名:
本校为其他机构
摘要:
New results on global polarization of $\Lambda$ hyperons in Au+Au collisions at $\sqrt{s_{NN}}$ = 200 GeV reveal non-zero signal on the order of a few tenths of a percent. Compared with lower energy results, the current measurement shows that the polarization decreases at higher collision energy, the trend being well reproduced by theoretical calculations. The polarization is found to be larger in more peripheral collisions, as well as in the in-plane than in the out-of-plane direction. The signal seems to depend on the asymmetry between positive and negative charge in each event, which may in...

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