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Transverse single-spin asymmetry and cross section for pi(0) and eta mesons at large Feynman x in p(up arrow) + p collisions at root s=200 GeV
DSpace at IIT Bombay
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Transverse single-spin asymmetry and cross section for pi(0) and eta mesons at large Feynman x in p(up arrow) + p collisions at root s=200 GeV
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| Creator |
ADAMCZYK, L
AGAKISHIEV, G AGGARWAL, MM AHAMMED, Z ALAKHVERDYANTS, AV ALEKSEEV, I ALFORD, J ANDERSON, BD ANSON, CD ARKHIPKIN, D ASCHENAUER, E AVERICHEV, GS BALEWSKI, J BANNERJEE, A BARNOVSKA, Z BEAVIS, DR BELLWIED, R BETANCOURT, MJ BETTS, RR BHASIN, A BHATI, AK BICHSEL, H BIELCIK, J BIELCIKOVA, J BORDYUZHIN, IG BOROWSKI, W BOUCHET, J BRANDIN, AV BROVKO, SG BRUNA, E BUELTMANN, S BUNZAROV, I BURTON, TP BUTTERWORTH, J CAI, XZ CAINES, H SANCHEZ, MCD CEBRA, D CENDEJAS, R CERVANTES, MC CHALOUPKA, P CHATTOPADHYAY, S CHEN, HF CHEN, JH CHEN, JY CHEN, L CHENG, J CHERNEY, M CHIKANIAN, A CHRISTIE, W CHUNG, P CHWASTOWSKI, J CODRINGTON, MJM CORLISS, R CRAMER, JG CRAWFORD, HJ CUI, X LEYVA, AD DE SILVA, LC DEBBE, RR DEDOVICH, TG DENG, J DE SOUZA, RD DHAMIJA, S DIDENKO, L DING, F DION, A DJAWOTHO, P DONG, X DRACHENBERG, JL DRAPER, JE DU, CM DUNKELBERGER, LE DUNLOP, JC EFIMOV, LG ELNIMR, M ENGELAGE, J EPPLEY, G EUN, L EVDOKIMOV, O FATEMI, R FAZIO, S FEDORISIN, J FERSCH, RG FILIP, P FINCH, E FISYAK, Y GAGLIARDI, CA GANGADHARAN, DR GEURTS, F GLISKE, S GORBUNOV, YN GREBENYUK, OG GROSNICK, D GUPTA, S GURYN, W HAAG, B HAJKOVA, O HAMED, A HAN, LX HARRIS, JW HAYS-WEHLE, JP HEPPELMANN, S HIRSCH, A HOFFMANN, GW HOFMAN, DJ HORVAT, S HUANG, B HUANG, HZ HUCK, P HUMANIC, TJ HUO, L IGO, G JACOBS, WW JENA, C JOSEPH, J JUDD, EG KABANA, S KANG, K KAPITAN, J KAUDER, K KE, HW KEANE, D KECHECHYAN, A KESICH, A KETTLER, D KIKOLA, DP KIRYLUK, J KISIEL, A KIZKA, V KLEIN, SR KOETKE, DD KOLLEGGER, T KONZER, J KORALT, I KOROLEVA, L KORSCH, W KOTCHENDA, L KRAVTSOV, P KRUEGER, K KUMAR, L LAMONT, MAC LANDGRAF, JM LAPOINTE, S LAURET, J LEBEDEV, A LEDNICKY, R LEE, JH LEIGHT, W LEVINE, MJ LI, C LI, L LI, W LI, X LI, X LI, Y LI, ZM LIMA, LM LISA, MA LIU, F LJUBICIC, T LLOPE, WJ LONGACRE, RS LU, Y LUO, X LUSZCZAK, A MA, GL MA, YG DON, DMMDM MAHAPATRA, DP MAJKA, R MALL, OI MARGETIS, S MARKERT, C MASUI, H MATIS, HS MCDONALD, D MCSHANE, TS MIODUSZEWSKI, S MITROVSKI, MK MOHAMMED, Y MOHANTY, B MOROZOV, B MUNHOZ, MG MUSTAFA, MK NAGLIS, M NANDI, BK NASIM, M NAYAK, TK NOGACH, LV NOVAK, J ODYNIEC, G OGAWA, A OH, K OHLSON, A OKOROKOV, V OLDAG, EW OLIVEIRA, RAN OLSON, D OSTROWSKI, P PACHR, M PAGE, BS PAL, SK PAN, YX PANDIT, Y PANEBRATSEV, Y PAWLAK, T PAWLIK, B PEI, H PERKINS, C PERYT, W PILE, P PLANINIC, M PLUTA, J PLYKU, D POLJAK, N PORTER, J POSKANZER, AM POWELL, CB PRINDLE, D PRUNEAU, C PRUTHI, NK PRZYBYCIEN, M PUJAHARI, PR PUTSCHKE, J QIU, H RANIWALA, R RANIWALA, S RAY, RL REDWINE, R REED, R RILEY, CK RITTER, HG ROBERTS, JB ROGACHEVSKIY, OV ROMERO, JL ROSS, JF RUAN, L RUSNAK, J SAHOO, NR SAKREJDA, I SALUR, S SANDACZ, A SANDWEISS, J SANGALINE, E SARKAR, A SCHAMBACH, J SCHARENBERG, RP SCHMAH, AM SCHMIDKE, B SCHMITZ, N SCHUSTER, TR SEELE, J SEGER, J SEYBOTH, P SHAH, N SHAHALIEV, E SHAO, M SHARMA, B SHARMA, M SHI, SS SHOU, QY SICHTERMANN, EP SINGARAJU, RN SKOBY, MJ SMIRNOV, D SMIRNOV, N SOLANKI, D SORENSEN, P DESOUZA, UG SPINKA, HM SRIVASTAVA, B STANISLAUS, TDS STEADMAN, SG STEVENS, JR STOCK, R STRIKHANOV, M STRINGFELLOW, B SUAIDE, AAP SUAREZ, MC SUMBERA, M SUN, XM SUN, Y SUN, Z SURROW, B SVIRIDA, DN SYMONS, TJM DE TOLEDO, AS TAKAHASHI, J TANG, AH TANG, Z TARINI, LH TARNOWSKY, T THEIN, D THOMAS, JH TIAN, J TIMMINS, AR TLUSTY, D TOKAREV, M TRAINOR, TA TRENTALANGE, S TRIBBLE, RE TRIBEDY, P TRZECIAK, BA TSAI, OD TURNAU, J ULLRICH, T UNDERWOOD, DG VAN BUREN, G VAN NIEUWENHUIZEN, G VANFOSSEN, JA VARMA, R VASCONCELOS, GMS VIDEBAEK, F VIYOGI, YP VOKAL, S VOLOSHIN, SA VOSSEN, A WADA, M WANG, F WANG, G WANG, H WANG, JS WANG, Q WANG, XL WANG, Y WEBB, G WEBB, JC WESTFALL, GD WHITTEN, C WIEMAN, H WISSINK, SW WITT, R WITZKE, W WU, YF XIAO, Z XIE, W XIN, K XU, H XU, N XU, QH XU, W XU, Y XU, Z XUE, L YANG, Y YANG, Y YEPES, P YI, Y YIP, K YOO, IK ZAWISZA, M ZBROSZCZYK, H ZHANG, JB ZHANG, S ZHANG, WM ZHANG, XP ZHANG, Y ZHANG, ZP ZHAO, F ZHAO, J ZHONG, C ZHU, X ZHU, YH ZOULKARNEEVA, Y |
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FRAGMENTATION
POLARIZATION GEV/C BEAM |
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| Description |
Measurements of the differential cross section and the transverse single-spin asymmetry, A(N), vs x(F) for pi(0) and eta mesons are reported for 0.4 < x(F) < 0.75 at an average pseudorapidity of 3.68. A data sample of approximately 6.3 pb(-1) was analyzed, which was recorded during p(up arrow) + p collisions at root s = 200 GeV by the STAR experiment at RHIC. The average transverse beam polarization was 56%. The cross section for pi(0), including the previously unmeasured region of x(F) > 0.55, is consistent with a perturbative QCD prediction, and the eta/pi(0) cross-section ratio agrees with existing midrapidity measurements. For 0.55 < x(F) < 0.75, the average A(N) for eta is 0.210 +/- 0.056, and that for pi(0) is 0.081 +/- 0.016. The probability that these two asymmetries are equal is similar to 3%.
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| Publisher |
AMER PHYSICAL SOC
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| Date |
2014-10-17T06:17:32Z
2014-10-17T06:17:32Z 2012 |
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| Type |
Article
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| Identifier |
PHYSICAL REVIEW D, 86(5)
1550-7998 1550-2368 http://dx.doi.org/10.1103/PhysRevD.86.051101 http://dspace.library.iitb.ac.in/jspui/handle/100/16163 |
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en
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