Measurement of the Bottom Quark Contribution to Nonphotonic Electron Production in p plus p Collisions at root s=200 GeV

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Measurement of the Bottom Quark Contribution to Nonphotonic Electron Production in p plus p Collisions at root s=200 GeV

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Title: Measurement of the Bottom Quark Contribution to Nonphotonic Electron Production in p plus p Collisions at root s=200 GeV
Author: AGGARWAL, MM; AHAMMED, Z; ALAKHVERDYANTS, AV; ALEKSEEV, I; ALFORD, J; ANDERSON, BD; ANSON, D; ARKHIPKIN, D; AVERICHEV, GS; BALEWSKI, J; BARNBY, LS; GHAZIKHANIAN, V; GHOSH, P; GORBUNOV, YN; GORDON, A; GREBENYUK, O; SAKREJDA, I; JONES, PG; JOSEPH, J; JUDD, EG; UNDERWOOD, DG; ZHOU, W; BIELCIKOVA, J; KABANA, S; BELLWIED, R; KAJIMOTO, K; KANG, K; KAPITAN, J; KAUDER, K; SAKUMA, T; KEANE, D; KECHECHYAN, A; ZHU, X; MA, GL; KETTLER, D; KIKOLA, DP; MATULENKO, YA; KIRYLUK, J; KISIEL, A; BETANCOURT, MJ; KIZKA, V; KLEIN, SR; SALUR, S; ZHU, YH; KNOSPE, AG; RAY, RL; KOCOLOSKI, A; KOETKE, DD; KOLLEGGER, T; KONZER, J; MCDONALD, D; KORALT, I; KOROLEVA, L; KORSCH, W; ZOULKARNEEV, R; BETTS, RR; BRIDGEMAN, A; CAINES, H; KOTCHENDA, L; KOUCHPIL, V; KRAVTSOV, P; KRUEGER, K; KRUS, M; KUMAR, L; MCSHANE, TS; ZOULKARNEEVA, Y; KURNADI, P; LAMONT, MAC; LANDGRAF, JM; VAN BUREN, G; SANDWEISS, J; LAPOINTE, S; BHASIN, A; LAURET, J; LEBEDEV, A; LEDNICKY, R; MANGOTRA, LK; LEE, CH; LEE, JH; MESCHANIN, A; LEIGHT, W; VAN LEEUWEN, M; LEVINE, MJ; SANGALINE, E; LI, C; LI, L; LI, N; CHAJECKI, Z; BHATI, AK; LI, W; LI, X; LI, X; LI, Y; VAN NIEUWENHUIZEN, G; MILNER, R; LI, ZM; LJUBICIC, T; LIN, G; CHALOUPKA, P; LIN, XY; LINDENBAUM, SJ; LISA, MA; LIU, F; BICHSEL, H; LIU, H; VANFOSSEN, JA; MINAEV, NG; MIODUSZEWSKI, S; MISCHKE, A; CHATTOPADHYAY, S; HEINZ, M; MITROVSKI, MK; GUPTA, A; MOHANTY, B; BIRITZ, B; MONDAL, MM; MOROZOV, B; VARMA, R; MOROZOV, DA; MUNHOZ, MG; ROSE, A; NANDI, BK; NATTRASS, C; SCHAMBACH, J; NAYAK, TK; NELSON, JM; GURYN, W; NETRAKANTI, PK; NG, MJ; VASCONCELOS, GMS; BLAND, LC; TRAINOR, TA; NOGACH, LV; NURUSHEV, SB; ODYNIEC, G; OGAWA, A; SCHARENBERG, RP; OKOROKOV, V; OLDAG, EW; OLSON, D; HAAG, B; HOFMAN, DJ; IGO, G; PACHR, M; PAGE, BS; PAL, SK; BONNER, BE; PANDIT, Y; PANEBRATSEV, Y; SCHMITZ, N; PAWLAK, T; PEITZMANN, T; PEREVOZTCHIKOV, V; CHEN, HF; VASILIEV, AN; PERKINS, C; HAMED, A; PERYT, W; PHATAK, SC; PILE, P; PLANINIC, M; BOUCHET, J; SCHUSTER, TR; PLOSKON, MA; CHEN, JH; PLUTA, J; VIDEBAEK, F; PLYKU, D; POLJAK, N; POSKANZER, AM; HAN, LX; POTUKUCHI, BVKS; POWELL, CB; PRINDLE, D; PRUNEAU, C; CHEN, JY; SEELE, J; PRUTHI, NK; REDWINE, R; BRAIDOT, E; PUJAHARI, PR; PUTSCHKE, J; QIU, H; RANIWALA, R; HARRIS, JW; RANIWALA, S; CHENG, J; SEGER, J; SELYUZHENKOV, I; SEYBOTH, P; BIELCIK, J; BRUNA, E; LLOPE, WJ; SHAHALIEV, E; BAUMGART, S; SHAO, M; SHARMA, M; CHERNEY, M; SHI, SS; SICHTERMANN, EP; SIMON, F; SINGARAJU, RN; VIYOGI, YP; SKOBY, MJ; SMIRNOV, N; LONGACRE, RS; SORENSEN, P; BUELTMANN, S; CHIKANIAN, A; HEPPELMANN, S; SOWINSKI, J; SPINKA, HM; SRIVASTAVA, B; STANISLAUS, TDS; VOKAL, S; STASZAK, D; STEVENS, JR; STOCK, R; LOVE, WA; MANWEILER, R; STRIKHANOV, M; STRINGFELLOW, B; SUAIDE, AAP; HIRSCH, A; BUNZAROV, I; SUAREZ, MC; SANCHEZ, MCD; SUBBA, NL; SUMBERA, M; SUN, XM; CHOI, KE; SUN, Y; LU, Y; SUN, Z; SURROW, B; SVIRIDA, DN; SYMONS, TJM; HJORT, E; VOLOSHIN, SA; DE TOLEDO, AS; BURTON, TP; CHRISTIE, W; TAKAHASHI, J; TANG, AH; TANG, Z; LUKASHOV, EV; TARINI, LH; TARNOWSKY, T; THEIN, D; THOMAS, JH; WADA, M; TIAN, J; TRAM, VN; HOFFMAN, AM; TIMMINS, AR; TIMOSHENKO, S; CAI, XZ; TLUSTY, D; LUO, X; TOKAREV, M; WALKER, M; WANG, F; WANG, G; HAYS-WEHLE, JP; HUANG, B; REED, R; WANG, H; GROSNICK, D; WANG, JS; WANG, Q; WANG, XL; WANG, Y; CATU, O; WEBB, G; CHUNG, P; WEBB, JC; WESTFALL, GD; RITTER, HG; WHITTEN, C; HUANG, HZ; MA, YG; WIEMAN, H; WISSINK, SW; WITT, R; WU, YF; CLARKE, RF; XIE, W; XU, H; CEBRA, D; ROBERTS, JB; XU, N; XU, QH; XU, W; MAHAPATRA, DP; HUMANIC, TJ; XU, Y; JACOBS, P; XU, Z; XUE, L; YANG, Y; YEPES, P; BRANDIN, AV; YIP, K; YOO, IK; CENDEJAS, R; YUE, Q; MAJKA, R; CODRINGTON, MJM; ZAWISZA, M; HUO, L; ZBROSZCZYK, H; ZHAN, W; ZHANG, JB; ROGACHEVSKIY, OV; ZHANG, S; ZHANG, WM; ZHANG, XP; ZHANG, Y; CORLISS, R; ZHANG, ZP; MALL, OI; CERVANTES, MC; ZHAO, J; BEAVIS, DR; ZHONG, C; ROMERO, JL; ZHOU, J; CRAMER, JG; CRAWFORD, HJ; DAS, D; MARGETIS, S; TRENTALANGE, S; DASH, S; LIU, J; LEYVA, AD; DE SILVA, LC; DEBBE, RR; DEDOVICH, TG; JACOBS, WW; DEREVSCHIKOV, AA; DE SOUZA, RD; DIDENKO, L; TRIBBLE, RE; DJAWOTHO, P; MARKERT, C; ROY, C; DOGRA, SM; DONG, X; DRACHENBERG, JL; DRAPER, JE; DUNLOP, JC; MAZUMDAR, MRD; JENA, C; TSAI, OD; EFIMOV, LG; ELHALHULI, E; ELNIMR, M; RUAN, L; MASUI, H; ENGELAGE, J; EPPLEY, G; ERAZMUS, B; ESTIENNE, M; EUN, L; HOFFMANN, GW; EVDOKIMOV, O; FACHINI, P; JIN, F; FATEMI, R; SAHOO, R; FEDORISIN, J; MATIS, HS; FERSCH, RG; FILIP, P; FINCH, E; ULERY, J; FINE, V; FISYAK, Y; GAGLIARDI, CA; GANGADHARAN, DR; GANTI, MS; SAKAI, S; JONES, CL; GARCIA-SOLIS, EJ; GUERTIN, SM; GEROMITSOS, A; ULLRICH, T; GEURTS, F
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 root 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 p(T) >= 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 p(T).
URI: http://dx.doi.org/10.1103/PhysRevLett.105.202301
http://dspace.library.iitb.ac.in/xmlui/handle/10054/16514
http://hdl.handle.net/10054/16514
Date: 2010


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