We search for the decays B- -> phi K- gamma and B0bar -> phi K0bar gamma in a data sample of 228 million BBbar pairs collected at the Upsilon(4S) resonance with the BaBar detector. We measure the branching fraction B(B- -> phi K- gamma) = (3.5 +/- 0.6 +/- 0.4) x 10^-6 and set an upper limit B(B0bar -> phi K0bar gamma) < 2.7 x 10^-6 at the 90% confidence level. We also measure the direct CP asymmetry in B- -> phi K- gamma, A_CP = (-26 +/- 14 +/- 5)%. The uncertainties are statistical and systematic, respectively.

Measurement of B Decays to phi K gamma / B. AUBERT, R. BARATE, D. BOUTIGNY, F. COUDERC, Y. KARYOTAKIS, J.P. LEES, V. POIREAU, V. TISSERAND, A. ZGHICHE, E. GRAUGES, A. PALANO, M. PAPPAGALLO, A. POMPILI, J.C. CHEN, N.D. QI, G. RONG, P. WANG, Y.S. ZHU, G. EIGEN, I. OFTE, B. STUGU, G.S. ABRAMS, M. BATTAGLIA, D. BEST, A.B. BREON, D.N. BROWN, J. BUTTON-SHAFER, R.N. CAHN, E. CHARLES, C.T. DAY, M.S. GILL, A.V. GRITSAN, Y. GROYSMAN, R.G. JACOBSEN, R.W. KADEL, J. KADYK, L.T. KERTH, Y.G. KOLOMENSKY, G. KUKARTSEV, G. LYNCH, L.M. MIR, P.J. ODDONE, T.J. ORIMOTO, M. PRIPSTEIN, N.A. ROE, M.T. RONAN, W.A. WENZEL, M. BARRETT, K.E. FORD, T.J. HARRISON, A.J. HART, C.M. HAWKES, S.E. MORGAN, A.T. WATSON, M. FRITSCH, K. GOETZEN, T. HELD, H. KOCH, B. LEWANDOWSKI, M. PELIZAEUS, K. PETERS, T. SCHROEDER, M. STEINKE, J.T. BOYD, J.P. BURKE, N. CHEVALIER, W.N. COTTINGHAM, T. CUHADAR-DONSZELMANN, B.G. FULSOM, C. HEARTY, N.S. KNECHT, T.S. MATTISON, J.A. MCKENNA, A. KHAN, P. KYBERD, M. SALEEM, L. TEODORESCU, A.E. BLINOV, V.E. BLINOV, A.D. BUKIN, V.P. DRUZHININ, V.B. GOLUBEV, E.A. KRAVCHENKO, A.P. ONUCHIN, S.I. SEREDNYAKOV, Y.I. SKOVPEN, E.P. SOLODOV, A.N. YUSHKOV, M. BONDIOLI, M. BRUINSMA, M. CHAO, S. CURRY, I. ESCHRICH, D. KIRKBY, A.J. LANKFORD, P. LUND, M. MANDELKERN, R.K. MOMMSEN, W. ROETHEL, D.P. STOKER, C. BUCHANAN, B.L. HARTFIEL, S.D. FOULKES, J.W. GARY, O. LONG, B.C. SHEN, K. WANG, L. ZHANG, D. DEL RE, H.K. HADAVAND, E.J. HILL, D.B. MACFARLANE, H.P. PAAR, S. RAHATLOU, V. SHARMA, J.W. BERRYHILL, C. CAMPAGNARI, A. CUNHA, B. DAHMES, T.M. HONG, M.A. MAZUR, J.D. RICHMAN, W. VERKERKE, T.W. BECK, A.M. EISNER, C.J. FLACCO, C.A. HEUSCH, J. KROSEBERG, W.S. LOCKMAN, G. NESOM, T. SCHALK, B.A. SCHUMM, A. SEIDEN, P. SPRADLIN, D.C. WILLIAMS, M.G. WILSON, J. ALBERT, E. CHEN, G.P. DUBOIS-FELSMANN, A. DVORETSKII, D.G. HITLIN, J.S. MINAMORA, I. NARSKY, T. PIATENKO, F.C. PORTER, A. RYD, A. SAMUEL, R. ANDREASSEN, G. MANCINELLI, B.T. MEADOWS, M.D. SOKOLOFF, F. BLANC, P.C. BLOOM, S. CHEN, W.T. FORD, J.F. HIRSCHAUER, A. KREISEL, U. NAUENBERG, A. OLIVAS, W.O. RUDDICK, J.G. SMITH, K.A. ULMER, S.R. WAGNER, J. ZHANG, A. CHEN, E.A. ECKHART, A. SOFFER, W.H. TOKI, R.J. WILSON, Q. ZENG, D. ALTENBURG, E. FELTRESI, A. HAUKE, B. SPAAN, T. BRANDT, J. BROSE, M. DICKOPP, V. KLOSE, H.M. LACKER, R. NOGOWSKI, S. OTTO, A. PETZOLD, J. SCHUBERT, K.R. SCHUBERT, R. SCHWIERZ, J.E. SUNDERMANN, D. BERNARD, G.R. BONNEAUD, P. GRENIER, S. SCHRENK, C. THIEBAUX, G. VASILEIADIS, M. VERDERI, D.J. BARD, P.J. CLARK, W. GRADL, F. MUHEIM, S. PLAYFER, Y. XIE, M. ANDREOTTI, D. BETTONI, C. BOZZI, R. CALABRESE, G. CIBINETTO, E. LUPPI, M. NEGRINI, L. PIEMONTESE, F. ANULLI, R. BALDINI-FERROLI, A. CALCATERRA, R. DE SANGRO, G. FINOCCHIARO, P. PATTERI, I.M. PERUZZI, M. PICCOLO, A. ZALLO, A. BUZZO, R. CAPRA, R. CONTRI, M.L. VETERE, M.M. MACRI, M.R. MONGE, S. PASSAGGIO, C. PATRIGNANI, E. ROBUTTI, A. SANTRONI, S. TOSI, G. BRANDENBURG, K.S. CHAISANGUANTHUM, M. MORII, E. WON, J. WU, R.S. DUBITZKY, U. LANGENEGGER, J. MARKS, S. SCHENK, U. UWER, W. BHIMJI, D.A. BOWERMAN, P.D. DAUNCEY, U. EGEDE, R.L. FLACK, J.R. GAILLARD, J.A. NASH, M.B. NIKOLICH, W.P. VAZQUEZ, X. CHAI, M.J. CHARLES, W.F. MADER, U. MALLIK, V. ZIEGLER, J. COCHRAN, H.B. CRAWLEY, V. EYGES, W.T. MEYER, S. PRELL, E.I. ROSENBERG, A.E. RUBIN, J.I. YI, G. SCHOTT, N. ARNAUD, M. DAVIER, X. GIROUX, G. GROSDIDIER, A. HOCKER, F.L. DIBERDER, V. LEPELTIER, A.M. LUTZ, A. OYANGUREN, T.C. PETERSEN, S. PLASZCZYNSKI, S. RODIER, P. ROUDEAU, M.H. SCHUNE, A. STOCCHI, G. WORMSER, C.H. CHENG, D.J. LANGE, M.C. SIMANI, D.M. WRIGHT, A.J. BEVAN, C.A. CHAVEZ, I.J. FORSTER, J.R. FRY, E. GABATHULER, R. GAMET, K.A. GEORGE, D.E. HUTCHCROFT, R.J. PARRY, D.J. PAYNE, K.C. SCHOFIELD, C. TOURAMANIS, C.M. CORMACK, F.D. LODOVICO, W. MENGES, R. SACCO, C.L. BROWN, G. COWAN, H.U. FLAECHER, M.G. GREEN, D.A. HOPKINS, P.S. JACKSON, T.R. MCMAHON, S. RICCIARDI, F. SALVATORE, D.N. BROWN, C.L. DAVIS, J. ALLISON, N.R. BARLOW, R.J. BARLOW, C.L. EDGAR, M.C. HODGKINSON, M.P. KELLY, G.D. LAFFERTY, M.T. NAISBIT, J.C. WILLIAMS, C. CHEN, W.D. HULSBERGEN, A. JAWAHERY, D. KOVALSKYI, C.K. LAE, D.A. ROBERTS, G. SIMI, G. BLAYLOCK, C. DALLAPICCOLA, S.S. HERTZBACH, R. KOFLER, X. LI, T.B.MOORE, S. SAREMI, H. STAENGLE, S.Y. WILLOCQ, R. COWAN, K. KOENEKE, G. SCIOLLA, S.J. SEKULA, M. SPITZNAGEL, F. TAYLOR, R.K. YAMAMOTO, H. KIM, P.M. PATEL, S.H. ROBERTSON, A. LAZZARO, V. LOMBARDO, F. PALOMBO, J.M. BAUER, L. CREMALDI, V. ESCHENBURG, R. GODANG, R. KROEGER, J. REIDY, D.A. SANDERS, D.J. SUMMERS, H.W. ZHAO, S. BRUNET, D. COTE, P. TARAS, F.B. VIAUD, H. NICHOLSON, N. CAVALLO, G.D. NARDO, F. FABOZZI, C. GATTO, L. LISTA, D. MONORCHIO, P. PAOLUCCI, D. PICCOLO, C. SCIACCA, M. BAAK, H. BULTEN, G. RAVEN, H.L. SNOEK, L. WILDEN, C.P. JESSOP, J.M. LOSECCO, T. ALLMENDINGER, G. BENELLI, K.K. GAN, K. HONSCHEID, D. HUFNAGEL, P.D. JACKSON, H. KAGAN, R. KASS, T. PULLIAM, A.M. RAHIMI, R. TER-ANTONYAN, Q.K. WONG, N.L. BLOUNT, J. BRAU, R. FREY, O. IGONKINA, M. LU, C.T. POTTER, R. RAHMAT, N.B. SINEV, D. STROM, J. STRUBE, E. TORRENCE, F. GALEAZZI, M. MARGONI, M. MORANDIN, M. POSOCCO, M. ROTONDO, F. SIMONETTO, R. STROILI, C. VOCI, M. BENAYOUN, H. BRIAND, J. CHAUVEAU, P. DAVID, L.D. BUONO, C. DE LA VAISSIERE, O. HAMON, M.J.J. JOHN, P. LERUSTE, J. MALCLES, J. OCARIZ, L. ROOS, G. THERIN, P.K. BEHERA, L. GLADNEY, Q.H. GUO, J. PANETTA, M. BIASINI, R. COVARELLI, S. PACETTI, M. PIOPPI, C. ANGELINI, G. BATIGNANI, S. BETTARINI, F. BUCCI, G. CALDERINI, M. CARPINELLI, R. CENCI, F. FORTI, M.A. GIORGI, A. LUSIANI, G. MARCHIORI, M. MORGANTI, N. NERI, E. PAOLONI, M. RAMA, G. RIZZO, J. WALSH, M. HAIRE, D. JUDD, D.E. WAGONER, J. BIESIADA, N. DANIELSON, P. ELMER, Y.P. LAU, C. LU, J. OLSEN, A.J.S. SMITH, A.V. TELNOV, F. BELLINI, G. CAVOTO, A. D'ORAZIO, E. DI MARCO, R. FACCINI, F. FERRAROTTO, F. FERRONI, M. GASPERO, L. LI GIOI, M.A. MAZZONI, S. MORGANTI, G. PIREDDA, F. POLCI, F.S. TEHRANI, C. VOENA, H. SCHRODER, R. WALDI, T. ADYE, N. DE GROOT, B. FRANEK, G.P. GOPAL, E.O. OLAIYA, F.F. WILSON, R. ALEKSAN, S. EMERY, A. GAIDOT, S.F. GANZHUR, G. GRAZIANI, G.H. DE MONCHENAULT, W. KOZANECKI, M. LEGENDRE, G.W. LONDON, B. MAYER, G. VASSEUR, C. YECHE, M. ZITO, M.V. PUROHIT, A.W. WEIDEMANN, J.R. WILSON, F.X. YUMICEVA, T. ABE, M.T. ALLEN, D. ASTON, R. BARTOLDUS, N. BERGER, A.M. BOYARSKI, O.L. BUCHMUELLER, R. CLAUS, J.P. COLEMAN, M.R. CONVERY, M. CRISTINZIANI, J.C. DINGFELDER, D. DONG, J. DORFAN, D. DUJMIC, W. DUNWOODIE, S. FAN, R.C. FIELD, T. GLANZMAN, S.J. GOWDY, T. HADIG, V. HALYO, C. HAST, T. HRYN'OVA, W.R. INNES, M.H. KELSEY, P. KIM, M.L. KOCIAN, D.W.G.S. LEITH, J. LIBBY, S. LUITZ, V. LUTH, H.L. LYNCH, H. MARSISKE, R. MESSNER, D.R. MULLER, C.P. O'GRADY, V.E. OZCAN, A. PERAZZO, M. PERL, B.N. RATCLIFF, A. ROODMAN, A.A. SALNIKOV, R.H. SCHINDLER, J. SCHWIENING, A. SNYDER, J. STELZER, D. SU, M.K. SULLIVAN, K. SUZUKI, S.K. SWAIN, J.M. THOMPSON, J. VA'VRA, N. VAN BAKEL, M. WEAVER, A.J.R. WEINSTEIN, W.J. WISNIEWSKI, M. WITTGEN, D.H. WRIGHT, A.K. YARRITU, K. YI, C.C. YOUNG, P.R. BURCHAT, A.J. EDWARDS, S.A. MAJEWSKI, B.A. PETERSEN, C. ROAT, M. AHMED, S. AHMED, M.S. ALAM, R. BULA, J.A. ERNST, M.A. SAEED, F.R. WAPPLER, S.B. ZAIN, W. BUGG, M. KRISHNAMURTHY, S.M. SPANIER, R. ECKMANN, J.L. RITCHIE, A. SATPATHY, R.F. SCHWITTERS, J.M. IZEN, I. KITAYAMA, X.C. LOU, S. YE, F. BIANCHI, M. BONA, F. GALLO, D. GAMBA, M. BOMBEN, L. BOSISIO, C. CARTARO, F. COSSUTTI, G. DELLA RICCA, S. DITTONGO, S. GRANCAGNOLO, L. LANCERI, L. VITALE, V. AZZOLINI, F. MARTINEZ-VIDAL, R.S. PANVINI, S. BANERJEE, B. BHUYAN, C.M. BROWN, D. FORTIN, K. HAMANO, R. KOWALEWSKI, J.M. RONEY, R.J. SOBIE, J.J. BACK, P.F. HARRISON, T.E. LATHAM, G.B. MOHANTY, H.R. BAND, X. CHEN, B. CHENG, S. DASU, M. DATTA, A.M. EICHENBAUM, K.T. FLOOD, M.T. GRAHAM, J.J. HOLLAR, J.R. JOHNSON, P.E. KUTTER, H. LI, R. LIU, B. MELLADO, A. MIHALYI, A.K. MOHAPATRA, Y. PAN, M. PIERINI, R. PREPOST, P. TAN, S.L. WU, Z. YU, H. NEAL. - In: PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY. - ISSN 1550-7998. - 75:5(2007), pp. 051102.051102-1-051102.051102-8.

Measurement of B Decays to phi K gamma

A. LAZZARO;V. LOMBARDO;F. PALOMBO;N. NERI;
2007

Abstract

We search for the decays B- -> phi K- gamma and B0bar -> phi K0bar gamma in a data sample of 228 million BBbar pairs collected at the Upsilon(4S) resonance with the BaBar detector. We measure the branching fraction B(B- -> phi K- gamma) = (3.5 +/- 0.6 +/- 0.4) x 10^-6 and set an upper limit B(B0bar -> phi K0bar gamma) < 2.7 x 10^-6 at the 90% confidence level. We also measure the direct CP asymmetry in B- -> phi K- gamma, A_CP = (-26 +/- 14 +/- 5)%. The uncertainties are statistical and systematic, respectively.
radiative B decays
Settore FIS/01 - Fisica Sperimentale
2007
http://link.aps.org/abstract/PRD/v75/e051102
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2434/39542
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