Forward Neutral-Pion Transverse Single-Spin Asymmetries in p plus p Collisions at s=200 GeV

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Forward Neutral-Pion Transverse Single-Spin Asymmetries in p plus p Collisions at s=200 GeV

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Title: Forward Neutral-Pion Transverse Single-Spin Asymmetries in p plus p Collisions at s=200 GeV
Author: ABELEV, BI; AGGARWAL, MM; AHAMMED, Z; ANDERSON, BD; ARKHIPKIN, D; AVERICHEV, GS; BAI, Y; BALEWSKI, J; BARANNIKOVA, O; BARNBY, LS; BAUDOT, J; BAUMGART, S; BEAVIS, DR; BELLWIED, R; BENEDOSSO, F; BETTS, RR; BHARDWAJ, S; BHASIN, A; BHATI, AK; BICHSEL, H; BIELCIK, J; BIELCIKOVA, J; BLAND, LC; BLYTH, SL; BOMBARA, M; BONNER, BE; BOTJE, M; BOUCHET, J; BRAIDOT, E; BRANDIN, AV; BUELTMANN, S; BURTON, TP; BYSTERSKY, M; CAI, XZ; CAINES, H; SANCHEZ, MCD; CALLNER, J; CATU, O; CEBRA, D; CERVANTES, MC; CHAJECKI, Z; CHALOUPKA, P; CHATTOPADHYAY, S; CHEN, HF; CHEN, JH; CHEN, JY; CHENG, J; CHERNEY, M; CHIKANIAN, A; CHOI, KE; 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; DE SOUZA, RD; DIDENKO, L; DIETEL, T; DJAWOTHO, P; DOGRA, SM; DONG, X; DRACHENBERG, JL; DRAPER, JE; DU, F; DUNLOP, JC; MAZUMDAR, MRD; EDWARDS, WR; EFIMOV, LG; ELHALHULI, E; EMELIANOV, V; ENGELAGE, J; EPPLEY, G; ERAZMUS, B; ESTIENNE, M; EUN, L; 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; GORDON, A; GOS, H; GREBENYUK, O; GROSNICK, D; GRUBE, B; GUERTIN, SM; GUIMARAES, KSFF; GUPTA, A; GUPTA, N; GURYN, W; HAAG, B; HALLMAN, TJ; HAMED, A; HARRIS, JW; HE, W; HEINZ, M; HENRY, TW; HEPPELMANN, S; HIPPOLYTE, B; HIRSCH, A; HJORT, E; HOFFMAN, AM; HOFFMANN, GW; HOFMAN, DJ; HOLLIS, RS; HORNER, MJ; HUANG, HZ; HUGHES, EW; HUMANIC, TJ; IGO, G; IORDANOVA, A; JACOBS, P; JACOBS, WW; JAKL, P; JIN, F; JONES, PG; JUDD, EG; KABANA, S; KAJIMOTO, K; KANG, K; KAPITAN, J; KAPLAN, M; KEANE, D; KECHECHYAN, A; KETTLER, D; KHODYREV, VY; KIRYLUK, J; KISIEL, A; KLEIN, SR; KNOSPE, AG; KOCOLOSKI, A; KOETKE, DD; KOLLEGGER, T; KOPYTINE, M; KOTCHENDA, L; KOUCHPIL, V; KOWALIK, KL; KRAVTSOV, P; KRAVTSOV, VI; KRUEGER, K; KUHN, C; KUMAR, A; KURNADI, P; LAMONT, MAC; LANDGRAF, JM; LANGDON, J; LANGE, S; LAPOINTE, S; LAUE, F; LAURET, J; LEBEDEV, A; LEDNICKY, R; LEE, CH; LEVINE, MJ; LI, C; LI, Q; LI, Y; LIN, G; LIN, X; LINDENBAUM, SJ; LISA, MA; LIU, F; LIU, H; LIU, J; LIU, L; LJUBICIC, T; LLOPE, WJ; LONGACRE, RS; LOVE, WA; LU, Y; LUDLAM, T; LYNN, D; MA, GL; MA, JG; MA, YG; MAHAPATRA, DP; MAJKA, R; MANGOTRA, LK; MANWEILER, R; MARGETIS, S; MARKERT, C; MATIS, HS; MATULENKO, YA; MCSHANE, TS; MESCHANIN, A; MILLANE, J; MILLER, C; MILLER, ML; MINAEV, NG; MIODUSZEWSKI, S; MISCHKE, A; MITCHELL, J; MOHANTY, B; MOROZOV, DA; MUNHOZ, MG; NANDI, BK; NATTRASS, C; NAYAK, TK; NELSON, JM; NEPALI, C; NETRAKANTI, PK; NG, MJ; NOGACH, LV; NURUSHEV, SB; ODYNIEC, G; OGAWA, A; OKADA, H; OKOROKOV, V; OLSON, D; PACHR, M; PAL, SK; PANEBRATSEV, Y; PAVLINOV, AI; PAWLAK, T; PEITZMANN, T; PEREVOZTCHIKOV, V; PERKINS, C; PERYT, W; PHATAK, SC; PLANINIC, M; PLUTA, J; POLJAK, N; PORILE, N; POSKANZER, AM; POTEKHIN, M; POTUKUCHI, BVKS; PRINDLE, D; PRUNEAU, C; PRUTHI, NK; PUTSCHKE, J; QATTAN, IA; RAKNESS, G; RANIWALA, R; RANIWALA, S; RAY, RL; RELYEA, D; RIDIGER, A; RITTER, HG; ROBERTS, JB; ROGACHEVSKIY, OV; ROMERO, JL; ROSE, A; ROY, C; RUAN, L; RUSSCHER, MJ; RYKOV, V; SAHOO, R; SAKREJDA, I; SAKUMA, T; SALUR, S; SANDWEISS, J; SARSOUR, M; SCHAMBACH, J; SCHARENBERG, RP; SCHMITZ, N; SEGER, J; SELYUZHENKOV, I; SEYBOTH, P; SHABETAI, A; SHAHALIEV, E; SHAO, M; SHARMA, M; SHI, XH; SICHTERMANN, EP; SIMON, F; SINGARAJU, RN; SKOBY, MJ; SMIRNOV, N; SNELLINGS, R; SORENSEN, P; SOWINSKI, J; SPELTZ, J; SPINKA, HM; SRIVASTAVA, B; STADNIK, A; STANISLAUS, TDS; STASZAK, D; STOCK, R; STRIKHANOV, M; STRINGFELLOW, B; SUAIDE, AAP; SUAREZ, MC; SUBBA, NL; SUMBERA, M; SUN, XM; SUN, Z; SURROW, B; SYMONS, TJM; DE TOLEDO, AS; TAKAHASHI, J; TANG, AH; TANG, Z; TARNOWSKY, T; TATAROWICZ, J; THEIN, D; THOMAS, JH; TIAN, J; TIMMINS, AR; TIMOSHENKO, S; TOKAREV, M; TRAINOR, TA; TRAM, VN; TRATTNER, AL; TRENTALANGE, S; TRIBBLE, RE; TSAI, OD; ULERY, J; ULLRICH, T; UNDERWOOD, DG; VAN BUREN, G; VAN DER KOLK, N; VAN LEEUWEN, M; VANDER MOLEN, AM; VARMA, R; VASCONCELOS, GMS; VASILEVSKI, IM; VASILIEV, AN; VERNET, R; VIDEBAEK, F; VIGDOR, SE; VIYOGI, YP; VOKAL, S; VOLOSHIN, SA; WADA, M; WAGGONER, WT; WANG, F; WANG, G; WANG, JS; WANG, Q; WANG, X; WANG, XL; WANG, Y; WEBB, JC; WESTFALL, GD; WHITTEN, CJ; WIEMAN, H; WISSINK, SW; WITT, R; WU, J; WU, Y; XU, N; XU, QH; XU, Z; YEPES, P; YOO, IK; YUE, Q; ZACHARIOU, N; ZAWISZA, M; ZHAN, W; ZHANG, H; ZHANG, S; ZHANG, WM; ZHANG, Y; ZHANG, ZP; ZHAO, Y; ZHONG, C; ZHOU, J; ZOULKARNEEV, R; ZOULKARNEEVA, Y; ZUO, JX
Abstract: We report precision measurements of the Feynman x (x(F)) dependence, and first measurements of the transverse momentum (p(T)) dependence, of transverse single-spin asymmetries for the production of pi(0) mesons from polarized proton collisions at s=200 GeV. The x(F) dependence of the results is in fair agreement with perturbative QCD model calculations that identify orbital motion of quarks and gluons within the proton as the origin of the spin effects. Results for the p(T) dependence at fixed x(F) are not consistent with these same perturbative QCD-based calculations.
URI: http://dx.doi.org/10.1103/PhysRevLett.101.222001
http://dspace.library.iitb.ac.in/xmlui/handle/10054/16497
http://hdl.handle.net/10054/16497
Date: 2008


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