1. Evidence for the rare decay B -> K(*)l(+)l(-) and measurement of the B -> Kl(+)l(-) branching fraction
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Aubert, B, Barate, R, Boutigny, D, Gaillard, JM, Hicheur, A, Karyotakis, Y, Lees, JP, Robbe, P, Tisserand, V, Zghiche, A, Palano, A, Roethel, W, Stoker, DP, Buchanan, C, Hartfiel, BL, Shen, BC, del Re, D, Hadavand, HK, Hill, EJ, MacFarlane, DB, Paar, HP, Pompili, A, Rahatlou, S, Sharma, V, Berryhill, JW, Campagnari, C, Dahmes, B, Kuznetsova, N, Levy, SL, Long, O, Lu, A, Mazur, MA, Chen, JC, Richman, JD, Verkerke, W, Beck, TW, Beringer, J, Eisner, AM, Heusch, CA, Lockman, WS, Schalk, T, Schmitz, RE, Schumm, BA, Qi, ND, Seiden, A, Turri, M, Walkowiak, W, Williams, DC, Wilson, MG, Albert, J, Chen, E, Dubois-Felsmann, GP, Dvoretskii, A, Hitlin, DG, Rong, G, Narsky, I, Porter, FC, Ryd, A, Samuel, A, Yang, S, Jayatilleke, S, Mancinelli, G, Meadows, BT, Sokoloff, MD, Abe, T, Wang, P, Blanc, F, Bloom, P, Chen, S, Clark, PJ, Ford, WT, Nauenberg, U, Olivas, A, Rankin, P, Roy, J, Smith, JG, Zhu, YS, van Hoek, WC, Zhang, L, Harton, JL, Hu, T, Soffer, A, Toki, WH, Wilson, RJ, Zhang, J, Altenburg, D, Brandt, T, Eigen, G, Brose, J, Colberg, T, Dickopp, M, Dubitzky, RS, Hauke, A, Lacker, HM, Maly, E, Muller-Pfefferkorn, R, Nogowski, R, Otto, S, Ofte, I, Schubert, J, Schubert, KR, Schwierz, R, Spaan, B, Wilden, L, Bernard, D, Bonneaud, GR, Brochard, F, Cohen-Tanugi, J, Grenier, P, Stugu, B, Thiebaux, C, Vasileiadis, G, Verderi, M, Khan, A, Lavin, D, Muheim, F, Playfer, S, Swain, JE, Andreotti, M, Azzolini, V, Abrams, GS, Bettoni, D, Bozzi, C, Calabrese, R, Cibinetto, G, Luppi, E, Negrini, M, Piemontese, L, Sarti, A, Treadwell, E, Anulli, F, Borgland, AW, Baldini-Ferroli, R, Biasini, M, Calcaterra, A, de Sangro, R, Falciai, D, Finocchiaro, G, Patteri, P, Peruzzi, IM, Piccolo, M, Pioppi, M, Breon, AB, Zallo, A, Buzzo, A, Capra, R, Contri, R, Crosetti, G, Lo Vetere, M, Macri, M, Monge, MR, Passaggio, S, Patrignani, C, Brown, DN, Robutti, E, Santroni, A, Tosi, S, Bailey, S, Morii, M, Won, E, Bhimji, W, Bowerman, DA, Dauncey, PD, Egede, U, Button-Shafer, J, Eschrich, I, Gaillard, JR, Morton, GW, Nash, JA, Sanders, P, Taylor, GP, Grenier, GJ, Lee, SJ, Mallik, U, Cochran, J, Cahn, RN, Crawley, HB, Lamsa, J, Meyer, WT, Prell, S, Rosenberg, EI, Yi, J, Davier, M, Grosdidier, G, Hocker, A, Laplace, S, Charles, E, Le Diberder, F, Lepeltier, V, Lutz, AM, Petersen, TC, Plaszczynski, S, Schune, MH, Tantot, L, Wormser, G, Brigljevic, V, Cheng, CH, Day, CT, Lange, DJ, Wright, DM, Bevan, AJ, Coleman, JP, Fry, JR, Gabathuler, E, Gamet, R, Kay, M, Parry, RJ, Payne, DJ, Gill, MS, Sloane, RJ, Touramanis, C, Back, JJ, Harrison, PF, Shorthouse, HW, Strother, P, Vidal, PB, Brown, CL, Cowan, G, Flack, RL, Gritsan, AV, Flaecher, HU, George, S, Green, MG, Kurup, A, Marker, CE, McMahon, TR, Ricciardi, S, Salvatore, F, Vaitsas, G, Winter, MA, Groysman, Y, Brown, D, Davis, CL, Allison, J, Barlow, RJ, Forti, AC, Hart, PA, Hodgkinson, MC, Jackson, F, Lafferty, GD, Lyon, AJ, Jacobsen, RG, Weatherall, JH, Williams, JC, Farbin, A, Jawahery, A, Kovalskyi, D, Lae, CK, Lillard, V, Roberts, DA, Blaylock, G, Dallapiccola, C, Kadel, RW, Flood, KT, Hertzbach, SS, Kofler, R, Koptchev, VB, Moore, TB, Saremi, S, Staengle, H, Willocq, S, Cowan, R, Sciolla, G, Kadyk, J, Taylor, F, Yamamoto, RK, Mangeol, DJJ, Patel, PM, Lazzaro, A, Palombo, F, Bauer, JM, Cremaldi, L, Eschenburg, V, Godang, R, Kerth, LT, Kroeger, R, Reidy, J, Sanders, DA, Summers, DJ, Zhao, HW, Brunet, S, Cote-Ahern, D, Hast, C, Taras, P, Nicholson, H, Kolomensky, YG, Cartaro, C, Cavallo, N, De Nardo, G, Fabozzi, F, Gatto, C, Lista, L, Paolucci, P, Piccolo, D, Sciacca, C, Baak, MA, Kral, JF, Raven, G, LoSecco, JM, Gabriel, TA, Brau, B, Gan, KK, Honscheid, K, Hufnagel, D, Kagan, H, Kass, R, Pulliam, T, Kukartsev, G, Wong, QK, Brau, J, Frey, R, Potter, CT, Sinev, NB, Strom, D, Torrence, E, Colecchia, F, Dorigo, A, Galeazzi, F, LeClerc, C, Margoni, M, Morandin, M, Posocco, M, Rotondo, M, Simonetto, F, Stroili, R, Tiozzo, G, Voci, C, Benayoun, M, Briand, H, Levi, ME, Chauveau, J, David, P, de la Vaissiere, C, Del Buono, L, Hamon, O, John, MJJ, Leruste, P, Ocariz, J, Pivk, M, Roos, L, Lynch, G, Stark, J, T'Jampens, S, Therin, G, Manfredi, PF, Re, V, Behera, PK, Gladney, L, Guo, QH, Panetta, J, Angelini, C, Mir, LM, Batignani, G, Bettarini, S, Bondioli, M, Bucci, F, Calderini, G, Carpinelli, M, Del Gamba, V, Forti, F, Giorgi, MA, Lusiani, A, Oddone, PJ, Marchiori, G, Martinez-Vidal, F, Morganti, M, Neri, N, Paoloni, E, Rama, M, Rizzo, G, Sandrelli, F, Walsh, J, Haire, M, Orimoto, TJ, Judd, D, Paick, K, Wagoner, DE, Danielson, N, Elmer, P, Lu, C, Miftakov, V, Olsen, J, Smith, AJS, Tanaka, HA, Pripstein, M, Varnes, EW, Bellini, F, Cavoto, G, Faccini, R, Ferrarotto, F, Ferroni, F, Gaspero, M, Mazzoni, MA, Morganti, S, Pierini, M, Roe, NA, Piredda, G, Tehrani, FS, Voena, C, Christ, S, Wagner, G, Waldi, R, Adye, T, De Groot, N, Franek, B, Geddes, NI, Romosan, A, Gopal, GP, Olaiya, EO, Xella, SM, Aleksan, R, Emery, S, Gaidot, A, Ganzhur, SF, Giraud, PF, de Monchenault, GH, Kozanecki, W, Ronan, MT, Langer, M, Legendre, M, London, GW, Mayer, B, Schott, G, Vasseur, G, Yeche, C, Zito, M, Purohit, MV, Weidemann, AW, Shelkov, VG, Yumiceva, FX, Aston, D, Bartoldus, R, Berger, N, Boyarski, AM, Buchmueller, OL, Convery, MR, Coupal, DP, Dong, D, Dorfan, J, Telnov, AV, Dujmic, D, Dunwoodie, W, Field, RC, Glanzman, T, Gowdy, SJ, Grauges-Pous, E, Hadig, T, Halyo, V, Hryn'ova, T, Innes, WR, Wenzel, WA, Jessop, CP, Kelsey, MH, Kim, P, Kocian, ML, Langenegger, U, Leith, DWGS, Luitz, S, Luth, V, Lynch, HL, Marsiske, H, Ford, K, Messner, R, Muller, DR, O'Grady, CP, Ozcan, VE, Perazzo, A, Perl, M, Petrak, S, Ratcliff, BN, Robertson, SH, Roodman, A, Harrison, TJ, Salnikov, AA, Schindler, RH, Schwiening, J, Simi, G, Snyder, A, Soha, A, Stelzer, J, Su, D, Sullivan, MK, Va'vra, J, Hawkes, CM, Wagner, SR, Weaver, M, Weinstein, AJR, Wisniewski, WJ, Wright, DH, Young, CC, Burchat, PR, Edwards, AJ, Meyer, TI, Petersen, BA, Knowles, DJ, Roat, C, Ahmed, S, Alam, MS, Ernst, JA, Saleem, M, Wappler, FR, Bugg, W, Krishnamurthy, M, Spanier, SM, Eckmann, R, Morgan, SE, Kim, H, Ritchie, JL, Schwitters, RF, Izen, JM, Kitayama, I, Lou, XC, Ye, S, Bianchi, F, Bona, M, Gallo, F, Penny, RC, Gamba, D, Borean, C, Bosisio, L, Della Ricca, G, Dittongo, S, Grancagnolo, S, Lanceri, L, Poropat, P, Vitale, L, Vuagnin, G, Watson, AT, Panvini, RS, Banerjee, S, Brown, CM, Fortin, D, Jackson, PD, Kowalewski, R, Roney, JM, Band, HR, Dasu, S, Datta, M, Watson, NK, Eichenbaum, AM, Johnson, JR, Kutter, PE, Li, H, Liu, R, Lodovico, FD, Mihalyi, A, Mohapatra, AK, Pan, Y, Prepost, R, Goetzen, K, Sekula, SJ, von Wimmersperg-Toeller, JH, Wu, J, Wu, SL, Yu, Z, Neal, H, BABAR Collaboration, Held, T, Koch, H, Lewandowski, B, Pelizaeus, M, Peters, K, Schmuecker, H, Steinke, M, Barlow, NR, Boyd, JT, Chevalier, N, Cottingham, WN, Kelly, MP, Latham, TE, Mackay, C, Wilson, FF, Abe, K, Cuhadar-Donszelmann, T, Hearty, C, Mattison, TS, McKenna, JA, Thiessen, D, Kyberd, P, McKemey, AK, Blinov, VE, Bukin, AD, Golubev, VB, Ivanchenko, VN, Kravchenko, EA, Onuchin, AP, Serednyakov, SI, Skovpen, YI, Solodov, EP, Yushkov, AN, Best, D, Bruinsma, M, Chao, M, Kirkby, D, Lankford, AJ, Mandelkern, M, and Mommsen, RK
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K-ASTERISK-L%28%2B%29L%28-%29%22">B->K-ASTERISK-L(+)L(-) ,SUM-RULE ANALYSIS ,KL%28%2B%29L%28-%29%2C+B->K-ASTERISK-L%28%2B%29L%28-%29%22">SUM-RULE ANALYSIS, LIGHT-CONE QCD, STANDARD MODEL, B->KL(+)L(-), B->K-ASTERISK-L(+)L(-) ,KL%28%2B%29L%28-%29%22">B->KL(+)L(-) ,STANDARD MODEL ,LIGHT-CONE QCD ,NO - Abstract
We present evidence for the flavor-changing neutral current decay B-->K-*.(+).(-) and a measurement of the branching fraction for the related process B-->K.(+).(-), where .(+).(-) is either an e(+)e(-) or a mu(+)mu(-) pair. These decays are highly suppressed in the standard model, and they are sensitive to contributions from new particles in the intermediate state. The data sample comprises 123x10(6) Y(4S)-->B (B) over bar decays collected with the BABAR detector at the SLAC PEP-II e(+)e(-) storage ring. Averaging over K-(*) isospin and lepton flavor, we obtain the branching fractions B(B-->Kl(+)l(-))=(0.65(-0.13)(+0.14)+/-0.04)x10(-6) and B(B-->K(*)l(+)l(-))=(0.88(-0.29)(+0.33)+/-0.10)x10(-6), where the uncertainties are statistical and systematic, respectively. The significance of the B-->Kl(+)l(-) signal is over 8sigma, while for B-->K(*)l(+)l(-) it is 3.3sigma.
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- 2003