151. Transverse momentum and centrality dependence of high-pT nonphotonic electron suppression in Au+Au collisions at sqrt[s NN]=200 GeV
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B I, Abelev, M M, Aggarwal, Z, Ahammed, B D, Anderson, D, Arkhipkin, G S, Averichev, Y, Bai, J, Balewski, O, Barannikova, L S, Barnby, J, Baudot, S, Baumgart, V V, Belaga, A, Bellingeri-Laurikainen, R, Bellwied, F, Benedosso, R R, Betts, S, Bhardwaj, A, Bhasin, A K, Bhati, H, Bichsel, J, Bielcik, J, Bielcikova, L C, Bland, S-L, Blyth, M, Bombara, B E, Bonner, M, Botje, J, Bouchet, A V, Brandin, A, Bravar, T P, Burton, M, Bystersky, R V, Cadman, X Z, Cai, H, Caines, M, Calderón de la Barca Sánchez, J, Callner, O, Catu, D, Cebra, Z, Chajecki, P, Chaloupka, S, Chattopadhyay, H F, Chen, J H, Chen, J Y, Chen, J, Cheng, M, Cherney, A, Chikanian, W, Christie, S U, Chung, J P, Coffin, T M, Cormier, M R, Cosentino, J G, Cramer, H J, Crawford, D, Das, S, Dash, M, Daugherity, M M, de Moura, T G, Dedovich, M, Dephillips, A A, Derevschikov, L, Didenko, T, Dietel, P, Djawotho, S M, Dogra, X, Dong, J L, Drachenberg, J E, Draper, F, Du, V B, Dunin, J C, Dunlop, M R, Dutta Mazumdar, V, Eckardt, W R, Edwards, L G, Efimov, V, Emelianov, J, Engelage, G, Eppley, B, Erazmus, M, Estienne, P, Fachini, R, Fatemi, J, Fedorisin, A, Feng, P, Filip, E, Finch, V, Fine, Y, Fisyak, J, Fu, C A, Gagliardi, L, Gaillard, M S, Ganti, E, Garcia-Solis, V, Ghazikhanian, P, Ghosh, Y G, Gorbunov, H, Gos, O, Grebenyuk, D, Grosnick, S M, Guertin, K S F F, Guimaraes, N, Gupta, B, Haag, T J, Hallman, A, Hamed, J W, Harris, W, He, M, Heinz, T W, Henry, S, Heppelmann, B, Hippolyte, A, Hirsch, E, Hjort, A M, Hoffman, G W, Hoffmann, D, Hofman, R, Hollis, M J, Horner, H Z, Huang, E W, Hughes, T J, Humanic, G, Igo, A, Iordanova, P, Jacobs, W W, Jacobs, P, Jakl, F, Jia, P G, Jones, E G, Judd, S, Kabana, K, Kang, J, Kapitan, M, Kaplan, D, Keane, A, Kechechyan, D, Kettler, V Yu, Khodyrev, B C, Kim, J, Kiryluk, A, Kisiel, E M, Kislov, S R, Klein, A G, Knospe, A, Kocoloski, D D, Koetke, T, Kollegger, M, Kopytine, L, Kotchenda, V, Kouchpil, K L, Kowalik, P, Kravtsov, V I, Kravtsov, K, Krueger, C, Kuhn, A I, Kulikov, A, Kumar, P, Kurnadi, A A, Kuznetsov, M A C, Lamont, J M, Landgraf, S, Lange, S, Lapointe, F, Laue, J, Lauret, A, Lebedev, R, Lednicky, C-H, Lee, S, Lehocka, M J, LeVine, C, Li, Q, Li, Y, Li, G, Lin, X, Lin, S J, Lindenbaum, M A, Lisa, F, Liu, H, Liu, J, Liu, L, Liu, T, Ljubicic, W J, Llope, R S, Longacre, W A, Love, Y, Lu, T, Ludlam, D, Lynn, G L, Ma, J G, Ma, Y G, Ma, D, Magestro, D P, Mahapatra, R, Majka, L K, Mangotra, R, Manweiler, S, Margetis, C, Markert, L, Martin, H S, Matis, Yu A, Matulenko, C J, McClain, T S, McShane, Yu, Melnick, A, Meschanin, J, Millane, M L, Miller, N G, Minaev, S, Mioduszewski, C, Mironov, A, Mischke, J, Mitchell, B, Mohanty, D A, Morozov, M G, Munhoz, B K, Nandi, C, Nattrass, T K, Nayak, J M, Nelson, N S, Nepali, P K, Netrakanti, L V, Nogach, S B, Nurushev, G, Odyniec, A, Ogawa, V, Okorokov, M, Oldenburg, D, Olson, M, Pachr, S K, Pal, Y, Panebratsev, A I, Pavlinov, T, Pawlak, T, Peitzmann, V, Perevoztchikov, C, Perkins, W, Peryt, S C, Phatak, M, Planinic, J, Pluta, N, Poljak, N, Porile, A M, Poskanzer, M, Potekhin, E, Potrebenikova, B V K S, Potukuchi, D, Prindle, C, Pruneau, J, Putschke, I A, Qattan, R, Raniwala, S, Raniwala, R L, Ray, D, Relyea, A, Ridiger, H G, Ritter, J B, Roberts, O V, Rogachevskiy, J L, Romero, A, Rose, C, Roy, L, Ruan, M J, Russcher, R, Sahoo, I, Sakrejda, T, Sakuma, S, Salur, J, Sandweiss, M, Sarsour, P S, Sazhin, J, Schambach, R P, Scharenberg, N, Schmitz, J, Seger, I, Selyuzhenkov, P, Seyboth, A, Shabetai, E, Shahaliev, M, Shao, M, Sharma, W Q, Shen, S S, Shimanskiy, E P, Sichtermann, F, Simon, R N, Singaraju, N, Smirnov, R, Snellings, P, Sorensen, J, Sowinski, J, Speltz, H M, Spinka, B, Srivastava, A, Stadnik, T D S, Stanislaus, D, Staszak, R, Stock, M, Strikhanov, B, Stringfellow, A A P, Suaide, M C, Suarez, N L, Subba, M, Sumbera, X M, Sun, Z, Sun, B, Surrow, T J M, Symons, A, Szanto de Toledo, J, Takahashi, A H, Tang, T, Tarnowsky, J H, Thomas, A R, Timmins, S, Timoshenko, M, Tokarev, T A, Trainor, S, Trentalange, R E, Tribble, O D, Tsai, J, Ulery, T, Ullrich, D G, Underwood, G, Van Buren, N, van der Kolk, M, van Leeuwen, A M, Vander Molen, R, Varma, I M, Vasilevski, A N, Vasiliev, R, Vernet, S E, Vigdor, Y P, Viyogi, S, Vokal, S A, Voloshin, W T, Waggoner, F, Wang, G, Wang, J S, Wang, X L, Wang, Y, Wang, J W, Watson, J C, Webb, G D, Westfall, A, Wetzler, C, Whitten, H, Wieman, S W, Wissink, R, Witt, J, Wu, Y, Wu, N, Xu, Q H, Xu, Z, Xu, P, Yepes, I-K, Yoo, Q, Yue, V I, Yurevich, W, Zhan, H, Zhang, W M, Zhang, Y, Zhang, Z P, Zhang, Y, Zhao, C, Zhong, J, Zhou, R, Zoulkarneev, Y, Zoulkarneeva, A N, Zubarev, and J X, Zuo
- Abstract
The STAR collaboration at the BNL Relativistic Heavy-Ion Collider (RHIC) reports measurements of the inclusive yield of nonphotonic electrons, which arise dominantly from semileptonic decays of heavy flavor mesons, over a broad range of transverse momenta (1.2p(T)10 GeV/c) in p+p, d+Au, and Au+Au collisions at sqrt[s_{NN}]=200 GeV. The nonphotonic electron yield exhibits an unexpectedly large suppression in central Au+Au collisions at high p(T), suggesting substantial heavy-quark energy loss at RHIC. The centrality and p(T) dependences of the suppression provide constraints on theoretical models of suppression.
- Published
- 2006