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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<A(CP)(b-->sgamma)<+0.11 at 90% confidence level. RI Patrignani, Claudia/C-5223-2009; Lista, Luca/C-5719-2008; Bellini, Fabio/D-1055-2009; crosetti, nanni/H-3040-2011; Roe, Natalie/A-8798-2012; Neri, Nicola/G-3991-2012; Monge, Maria Roberta/G-9127-2012; Sarti, Alessio/I-2833-2012

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

ANGELINI, CARLO;BATIGNANI, GIOVANNI;BETTARINI, STEFANO;CALDERINI, GIOVANNI;FORTI, FRANCESCO;GIORGI, MARCELLO;PAOLONI, EUGENIO;RIZZO, GIULIANA;
2004

Abstract

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 -0.06sgamma)<+0.11 at 90% confidence level. RI Patrignani, Claudia/C-5223-2009; Lista, Luca/C-5719-2008; Bellini, Fabio/D-1055-2009; crosetti, nanni/H-3040-2011; Roe, Natalie/A-8798-2012; Neri, Nicola/G-3991-2012; Monge, Maria Roberta/G-9127-2012; Sarti, Alessio/I-2833-2012
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, Carlo; Batignani, Giovanni; Bettarini, Stefano; Bondioli, M; Bucci, F; Calderini, Giovanni; Carpinelli, M; Gamba, Vd; Forti, Francesco; Giorgi, Marcello; Lusiani, A; Marchiori, G; Martinez Vidal, F; Morganti, M; Neri, N; Paoloni, Eugenio; Rama, M; Rizzo, Giuliana; 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., J; Wu, Sl; Yu, Z; Neal, Hpe; Li, H; Liu, R; Mihalyi, A; Mohapatra, Ak; Pan, Y; Prepost, R; Tan, P; von Wimmersperg Toeller, Jh; Wu, J; Wu, Sl; Yu, Z; Greene, Mg; Neal Her, T; Yamashita, T; Yamamoto, K; Wan, Z; Wang, Mj; Wang, Sm; Warburton, A; Ward, B; Waschke, S; Waters, D; Watts, T; Weber, M; Wester, Wc; Whitehouse, B; Wicklund, Ab; Wicklund, E; Williams, Hh; Wilson, P; Winer, Bl; Wittich, P; Wolbers, S; Wolter, M; Worcester, M; Worm, S; Wright, T; Wu, X; Wurthwein, F; Wyatt, A; Yagil, A; Yang, Uk; Yao, W; Yeh, Gp; Yi, K; Yoh, J; Yoon, P; Yorita, K; Yoshida, T; Yu, I; Yu, S; Yu, Z; Yun, Jc; Zanello, L; Zanetti, A; Zaw, I; Zetti, F; Zhou, J; Zsenei, A; Zucchelli, S.
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11568/187502
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