Longitudinal double-spin asymmetry and cross section for inclusive neutral pion production at midrapidity in polarized proton collisions at s=200 GeV
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Title |
Longitudinal double-spin asymmetry and cross section for inclusive neutral pion production at midrapidity in polarized proton collisions at s=200 GeV
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Creator |
ABELEV, BI
AGGARWAL, MM AHAMMED, Z ALAKHVERDYANTS, AV ANDERSON, BD ARKHIPKIN, D AVERICHEV, GS BALEWSKI, J BARANNIKOVA, O BARNBY, LS BAUMGART, S GROSNICK, D GRUBE, B GUERTIN, SM GUPTA, A GUPTA, N GURYN, W HAAG, B HALLMAN, TJ HAMED, A HAN, LX BEAVIS, DR HARRIS, JW HAYS-WEHLE, JP HEINZ, M HEPPELMANN, S HIRSCH, A HJORT, E HOFFMAN, AM HOFFMANN, GW HOFMAN, DJ HOLLIS, RS BELLWIED, R HUANG, HZ HUMANIC, TJ HUO, L IGO, G IORDANOVA, A JACOBS, P JACOBS, WW JAKL, P JENA, C JIN, F BENEDOSSO, F JONES, CL JONES, PG JOSEPH, J JUDD, EG KABANA, S KAJIMOTO, K KANG, K KAPITAN, J KAUDER, K KEANE, D BETANCOURT, MJ KECHECHYAN, A KETTLER, D 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 KRUEGER, K KRUS, M KUMAR, L BHASIN, A KURNADI, P LAMONT, MAC LANDGRAF, JM LAPOINTE, S LAURET, J LEBEDEV, A LEDNICKY, R LEE, CH LEE, JH LEIGHT, W BHATI, AK LEVINE, MJ LI, C LI, L LI, N LI, W LI, X LI, X LI, Y LI, Z LIN, G BICHSEL, H LINDENBAUM, SJ LISA, MA LIU, F LIU, H LIU, J LJUBICIC, T LLOPE, WJ LONGACRE, RS LOVE, WA LU, Y BIELCIK, J MA, GL MA, YG MAHAPATRA, DP MAJKA, R MALL, OI MANGOTRA, LK MANWEILER, R MARGETIS, S MARKERT, C MASUI, H BIELCIKOVA, J MATIS, HS MATULENKO, YA MCDONALD, D MCSHANE, TS MESCHANIN, A MILNER, R MINAEV, NG MIODUSZEWSKI, S MISCHKE, A MITROVSKI, MK BIRITZ, B MOHANTY, B MONDAL, MM MOROZOV, DA MUNHOZ, MG NANDI, BK NATTRASS, C NAYAK, TK NELSON, JM NETRAKANTI, PK NG, MJ BLAND, LC NOGACH, LV NURUSHEV, SB ODYNIEC, G OGAWA, A OKADA, H OKOROKOV, V OLSON, D PACHR, M PAGE, BS PAL, SK BONNER, BE PANDIT, Y PANEBRATSEV, Y PAWLAK, T PEITZMANN, T PEREVOZTCHIKOV, V PERKINS, C PERYT, W PHATAK, SC PILE, P PLANINIC, M BOUCHET, J PLOSKON, MA PLUTA, J PLYKU, D POLJAK, N POSKANZER, AM POTUKUCHI, BVKS POWELL, CB PRINDLE, D PRUNEAU, C PRUTHI, NK BRAIDOT, E PUJAHARI, PR PUTSCHKE, J RANIWALA, R RANIWALA, S RAY, RL REDWINE, R REED, R REHBERG, JM RITTER, HG ROBERTS, JB BRANDIN, AV ROGACHEVSKIY, OV ROMERO, JL ROSE, A ROY, C RUAN, L RUSSCHER, MJ SAHOO, R SAKAI, S SAKREJDA, I SAKUMA, T BRIDGEMAN, A SALUR, S SANDWEISS, J SANGALINE, E SCHAMBACH, J SCHARENBERG, RP SCHMITZ, N SCHUSTER, TR SEELE, J SEGER, J SELYUZHENKOV, I BRUNA, E SEYBOTH, P SHAHALIEV, E SHAO, M SHARMA, M SHI, SS SICHTERMANN, EP SIMON, F SINGARAJU, RN SKOBY, MJ SMIRNOV, N BUELTMANN, S SORENSEN, P SOWINSKI, J SPINKA, HM SRIVASTAVA, B STANISLAUS, TDS STASZAK, D STEVENS, JR STOCK, R STRIKHANOV, M STRINGFELLOW, B BUNZAROV, I SUAIDE, AAP SUAREZ, MC SUBBA, NL SUMBERA, M SUN, XM SUN, Y SUN, Z SURROW, B SYMONS, TJM DE TOLEDO, AS BURTON, TP TAKAHASHI, J TANG, AH TANG, Z TARINI, LH TARNOWSKY, T THEIN, D THOMAS, JH TIAN, J TIMMINS, AR TIMOSHENKO, S CAI, XZ TLUSTY, D TOKAREV, M TRAINOR, TA TRAM, VN TRENTALANGE, S TRIBBLE, RE TSAI, OD ULERY, J ULLRICH, T UNDERWOOD, DG CAINES, H VAN BUREN, G VAN NIEUWENHUIZEN, G VANFOSSEN, JA VARMA, R VASCONCELOS, GMS VASILIEV, AN VIDEBAEK, F VIYOGI, YP VOKAL, S VOLOSHIN, SA SANCHEZ, MCD WADA, M WALKER, M WANG, F WANG, G WANG, H WANG, JS WANG, Q WANG, X WANG, XL WANG, Y CATU, O WEBB, G WEBB, JC WESTFALL, GD WHITTEN, C WIEMAN, H WINGFIELD, E WISSINK, SW WITT, R WU, Y XIE, W CEBRA, D XU, N XU, QH XU, W XU, Y XU, Z XUE, L YANG, Y YEPES, P YIP, K YOO, IK CENDEJAS, R YUE, Q ZAWISZA, M ZBROSZCZYK, H ZHAN, W ZHANG, S ZHANG, WM ZHANG, XP ZHANG, Y ZHANG, ZP ZHAO, J CERVANTES, MC ZHONG, C ZHOU, J ZHOU, W ZHU, X ZHU, YH 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 LEYVA, AD 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 |
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Subject |
parton distributions
nucleon photoproduction momentum hadrons jet |
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Description |
We report a measurement of the longitudinal double-spin asymmetry A(LL) and the differential cross section for inclusive pi(0) production at midrapidity in polarized proton collisions at s=200 GeV. The cross section was measured over a transverse momentum range of 1 < p(T)< 17 GeV/c and found to be in good agreement with a next-to-leading order perturbative QCD calculation. The longitudinal double-spin asymmetry was measured in the range of 3.7 < p(T)< 11 GeV/c and excludes a maximal positive gluon polarization in the proton. The mean transverse momentum fraction of pi(0)'s in their parent jets was found to be around 0.7 for electromagnetically triggered events.
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Publisher |
AMER PHYSICAL SOC
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Date |
2011-11-03T18:37:32Z
2011-12-26T13:00:20Z 2011-12-27T05:53:39Z 2011-11-03T18:37:32Z 2011-12-26T13:00:20Z 2011-12-27T05:53:39Z 2009 |
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Type |
Article
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Identifier |
PHYSICAL REVIEW D, 80(11)
1550-7998 http://dx.doi.org/10.1103/PhysRevD.80.111108 http://dspace.library.iitb.ac.in/xmlui/handle/10054/16509 http://hdl.handle.net/10054/16509 |
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Language |
en
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