Azimuthal di-hadron correlations in d plus Au and Au plus Au collisions at root s(NN)=200 GeV measured at the STAR detector

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Azimuthal di-hadron correlations in d plus Au and Au plus Au collisions at root s(NN)=200 GeV measured at the STAR detector

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Title: Azimuthal di-hadron correlations in d plus Au and Au plus Au collisions at root s(NN)=200 GeV measured at the STAR detector
Author: AGGARWAL, MM; AHAMMED, Z; ALAKHVERDYANTS, AV; ALEKSEEV, I; ALFORD, J; ANDERSON, BD; ARKHIPKIN, D; AVERICHEV, GS; BALEWSKI, J; BARNBY, LS; BAUMGART, S; ZOULKARNEEVA, Y; CHALOUPKA, P; CHATTOPADHYAY, S; CHEN, HF; CHEN, JH; MARGETIS, S; CHEN, JY; CHENG, J; CHERNEY, M; SAHOO, R; TRIBBLE, RE; HUO, L; CHIKANIAN, A; CHOI, KE; CHRISTIE, W; CHUNG, P; CLARKE, RF; CODRINGTON, MJM; MARKERT, C; CORLISS, R; CRAMER, JG; TSAI, OD; HAYS-WEHLE, JP; CRAWFORD, HJ; DAS, D; IGO, G; DASH, S; LEYVA, AD; DE SILVA, LC; DEBBE, RR; DEDOVICH, TG; MASUI, H; ULERY, J; DEREVSCHIKOV, AA; LJUBICIC, T; DE SOUZA, RD; DIDENKO, L; DJAWOTHO, P; DOGRA, SM; JACOBS, P; DONG, X; DRACHENBERG, JL; DRAPER, JE; ULLRICH, T; DUNLOP, JC; MATIS, HS; SAKAI, S; MAZUMDAR, MRD; EFIMOV, LG; ELHALHULI, E; ELNIMR, M; ENGELAGE, J; EPPLEY, G; JACOBS, WW; UNDERWOOD, DG; ERAZMUS, B; ESTIENNE, M; EUN, L; SAKREJDA, I; MATULENKO, YA; EVDOKIMOV, O; FACHINI, P; FATEMI, R; FEDORISIN, J; FERSCH, RG; HOFFMANN, GW; FILIP, P; FINCH, E; JENA, C; FINE, V; SAKUMA, T; FISYAK, Y; MCDONALD, D; GAGLIARDI, CA; GANGADHARAN, DR; GANTI, MS; VAN BUREN, G; GARCIA-SOLIS, EJ; GEROMITSOS, A; GEURTS, F; GHAZIKHANIAN, V; GHOSH, P; SALUR, S; JIN, F; GORBUNOV, YN; GUPTA, A; GORDON, A; VAN LEEUWEN, M; GREBENYUK, O; GROSNICK, D; JONES, CL; JONES, PG; JOSEPH, J; JUDD, EG; SANDWEISS, J; BETANCOURT, MJ; KABANA, S; KAJIMOTO, K; VAN NIEUWENHUIZEN, G; BIRITZ, B; KANG, K; KAPITAN, J; KAUDER, K; KEANE, D; KECHECHYAN, A; KETTLER, D; SANGALINE, E; KIKOLA, DP; KIRYLUK, J; MAHAPATRA, DP; BETTS, RR; KISIEL, A; MCSHANE, TS; KLEIN, SR; KNOSPE, AG; KOCOLOSKI, A; KOETKE, DD; KOLLEGGER, T; SCHAMBACH, J; KONZER, J; RITTER, HG; KORALT, I; KOROLEVA, L; KORSCH, W; BHASIN, A; MESCHANIN, A; KOTCHENDA, L; KOUCHPIL, V; KRAVTSOV, P; KRUEGER, K; BRUNA, E; SANCHEZ, MCD; KRUS, M; KUMAR, L; KURNADI, P; LAMONT, MAC; LANDGRAF, JM; LAPOINTE, S; MILNER, R; BHATI, AK; LAURET, J; LEBEDEV, A; VANFOSSEN, JA; SCHARENBERG, RP; LEDNICKY, R; LEE, CH; LEE, JH; LEIGHT, W; LEVINE, MJ; LI, C; LI, L; MINAEV, NG; LI, N; VARMA, R; BICHSEL, H; SCHMITZ, N; LI, W; LI, X; LI, X; LI, Y; LI, ZM; LIN, G; LINDENBAUM, SJ; LISA, MA; VASCONCELOS, GMS; MIODUSZEWSKI, S; LIU, F; LLOPE, WJ; LIU, H; BIELCIK, J; LIU, J; MISCHKE, A; MITROVSKI, MK; MOHANTY, B; MONDAL, MM; VASILIEV, AN; GUPTA, N; MOROZOV, B; BLAND, LC; HEINZ, M; MOROZOV, DA; MUNHOZ, MG; NANDI, BK; NATTRASS, C; NAYAK, TK; NELSON, JM; VIDEBAEK, F; NETRAKANTI, PK; NG, MJ; GURYN, W; NOGACH, LV; SCHUSTER, TR; NURUSHEV, SB; BONNER, BE; ODYNIEC, G; OGAWA, A; OKOROKOV, V; VIYOGI, YP; OLDAG, EW; OLSON, D; PACHR, M; PAGE, BS; HAAG, B; SEELE, J; PAL, SK; PANDIT, Y; PANEBRATSEV, Y; BOUCHET, J; HOFMAN, DJ; PAWLAK, T; PEITZMANN, T; PEREVOZTCHIKOV, V; PERKINS, C; PERYT, W; PHATAK, SC; SEGER, J; HAMED, A; PILE, P; PLANINIC, M; VOKAL, S; PLOSKON, MA; PLUTA, J; BRAIDOT, E; PLYKU, D; POLJAK, N; POSKANZER, AM; POTUKUCHI, BVKS; SELYUZHENKOV, I; POWELL, CB; HAN, LX; VOLOSHIN, SA; PRINDLE, D; PRUNEAU, C; PRUTHI, NK; PUJAHARI, PR; PUTSCHKE, J; BRANDIN, AV; RANIWALA, R; RANIWALA, S; SEYBOTH, P; RAY, RL; ROBERTS, JB; REDWINE, R; HARRIS, JW; REED, R; SHAHALIEV, E; SHAO, M; SHARMA, M; BUELTMANN, S; LONGACRE, RS; SHI, SS; BEAVIS, DR; BIELCIKOVA, J; SICHTERMANN, EP; SIMON, F; SINGARAJU, RN; SKOBY, MJ; SMIRNOV, N; SORENSEN, P; SOWINSKI, J; SPINKA, HM; LOVE, WA; SRIVASTAVA, B; WADA, M; BUNZAROV, I; HEPPELMANN, S; STANISLAUS, TDS; STASZAK, D; STEVENS, JR; STOCK, R; STRIKHANOV, M; STRINGFELLOW, B; SUAIDE, AAP; LU, Y; WALKER, M; SUAREZ, MC; SUBBA, NL; SUMBERA, M; HIRSCH, A; BURTON, TP; SUN, XM; SUN, Y; SUN, Z; SURROW, B; SVIRIDA, DN; CATU, O; LUO, X; SYMONS, TJM; DE TOLEDO, AS; TAKAHASHI, J; TANG, AH; HJORT, E; TANG, Z; CAI, XZ; TARINI, LH; TARNOWSKY, T; WANG, F; THEIN, D; MA, GL; THOMAS, JH; TIAN, J; TIMMINS, AR; TIMOSHENKO, S; TLUSTY, D; HOFFMAN, AM; TOKAREV, M; TRAINOR, TA; WANG, G; CAINES, H; TRAM, VN; MA, YG; TRENTALANGE, S; WANG, H; WANG, JS; WANG, Q; HORNER, MJ; ROGACHEVSKIY, OV; WANG, XL; GUERTIN, SM; WANG, Y; WEBB, G; WEBB, JC; WESTFALL, GD; CEBRA, D; WHITTEN, C; WIEMAN, H; WISSINK, SW; ROMERO, JL; WITT, R; HUANG, B; MAJKA, R; WU, YF; XIE, W; XU, N; XU, QH; XU, W; XU, Y; CENDEJAS, R; ROSE, A; XU, Z; XUE, L; YANG, Y; MALL, OI; HUANG, HZ; YEPES, P; YIP, K; YOO, IK; YUE, Q; ZAWISZA, M; BRIDGEMAN, A; ZBROSZCZYK, H; ZHAN, W; CERVANTES, MC; ZHANG, JB; MANGOTRA, LK; ZHANG, S; HUMANIC, TJ; ZHANG, WM; ZHANG, XP; ZHANG, Y; ROY, C; ZHANG, ZP; ZHAO, J; ZHONG, C; ZHOU, J; ZHOU, W; MANWEILER, R; CHAJECKI, Z; ZHU, X; BELLWIED, R; ZHU, YH; RUAN, L; ZOULKARNEEV, R
Abstract: Yields, correlation shapes, and mean transverse momenta p(T) of charged particles associated with intermediate-to high-p(T) trigger particles (2.5 < p(T) < 10 GeV/c) in d + Au and Au + Au collisions at root s(NN) = 200 GeV are presented. For associated particles at higher p(T) greater than or similar to 2.5 GeV/c, narrow correlation peaks are seen in d + Au and Au + Au, indicating that the main production mechanism is jet fragmentation. At lower associated particle pT < 2 GeV/c, a large enhancement of the near- (Delta phi similar to 0) and away-side (Delta phi similar to pi) associated yields is found, together with a strong broadening of the away-side azimuthal distributions in Au + Au collisions compared to d + Au measurements, suggesting that other particle production mechanisms play a role. This is further supported by the observed significant softening of the away-side associated particle yield distribution at Delta phi similar to pi in central Au + Au collisions.
URI: http://dx.doi.org/10.1103/PhysRevC.82.024912
http://dspace.library.iitb.ac.in/xmlui/handle/10054/12954
http://hdl.handle.net/10054/12954
Date: 2010


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