51. Measurement of the bottom quark contribution to nonphotonic electron production in p + p collisions at √s=200 GeV
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M M, Aggarwal, Z, Ahammed, A V, Alakhverdyants, I, Alekseev, J, Alford, B D, Anderson, Daniel, Anson, D, Arkhipkin, G S, Averichev, J, Balewski, L S, Barnby, S, Baumgart, D R, Beavis, R, Bellwied, M J, Betancourt, R R, Betts, A, Bhasin, A K, Bhati, H, Bichsel, J, Bielcik, J, Bielcikova, B, Biritz, L C, Bland, B E, Bonner, J, Bouchet, E, Braidot, A V, Brandin, A, Bridgeman, E, Bruna, S, Bueltmann, I, Bunzarov, T P, Burton, X Z, Cai, H, Caines, M, Calderón de la Barca Sánchez, O, Catu, D, Cebra, R, Cendejas, M C, Cervantes, Z, Chajecki, P, Chaloupka, S, Chattopadhyay, H F, Chen, J H, Chen, J Y, Chen, J, Cheng, M, Cherney, A, Chikanian, K E, Choi, W, Christie, P, Chung, R F, Clarke, M J M, Codrington, R, Corliss, J G, Cramer, H J, Crawford, D, Das, S, Dash, A, Davila Leyva, L C, De Silva, R R, Debbe, T G, Dedovich, A A, Derevschikov, R, Derradi de Souza, L, Didenko, P, Djawotho, S M, Dogra, X, Dong, J L, Drachenberg, J E, Draper, J C, Dunlop, M R, Dutta Mazumdar, L G, Efimov, E, Elhalhuli, M, Elnimr, J, Engelage, G, Eppley, B, Erazmus, M, Estienne, L, Eun, O, Evdokimov, P, Fachini, R, Fatemi, J, Fedorisin, R G, Fersch, P, Filip, E, Finch, V, Fine, Y, Fisyak, C A, Gagliardi, D R, Gangadharan, M S, Ganti, E J, Garcia-Solis, A, Geromitsos, F, Geurts, V, Ghazikhanian, P, Ghosh, Y N, Gorbunov, A, Gordon, O, Grebenyuk, D, Grosnick, S M, Guertin, A, Gupta, W, Guryn, B, Haag, A, Hamed, L-X, Han, J W, Harris, J P, Hays-Wehle, M, Heinz, S, Heppelmann, A, Hirsch, E, Hjort, A M, Hoffman, G W, Hoffmann, D J, Hofman, B, Huang, H Z, Huang, T J, Humanic, L, Huo, G, Igo, P, Jacobs, W W, Jacobs, C, Jena, F, Jin, C L, Jones, P G, Jones, J, Joseph, E G, Judd, S, Kabana, K, Kajimoto, K, Kang, J, Kapitan, K, Kauder, D, Keane, A, Kechechyan, D, Kettler, D P, Kikola, J, Kiryluk, A, Kisiel, V, Kizka, S R, Klein, A G, Knospe, A, Kocoloski, D D, Koetke, T, Kollegger, J, Konzer, I, Koralt, L, Koroleva, W, Korsch, L, Kotchenda, V, Kouchpil, P, Kravtsov, K, Krueger, M, Krus, L, Kumar, P, Kurnadi, M A C, Lamont, J M, Landgraf, S, Lapointe, J, Lauret, A, Lebedev, R, Lednicky, C-H, Lee, J H, Lee, W, Leight, M J, Levine, C, Li, L, Li, N, Li, W, Li, X, Li, Y, Li, Z M, Li, G, Lin, X Y, Lin, S J, Lindenbaum, M A, Lisa, F, Liu, H, Liu, J, Liu, T, Ljubicic, W J, Llope, R S, Longacre, W A, Love, Y, Lu, E V, Lukashov, X, Luo, G L, Ma, Y G, Ma, D P, Mahapatra, R, Majka, O I, Mall, L K, Mangotra, R, Manweiler, S, Margetis, C, Markert, H, Masui, H S, Matis, Yu A, Matulenko, D, McDonald, T S, McShane, A, Meschanin, R, Milner, N G, Minaev, S, Mioduszewski, A, Mischke, M K, Mitrovski, B, Mohanty, M M, Mondal, B, Morozov, D A, Morozov, M G, Munhoz, B K, Nandi, C, Nattrass, T K, Nayak, J M, Nelson, P K, Netrakanti, M J, Ng, L V, Nogach, S B, Nurushev, G, Odyniec, A, Ogawa, V, Okorokov, E W, Oldag, D, Olson, M, Pachr, B S, Page, S K, Pal, Y, Pandit, Y, Panebratsev, T, Pawlak, T, Peitzmann, V, Perevoztchikov, C, Perkins, W, Peryt, S C, Phatak, P, Pile, M, Planinic, M A, Ploskon, J, Pluta, D, Plyku, N, Poljak, A M, Poskanzer, B V K S, Potukuchi, C B, Powell, D, Prindle, C, Pruneau, N K, Pruthi, P R, Pujahari, J, Putschke, H, Qiu, R, Raniwala, S, Raniwala, R L, Ray, R, Redwine, R, Reed, H G, Ritter, J B, Roberts, O V, Rogachevskiy, J L, Romero, A, Rose, C, Roy, L, Ruan, R, Sahoo, S, Sakai, I, Sakrejda, T, Sakuma, S, Salur, J, Sandweiss, E, Sangaline, J, Schambach, R P, Scharenberg, N, Schmitz, T R, Schuster, J, Seele, J, Seger, I, Selyuzhenkov, P, Seyboth, E, Shahaliev, M, Shao, M, Sharma, S S, Shi, E P, Sichtermann, F, Simon, R N, Singaraju, M J, Skoby, N, Smirnov, P, Sorensen, J, Sowinski, H M, Spinka, B, Srivastava, T D S, Stanislaus, D, Staszak, J R, Stevens, R, Stock, M, Strikhanov, B, Stringfellow, A A P, Suaide, M C, Suarez, N L, Subba, M, Sumbera, X M, Sun, Y, Sun, Z, Sun, B, Surrow, D N, Svirida, T J M, Symons, A, Szanto de Toledo, J, Takahashi, A H, Tang, Z, Tang, L H, Tarini, T, Tarnowsky, D, Thein, J H, Thomas, J, Tian, A R, Timmins, S, Timoshenko, D, Tlusty, M, Tokarev, T A, Trainor, V N, Tram, S, Trentalange, R E, Tribble, O D, Tsai, J, Ulery, T, Ullrich, D G, Underwood, G, Van Buren, M, van Leeuwen, G, van Nieuwenhuizen, J A, Vanfossen, R, Varma, G M S, Vasconcelos, A N, Vasiliev, F, Videbaek, Y P, Viyogi, S, Vokal, S A, Voloshin, M, Wada, M, Walker, F, Wang, G, Wang, H, Wang, J S, Wang, Q, Wang, X L, Wang, Y, Wang, G, Webb, J C, Webb, G D, Westfall, C, Whitten, H, Wieman, S W, Wissink, R, Witt, Y F, Wu, W, Xie, H, Xu, N, Xu, Q H, Xu, W, Xu, Y, Xu, Z, Xu, L, Xue, Y, Yang, P, Yepes, K, Yip, I-K, Yoo, Q, Yue, M, Zawisza, H, Zbroszczyk, W, Zhan, J B, Zhang, S, Zhang, W M, Zhang, X P, Zhang, Y, Zhang, Z P, Zhang, J, Zhao, C, Zhong, J, Zhou, W, Zhou, X, Zhu, Y H, Zhu, R, Zoulkarneev, and Y, Zoulkarneeva
- Abstract
The contribution of B meson decays to nonphotonic electrons, which are mainly produced by the semileptonic decays of heavy-flavor mesons, in p + p collisions at √s=200 GeV has been measured using azimuthal correlations between nonphotonic electrons and hadrons. The extracted B decay contribution is approximately 50% at a transverse momentum of pT≥5 GeV/c. These measurements constrain the nuclear modification factor for electrons from B and D meson decays. The result indicates that B meson production in heavy ion collisions is also suppressed at high pT.
- Published
- 2010