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Measurement of the direct CP asymmetry in b -> s gamma decays

Title: Measurement of the direct CP asymmetry in b -> s gamma decays
Authors: Aubert, B; Barate, R; Boutigny, D; Couderc, F; Gaillard, JM; Hicheur, A; Karyotakis, Y; Lees, JP; Tisserand, V; Zghiche, A; Palano, A; Pompili, A; Chen, JC; Qi, ND; Rong, G; Wang, P; Zhu, YS; Eigen, G; Ofte, I; Stugu, B; Abrams, GS; Borgland, AW; Breon, AB; Brown, DN; Button-Shafer, J; Cahn, RN; Charles, E; Day, CT; Gill, MS; Gritsan, AV; Groysman, Y; Jacobsen, RG; Kadel, RW; Kadyk, J; Kerth, LT; Kolomensky, YG; Kukartsev, G; LeClerc, C; Lynch, G; Merchant, AM; Mir, LM; Oddone, PJ; Orimoto, TJ; Pripstein, M; Roe, NA; Ronan, MT; Shelkov, VG; Wenzel, WA; Ford, K; Harrison, TJ; Hawkes, CM; Morgan, SE; Watson, AT; Fritsch, M; Goetzen, K; Held, T; Koch, H; Lewandowski, B; Pelizaeus, M; Steinke, M; Boyd, JT; Chevalier, N; Cottingham, WN; Kelly, MP; Latham, TE; Wilson, FF; Cuhadar-Donszelmann, T; Hearty, C; Knecht, NS; Mattison, TS; McKenna, JA; Thiessen, D; Khan, A; Kyberd, P; Teodorescu, L; Blinov, VE; Bukin, AD; Druzhinin, VP; Golubev, VB; Ivanchenko, VN; Kravchenko, EA; Onuchin, AP; Serednyakov, SI; Skovpen, YI; Solodov, EP; Yushkov, AN; Best, D; Bruinsma, M; Chao, M; Eschrich, I; Kirkby, D; Lankford, AJ; Mandelkern, M; Mommsen, RK; Roethel, W; Stoker, DP; Buchanan, C; Hartfiel, BL; Gary, JW; Shen, BC; Wang, K; del Re, D; Hadavand, HK; Hill, EJ; MacFarlane, DB; Paar, HP; Rahatlou, S; Sharma, V; Berryhill, JW; Campagnari, C; Dahmes, B; Levy, SL; Long, O; Lu, A; Mazur, MA; Richman, JD; Verkerke, W; Beck, TW; Eisner, AM; Heusch, CA; Lockman, WS; Schalk, T; Schmitz, RE; Schumm, BA; Seiden, A; Spradlin, P; Williams, DC; Wilson, MG; Albert, J; Chen, E; Dubois-Felsmann, GP; Dvoretskii, A; Hitlin, DG; Narsky, I; Piatenko, T; Porter, FC; Ryd, A; Samuel, A; Yang, S; Jayatilleke, S; Mancinelli, G; Meadows, BT; Sokoloff, MD; Abe, T; Blanc, F; Bloom, P; Chen, S; Ford, WT; Nauenberg, U; Olivas, A; Rankin, P; Smith, JG; Zhang, J; Zhang, L; Chen, A; Harton, JL; Soffer, A; Toki, WH; Wilson, RJ; Zeng, QL; Altenburg, D; Brandt, T; Brose, J; Colberg, T; Dickopp, M; Feltresi, E; Hauke, A; Lacker, HM; Maly, E; Muller-Pfefferkorn, R; Nogowski, R; Otto, S; Petzold, A; Schubert, J; Schubert, KR; Schwierz, R; Spaan, B; Sundermann, JE; Bernard, D; Bonneaud, GR; Brochard, F; Grenier, P; Schrenk, S; Thiebaux, C; Vasileiadis, G; Verderi, M; Bard, DJ; Clark, PJ; Lavin, D; Muheim, F; Playfer, S; Xie, Y; Andreotti, M; Azzolini, V; Bettoni, D; Bozzi, C; Calabrese, R; Cibinetto, G; Luppi, E; Negrini, M; Piemontese, L; Sarti, A; Treadwell, E; Baldini-Ferroli, R; Calcaterra, A; de Sangro, R; Finocchiaro, G; Patteri, P; Piccolo, M; Zallo, A; Buzzo, A; Capra, R; Contri, R; Crosetti, G; Lo Vetere, M; Macri, M; Monge, MR; Passaggio, S; Patrignani, C; Robutti, E; Santroni, A; Tosi, S; Bailey, S; Brandenburg, G; Morii, M; Won, E; Dubitzky, RS; Langenegger, U; Bhimji, W; Bowerman, DA; Dauncey, PD; Egede, U; Gaillard, JR; Morton, GW; Nash, JA; Taylor, GP; Grenier, GJ; Mallik, U; Cochran, J; Crawley, HB; Lamsa, J; Meyer, WT; Prell, S; Rosenberg, EI; Yi, J; Davier, M; Grosdidier, G; Hocker, A; Laplace, S; Diberder, FL; Lepeltier, V; Lutz, AM; Petersen, TC; Plaszczynski, S; Schune, MH; Tantot, L; Wormser, G; Cheng, CH; Lange, DJ; Simani, MC; Wright, DM; Bevan, AJ; Coleman, JP; Fry, JR; Gabathuler, E; Gamet, R; Parry, RJ; Payne, DJ; Sloane, RJ; Touramanis, C; Back, JJ; Cormack, CM; Harrison, PF; Mohanty, GB; Brown, CL; Cowan, G; Flack, RL; Flaecher, HU; Green, MG; Marker, CE; McMahon, TR; Ricciardi, S; Salvatore, F; Vaitsas, G; Winter, MA; Brown, D; Davis, CL; Allison, J; Barlow, NR; Barlow, RJ; Hart, PA; Hodgkinson, MC; Lafferty, GD; Lyon, AJ; Williams, JC; Farbin, A; Hulsbergen, WD; Jawahery, A; Kovalskyi, D; Lae, CK; Lillard, V; Roberts, DA; Blaylock, G; Dallapiccola, C; Flood, KT; Hertzbach, SS; Kofler, R; Koptchev, VB; Moore, TB; Saremi, S; Staengle, H; Willocq, S; Cowan, R; Sciolla, G; Taylor, F; Yamamoto, RK; Mangeol, DJJ; Patel, PM; Robertson, SH; Lazzaro, A; Palombo, F; Bauer, JM; Cremaldi, L; Eschenburg, V; Godang, R; Kroeger, R; Reidy, J; Sanders, DA; Summers, DJ; Zhao, HW; Brunet, S; Cote, D; Taras, P; Nicholson, H; Cavallo, N; Fabozzi, F; Gatto, C; Lista, L; Monorchio, D; Paolucci, P; Piccolo, D; Sciacca, C; Baak, M; Bulten, H; Raven, G; Wilden, L; Jessop, CP; LoSecco, JM; Gabriel, TA; Allmendinger, T; Brau, B; Gan, KK; Honscheid, K; Hufnagel, D; Kagan, H; Kass, R; Pulliam, T; Rahimi, AM; Ter-Antonyan, R; Wong, QK; Brau, J; Frey, R; Igonkina, O; Potter, CT; Sinev, NB; Strom, D; Torrence, E; Colecchia, F; Dorigo, A; Galeazzi, F; Margoni, M; Morandin, M; Posocco, M; Rotondo, M; Simonetto, F; Stroili, R; Tiozzo, G; Voci, C; Benayoun, M; Briand, H; Chauveau, J; David, P; de la Vaissiere, C; Buono, LD; Hamon, O; John, MJJ; Leruste, P; Ocariz, J; Pivk, M; Roos, L; T'Jampens, S; Therin, G; Manfredi, PF; Re, V; Behera, PK; Gladney, L; Guo, QH; Panetta, J; Anulli, F; Biasini, M; Peruzzi, IM; Pioppi, M; Angelini, C; Batignani, G; Bettarini, S; Bondioli, M; Bucci, F; Calderini, G; Carpinelli, M; Gamba, VD; Forti, F; Giorgi, MA; Lusiani, A; Marchiori, G; Martinez-Vidal, F; Morganti, M; Neri, N; Paoloni, E; Rama, M; Rizzo, G; Sandrelli, F; Walsh, J; Haire, M; Judd, D; Paick, K; Wagoner, DE; Danielson, N; Elmer, P; Lau, YP; Lu, C; Miftakov, V; Olsen, J; Smith, AJS; Telnov, AV; Bellini, F; Cavoto, G; Faccini, R; Ferrarotto, F; Ferroni, F; Gaspero, M; Gioi, LL; Mazzoni, MA; Morganti, S; Pierini, M; Piredda, G; Tehrani, FS; Voena, C; Christ, S; Wagner, G; Waldi, R; Adye, T; Groot, ND; Franek, B; Geddes, NI; Gopal, GP; Olaiya, EO; Aleksan, R; Emery, S; Gaidot, A; Ganzhur, SF; Giraud, PF; de Monchenault, GH; Kozanecki, W; Langer, M; Legendre, M; London, GW; Mayer, B; Schott, G; Vasseur, G; Yeche, C; Zito, M; Purohit, MV; Weidemann, AW; Yumiceva, FX; Aston, D; Bartoldus, R; Berger, N; Boyarski, AM; Buchmueller, OL; Convery, MR; Cristinziani, M; Nardo, GD; Dong, D; Dorfan, J; Dujmic, D; Dunwoodie, W; Elsen, EE; Fan, S; Field, RC; Glanzman, T; Gowdy, SJ; Hadig, T; Halyo, V; Hast, C; Hryn'ova, T; Innes, WR; Kelsey, MH; Kim, P; Kocian, ML; Leith, DWGS; Libby, J; Luitz, S; Luth, V; Lynch, HL; Marsiske, H; Messner, R; Muller, DR; O'Grady, CP; Ozcan, VE; Perazzo, A; Perl, M; Petrak, S; Ratcliff, BN; Roodman, A; Salnikov, AA; Schindler, RH; Schwiening, J; Simi, G; Snyder, A; Soha, A; Stelzer, J; Su, D; Sullivan, MK; Va'vra, J; Wagner, SR; Weaver, M; Weinstein, AJR; Wisniewski, WJ; Wittgen, M; Wright, DH; Yarritu, AK; Young, CC; Burchat, PR; Edwards, AJ; Meyer, TI; Petersen, BA; Roat, C; Ahmed, S; Alam, MS; Ernst, JA; Saeed, MA; Saleem, M; Wappler, FR; Bugg, W; Krishnamurthy, M; Spanier, SM; Eckmann, R; Kim, H; Ritchie, JL; Satpathy, A; Schwitters, RF; Izen, JM; Kitayama, I; Lou, XC; Ye, S; Bianchi, F; Bona, M; Gallo, F; Gamba, D; Borean, C; Bosisio, L; Cartaro, C; Cossutti, F; Della Ricca, G; Dittongo, S; Grancagnolo, S; Lanceri, L; Poropat, P; Vitale, L; Vuagnin, G; Panvini, RS; Banerjee, S; Brown, CM; Fortin, D; Jackson, PD; Kowalewski, R; Roney, JM; Band, HR; Dasu, S; Datta, M; Eichenbaum, AM; Graham, M; Hollar, JJ; Johnson, JR; Kutter, PE; Li, H; Liu, R; Lodovico, FD; Mihalyi, A; Mohapatra, AK; Pan, Y; Prepost, R; Rubin, AE; Sekula, SJ; Tan, P; von Wimmersperg-Toeller, JH; Wu, J; Wu, SL; Yu, Z; Neal, H; BaBar Collaboration
Source: PHYS REV LETT , 93 (2) , Article 021804. (2004)
Publisher Information: AMERICAN PHYSICAL SOC
Publication Year: 2004
Collection: University College London: UCL Discovery
Subject Terms: RARE B-DECAYS
Description: We describe a measurement of the direct CP asymmetry between inclusive b-->sgamma and (b) over bar -->(s) over bar gamma decays. This asymmetry is expected to be less than 0.01 in the standard model, but could be enhanced up to about 0.10 by new physics contributions. We use a sample of 89x10(6) B (B) over bar pairs recorded with the BABAR detector at SLAC PEP-II, from which we reconstruct a set of 12 exclusive b-->sgamma final states containing one charged or neutral kaon and one to three pions. We measure an asymmetry of A(CP)(b-->sgamma)=0.025+/-0.050(stat)+/-0.015(syst), corresponding to an allowed range of -0.06 sgamma)
Document Type: article in journal/newspaper
File Description: application/pdf
Language: English
Relation: https://discovery.ucl.ac.uk/id/eprint/1303667/1/1303667.pdf; https://discovery.ucl.ac.uk/id/eprint/1303667/
Availability: https://discovery.ucl.ac.uk/id/eprint/1303667/1/1303667.pdf; https://discovery.ucl.ac.uk/id/eprint/1303667/
Rights: open
Accession Number: edsbas.54B646B9
Database: BASE