Longitudinal spin transfer to Lambda and Lambda hyperons in polarized proton-proton collisions at s=200 GeV

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Longitudinal spin transfer to Lambda and Lambda hyperons in polarized proton-proton collisions at s=200 GeV

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Title: Longitudinal spin transfer to Lambda and Lambda hyperons in polarized proton-proton collisions at s=200 GeV
Author: ABELEV, BI; AGGARWAL, MM; AHAMMED, Z; ALAKHVERDYANTS, AV; ANDERSON, BD; ARKHIPKIN, D; AVERICHEV, GS; BALEWSKI, J; BARANNIKOVA, O; BARNBY, LS; BAUMGART, S; GRUBE, B; GUERTIN, SM; GUPTA, A; GUPTA, N; GURYN, W; HAAG, B; HALLMAN, TJ; HAMED, A; HAN, LX; HARRIS, JW; BEAVIS, DR; HAYS-WEHLE, JP; HEINZ, M; HEPPELMANN, S; HIRSCH, A; HJORT, E; HOFFMAN, AM; HOFFMANN, GW; HOFMAN, DJ; HOLLIS, RS; HUANG, HZ; BELLWIED, R; HUMANIC, TJ; HUO, L; IGO, G; IORDANOVA, A; JACOBS, P; JACOBS, WW; JAKL, P; JENA, C; JIN, F; JONES, CL; BENEDOSSO, F; JONES, PG; JOSEPH, J; JUDD, EG; KABANA, S; KAJIMOTO, K; KANG, K; KAPITAN, J; KAUDER, K; KEANE, D; KECHECHYAN, A; BETANCOURT, MJ; KETTLER, D; KHODYREV, VY; KIKOLA, DP; KIRYLUK, J; KISIEL, A; KLEIN, SR; KNOSPE, AG; KOCOLOSKI, A; KOETKE, DD; KOLLEGGER, T; BETTS, RR; KONZER, J; KOPYTINE, M; KORALT, I; KORSCH, W; KOTCHENDA, L; KOUCHPIL, V; KRAVTSOV, P; KRAVTSOV, VI; KRUEGER, K; KRUS, M; BHASIN, A; KUMAR, L; KURNADI, P; LAMONT, MAC; LANDGRAF, JM; LAPOINTE, S; LAURET, J; LEBEDEV, A; LEDNICKY, R; LEE, CH; LEE, JH; BHATI, AK; LEIGHT, W; LEVINE, MJ; LI, C; LI, N; LI, X; LI, Y; LI, Z; LIN, G; LINDENBAUM, SJ; LISA, MA; BICHSEL, H; LIU, F; LIU, H; LIU, J; LJUBICIC, T; LLOPE, WJ; LONGACRE, RS; LOVE, WA; LU, Y; LUDLAM, T; MA, GL; BIELCIK, J; MA, YG; MAHAPATRA, DP; MAJKA, R; MALL, OI; MANGOTRA, LK; MANWEILER, R; MARGETIS, S; MARKERT, C; MASUI, H; MATIS, HS; BIELCIKOVA, J; MATULENKO, YA; MCDONALD, D; MCSHANE, TS; MESCHANIN, A; MILNER, R; MINAEV, NG; MIODUSZEWSKI, S; MISCHKE, A; MITROVSKI, MK; MOHANTY, B; BIRITZ, B; MOROZOV, DA; MUNHOZ, MG; NANDI, BK; NATTRASS, C; NAYAK, TK; NELSON, JM; NETRAKANTI, PK; NG, MJ; NOGACH, LV; NURUSHEV, SB; BLAND, LC; ODYNIEC, G; OGAWA, A; OKADA, H; OKOROKOV, V; OLSON, D; PACHR, M; PAGE, BS; PAL, SK; PANDIT, Y; PANEBRATSEV, Y; BNZAROV, I; PAWLAK, T; PEITZMANN, T; PEREVOZTCHIKOV, V; PERKINS, C; PERYT, W; PHATAK, SC; PILE, P; PLANINIC, M; PLOSKON, MA; PLUTA, J; BONNER, BE; PLYKU, D; POLJAK, N; POSKANZER, AM; POTUKUCHI, BVKS; PRINDLE, D; PRUNEAU, C; PRUTHI, NK; PUJAHARI, PR; PUTSCHKE, J; RANIWALA, R; BOUCHET, J; RANIWALA, S; RAY, RL; REDWINE, R; REED, R; REHBERG, JM; RITTER, HG; ROBERTS, JB; ROGACHEVSKIY, OV; ROMERO, JL; ROSE, A; BRAIDOT, E; ROY, C; RUAN, L; RUSSCHER, MJ; SAHOO, R; SAKAI, S; SAKREJDA, I; SAKUMA, T; SALUR, S; SANDWEISS, J; SCHAMBACH, J; BRANDIN, AV; SCHARENBERG, RP; SCHMITZ, N; SCHUSTER, TR; SEELE, J; SEGER, J; SELYUZHENKOV, I; SEYBOTH, P; SHAHALIEV, E; SHAO, M; SHARMA, M; BRIDGEMAN, A; SHI, SS; SICHTERMANN, EP; SIMON, F; SINGARAJU, RN; SKOBY, MJ; SMIRNOV, N; SORENSEN, P; SOWINSKI, J; SPINKA, HM; SRIVASTAVA, B; BRUNA, E; STANISLAUS, TDS; STASZAK, D; STEVENS, JR; STOCK, R; STRIKHANOV, M; STRINGFELLOW, B; SUAIDE, AAP; SUAREZ, MC; SUBBA, NL; SUMBERA, M; BUELTMANN, S; SUN, XM; SUN, Y; SUN, Z; SURROW, B; SYMONS, TJM; DE TOLEDO, AS; TAKAHASHI, J; TANG, AH; TANG, Z; TARINI, LH; BURTON, TP; TARNOWSKY, T; THEIN, D; THOMAS, JH; TIAN, J; TIMMINS, AR; TIMOSHENKO, S; TLUSTY, D; TOKAREV, M; TRAINOR, TA; TRAM, VN; CAI, XZ; TRENTALANGE, S; TRIBBLE, RE; TSAI, OD; ULERY, J; ULLRICH, T; UNDERWOOD, DG; VAN BUREN, G; VAN NIEUWENHUIZEN, G; VANFOSSEN, JA; VARMA, R; CAINES, H; VASCONCELOS, GMS; VASILIEV, AN; VIDEBAEK, F; VIYOGI, YP; VOKAL, S; VOLOSHIN, SA; WADA, M; WALKER, M; WANG, F; WANG, G; SANCHEZ, MCDB; WANG, H; WANG, JS; WANG, Q; WANG, X; WANG, XL; WANG, Y; WEBB, G; WEBB, JC; WESTFALL, GD; WHITTEN, C; CATU, O; WIEMAN, H; WISSINK, SW; WITT, R; WU, Y; XIE, W; XU, N; XU, QH; XU, W; XU, Y; XU, Z; CEBRA, D; XUE, L; YANG, Y; YEPES, P; YIP, K; YOO, IK; YUE, Q; ZAWISZA, M; ZBROSZCZYK, H; ZHAN, W; ZHANG, S; CENDEJAS, R; ZHANG, WM; ZHANG, XP; ZHANG, Y; ZHANG, ZP; ZHAO, Y; ZHONG, C; ZHOU, J; ZHOU, W; ZHU, X; ZHU, YH; CERVANTES, MC; ZOULKARNEEV, R; ZOULKARNEEVA, Y; CHAJECKI, Z; CHALOUPKA, P; CHATTOPADHYAY, S; CHEN, HF; CHEN, JH; CHEN, JY; CHENG, J; CHERNEY, M; CHIKANIAN, A; CHOI, KE; CHRISTIE, W; CHUNG, P; CLARKE, RF; CODRINGTON, MJM; CORLISS, R; CRAMER, JG; CRAWFORD, HJ; DAS, D; DASH, S; DE SILVA, LC; DEBBE, RR; DEDOVICH, TG; DEPHILLIPS, M; DEREVSCHIKOV, AA; DE SOUZA, RD; DIDENKO, L; DJAWOTHO, P; DOGRA, SM; DONG, X; DRACHENBERG, JL; DRAPER, JE; DUNLOP, JC; MAZUMDAR, MRD; EFIMOV, LG; ELHALHULI, E; ELNIMR, M; ENGELAGE, J; EPPLEY, G; ERAZMUS, B; ESTIENNE, M; EUN, L; FACHINI, P; FATEMI, R; FEDORISIN, J; FERSCH, RG; FILIP, P; FINCH, E; FINE, V; FISYAK, Y; GAGLIARDI, CA; GANGADHARAN, DR; GANTI, MS; GARCIA-SOLIS, EJ; GEROMITSOS, A; GEURTS, F; GHAZIKHANIAN, V; GHOSH, P; GORBUNOV, YN; GORDON, A; GREBENYUK, O; GROSNICK, D
Abstract: The longitudinal spin transfer, D(LL), from high energy polarized protons to Lambda and Lambda hyperons has been measured for the first time in proton-proton collisions at s=200 GeV with the STAR detector at the Relativistic Heavy Ion Collider. The measurements cover pseudorapidity, eta, in the range |eta|< 1.2 and transverse momenta, p(T), up to 4 GeV/c. The longitudinal spin transfer is found to be D(LL)=-0.03 +/- 0.13(stat)+/- 0.04(syst) for inclusive Lambda and D(LL)=-0.12 +/- 0.08(stat)+/- 0.03(syst) for inclusive Lambda hyperons with <<eta >>=0.5 and << p(T)>>=3.7 GeV/c. The dependence on eta and p(T) is presented.
URI: http://dx.doi.org/10.1103/PhysRevD.80.111102
http://dspace.library.iitb.ac.in/xmlui/handle/10054/16511
http://hdl.handle.net/10054/16511
Date: 2009


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