Global polarization measurement in Au plus Au collisions

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Please use this identifier to cite or link to this item: http://dspace.library.iitb.ac.in/jspui/handle/10054/16499

Title:	Global polarization measurement in Au plus Au collisions
Authors:	ABELEV, BI AGGARWAL, MM AHAMMED, Z ANDERSON, BD ARKHIPKIN, D AVERICHEV, GS BAI, Y BALEWSKI, J BARANNIKOVA, O BARNBY, LS BAUDOT, J GROSNICK, D GRUBE, B GUERTIN, SM GUIMARAES, KSFF GUPTA, A GUPTA, N HAAG, B HALLMAN, TJ HAMED, A HARRIS, JW BAUMGART, S HE, W HEINZ, M HENRY, TW HEPPELMANN, S HIPPOLYTE, B HIRSCH, A HJORT, E HOFFMAN, AM HOFFMANN, GW HOFMAN, DJ BELAGA, VV HOLLIS, RS HORNER, MJ HUANG, HZ HUGHES, EW HUMANIC, TJ IGO, G IORDANOVA, A JACOBS, P JACOBS, WW JAKL, P BELLINGERI-LAURIKAINEN, A JONES, PG JUDD, EG KABANA, S KANG, K KAPITAN, J KAPLAN, M KEANE, D KECHECHYAN, A KETTLER, D KHODYREV, VY BELLWIED, R KIRYLUK, J KISIEL, A KISLOV, EM KLEIN, SR KNOSPE, AG KOCOLOSKI, A KOETKE, DD KOLLEGGER, T KOPYTINE, M KOTCHENDA, L BENEDOSSO, F KOUCHPIL, V KOWALIK, KL KRAVTSOV, P KRAVTSOV, VI KRUEGER, K KUHN, C KULIKOV, AI KUMAR, A KURNADI, P KUZNETSOV, AA BETTS, RR LAMONT, MAC LANDGRAF, JM LANGE, S LAPOINTE, S LAUE, F LAURET, J LEBEDEV, A LEDNICKY, R LEE, CH LEHOCKA, S BHARDWAJ, S LEVINE, MJ LI, C LI, Q LI, Y LIN, G LIN, X LINDENBAUM, SJ LISA, MA LIU, F LIU, H BHASIN, A LIU, J LIU, L LJUBICIC, T LLOPE, WJ LONGACRE, RS LOVE, WA LU, Y LUDLAM, T LYNN, D MA, GL BHATI, AK MA, JG MA, YG MAHAPATRA, DP MAJKA, R MANGOTRA, LK MANWEILER, R MARGETIS, S MARKERT, C MARTIN, L MATIS, HS BICHSEL, H MATULENKO, YA MCSHANE, TS MESCHANIN, A MILLANE, J MILLER, ML MINAEV, NG MIODUSZEWSKI, S MISCHKE, A MITCHELL, J MOHANTY, B BIELCIK, J MOROZOV, DA MUNHOZ, MG NANDI, BK NATTRASS, C NAYAK, TK NELSON, JM NEPALI, C NETRAKANTI, PK NOGACH, LV NURUSHEV, SB BIELCIKOVA, J ODYNIEC, G OGAWA, A OKOROKOV, V OLSON, D PACHR, M PAL, SK PANEBRATSEV, Y PAVLINOV, AI PAWLAK, T PEITZMANN, T BLAND, LC PEREVOZTCHIKOV, V PERKINS, C PERYT, W PHATAK, SC PLANINIC, M PLUTA, J POLJAK, N PORILE, N POSKANZER, AM POTEKHIN, M BLYTH, SL POTREBENIKOVA, E POTUKUCHI, BVKS PRINDLE, D PRUNEAU, C PRUTHI, NK PUTSCHKE, J QATTAN, IA RANIWALA, R RANIWALA, S RAY, RL BOMBARA, M RELYEA, D RIDIGER, A RITTER, HG ROBERTS, JB ROGACHEVSKIY, OV ROMERO, JL ROSE, A ROY, C RUAN, L RUSSCHER, MJ BONNER, BE SAHOO, R SAKREJDA, I SAKUMA, T SALUR, S SANDWEISS, J SARSOUR, M SAZHIN, PS SCHAMBACH, J SCHARENBERG, RP SCHMITZ, N BOTJE, M SEGER, J SELYUZHENKOV, I SEYBOTH, P SHABETAI, A SHAHALIEV, E SHAO, M SHARMA, M SHEN, WQ SHIMANSKIY, SS SICHTERMANN, EP BOUCHET, J SIMON, F SINGARAJU, RN SMIRNOV, N SNELLINGS, R SORENSEN, P SOWINSKI, J SPELTZ, J SPINKA, HM SRIVASTAVA, B STADNIK, A BRANDIN, AV STANISLAUS, TDS STASZAK, D STOCK, R STRIKHANOV, M STRINGFELLOW, B DE TOLEDO, AS TAKAHASHI, J TANG, AH TARNOWSKY, T THOMAS, JH BURTON, TP TIMMINS, AR TIMOSHENKO, S TOKAREV, M TRAINOR, TA TRENTALANGE, S TRIBBLE, RE TSAI, OD ULERY, J ULLRICH, T UNDERWOOD, DG BYSTERSKY, M VAN BUREN, G VAN DER KOLK, N VAN LEEUWEN, M MOLEN, AMV VARMA, R VASILEVSKI, IM VASILIEV, AN VERNET, R VIGDOR, SE VIYOGI, YP CAI, XZ VOKAL, S VOLOSHIN, SA WADA, M WAGGONER, WT WANG, F WANG, G WANG, JS WANG, XL WANG, Y WEBB, JC CAINES, H WESTFALL, GD WHITTEN, C WIEMAN, H WISSINK, SW WITT, R WU, J WU, Y XU, N XU, QH XU, Z SANCHEZ, CDLB YEPES, P YOO, IK YUE, Q YUREVICH, VI ZHAN, W ZHANG, H ZHANG, WM ZHANG, Y ZHANG, ZP ZHAO, Y CALLNER, J ZHONG, C ZHOU, J ZOULKARNEEV, R ZOULKARNEEVA, Y ZUBAREV, AN ZUO, JX CATU, O CEBRA, D CERVANTES, MC CHAJECKI, Z CHALOUPKA, P CHATTOPADHYAY, S CHEN, HF CHEN, JH CHEN, JY CHENG, J CHERNEY, M CHIKANIAN, A CHRISTIE, W CHUNG, SU CLARKE, RF CODRINGTON, MJM COFFIN, JP CORMIER, TM COSENTINO, MR CRAMER, JG CRAWFORD, HJ DAS, D DASH, S DAUGHERITY, M DE MOURA, MM DEDOVICH, TG DEPHILLIPS, M DEREVSCHIKOV, AA DIDENKO, L DIETEL, T DJAWOTHO, P DOGRA, SM DONG, X DRACHENBERG, JL DRAPER, JE DU, F DUNIN, VB DUNLOP, JC MAZUMDAR, MRD EDWARDS, WR EFIMOV, LG EMELIANOV, V ENGELAGE, J EPPLEY, G ERAZMUS, B ESTIENNE, M FACHINI, P FATEMI, R FEDORISIN, J FENG, A FILIP, P FINCH, E FINE, V FISYAK, Y FU, J GAGLIARDI, CA GAILLARD, L GANTI, MS GARCIA-SOLIS, E GHAZIKHANIAN, V GHOSH, P GORBUNOV, YN GOS, H GREBENYUK, O
Keywords:	relativistic nuclear collisions time projection chamber star particle lambda k-s(0) flow
Issue Date:	2007
Publisher:	AMER PHYSICAL SOC
Citation:	PHYSICAL REVIEW C, 76(2)
Abstract:	The system created in noncentral relativistic nucleus-nucleus collisions possesses large orbital angular momentum. Because of spin-orbit coupling, particles produced in such a system could become globally polarized along the direction of the system angular momentum. We present the results of Lambda and (Lambda) over bar hyperon global polarization measurements in Au+Au collisions at root s(NN)=62.4 and 200 GeV performed with the STAR detector at the BNL Relativistic Heavy Ion Collider (RHIC). The observed global polarization of Lambda and (Lambda) over bar hyperons in the STAR acceptance is consistent with zero within the precision of the measurements. The obtained upper limit, \|P-Lambda,P-(Lambda) over bar\|<= 0.02, is compared with the theoretical values discussed recently in the literature.
URI:	http://dx.doi.org/10.1103/PhysRevC.76.024915 http://dspace.library.iitb.ac.in/xmlui/handle/10054/16499 http://hdl.handle.net/10054/16499
ISSN:	0556-2813
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