We measure the time-dependent CP asymmetry parameters in B-0 -> K+ K- K-0 based on a data sample of approximately 227 x 10(6) B-meson pairs recorded at the Upsilon(4S) resonance with the BABAR detector at the PEP-II B-meson Factory at SLAC. We reconstruct two-body B-0 decays to phi(1020)K-S(0) and phi(1020)K-L(0), and the three-body decay K+ K- K-S(0) with phi(1020)K-S(0) excluded. For the B-0 -> phi K-0 decays, we measure sin2 beta(eff)(phi K-0) = +0.50 +/- 0.25(stat)(-0.04)(+0.07)(syst). The B-0 -> K+ K- K-S(0) decays are dominated by K+ K- S wave, as determined from an angular analysis; we measure sin2 beta(eff)((K+K-KS0)) = +0.55 +/- 0.22(stat) +/- 0.04(syst) +/- 0.11(CP), where the last error is due to the uncertainty in the fraction of CP-even contributions to the decay amplitude. We find no evidence for direct CP violation.
Measurement of CP asymmetries in B-0 ->phi K-0 and B-0 -> K+ K- K-s(0) decays / B. Aubert, R. Barate, D. Boutigny, F. Couderc, Y. Karyotakis, J.P. Lees, V. Poireau, V. Tisserand, A. Zghiche, E. Grauges-Pous, A. Palano, A. Pompili, J.C. Chen, N.D. Qi, G. Rong, P. Wang, Y.S. Zhu, G. Eigen, I. Ofte, B. Stugu, G.S. Abrams, A.W. Borgland, 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, M.P. Kelly, T.E. Latham, F.F. Wilson, T. Cuhadar-Donszelmann, C. Hearty, N.S. Knecht, T.S. Mattison, J.A. McKenna, D. Thiessen, A. Khan, P. Kyberd, L. Teodorescu, A.E. Blinov, V.E. Blinov, V.P. Druzhinin, V.B. Golubev, V.N. Ivanchenko, E.A. Kravchenko, A.P. Onuchin, S.I. Serednyakov, Y.I. Skovpen, E.P. Solodov, A.N. Yushkov, D. Best, M. Bruinsma, M. Chao, I. Eschrich, D. Kirkby, A.J. Lankford, M. Mandelkern, R.K. Mommsen, W. Roethel, D.P. Stoker, C. Buchanan, B.L. Hartfiel, Falso Weinstein, S.D. Foulkes, J.W. Gary, O. Long, B.C. Shen, K. Wang, 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, A. Lu, 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, I. Narsky, T. Piatenko, F.C. Porter, A. Ryd, A. Samuel, S. Yang, S. Jayatilleke, G. Mancinelli, B.T. Meadows, M.D. Sokoloff, F. Blanc, P. Bloom, S. Chen, W.T. Ford, U. Nauenberg, A. Olivas, P. Rankin, W.O. Ruddick, J.G. Smith, K.A. Ulmer, J. Zhang, L. Zhang, A. Chen, E.A. Eckhart, J.L. Harton, A. Soffer, W.H. Toki, R.J. Wilson, Q. Zeng, B. Spaan, D. Altenburg, T. Brandt, J. Brose, M. Dickopp, E. Feltresi, A. Hauke, H.M. Lacker, E. Maly, R. Nogowski, S. Otto, A. Petzold, G. Schott, 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, F. Muheim, S. Playfer, Y. Xie, M. Andreotti, V. Azzolini, D. Bettoni, C. Bozzi, R. Calabrese, G. Cibinetto, E. Luppi, M. Negrini, L. Piemontese, A. Sarti, 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, G. Crosetti, M. Lo Vetere, M. Macri, M.R. Monge, S. Passaggio, C. Patrignani, E. Robutti, A. Santroni, S. Tosi, S. Bailey, G. Brandenburg, K.S. Chaisanguanthum, M. Morii, E. Won, R.S. Dubitzky, U. Langenegger, J. Marks, U. Uwer, W. Bhimji, D.A. Bowerman, P.D. Dauncey, U. Egede, J.R. Gaillard, G.W. Morton, J.A. Nash, M.B. Nikolich, G.P. Taylor, M.J. Charles, G.J. Grenier, U. Mallik, A.K. Mohapatra, J. Cochran, H.B. Crawley, J. Lamsa, W.T. Meyer, S. Prell, E.I. Rosenberg, A.E. Rubin, J. Yi, N. Arnaud, M. Davier, X. Giroux, G. Grosdidier, A. Hocker, F.L. Diberder, V. Lepeltier, A.M. Lutz, T.C. Petersen, M. Pierini, S. Plaszczynski, M.H. Schune, G. Wormser, C.H. Cheng, D.J. Lange, M.C. Simani, D.M. Wright, A.J. Bevan, C.A. Chavez, J.P. Coleman, I.J. Forster, J.R. Fry, E. Gabathuler, R. Gamet, D.E. Hutchcroft, R.J. Parry, D.J. Payne, C. Touramanis, C.M. Cormack, F.D. Lodovico, C.L. Brown, G. Cowan, R.L. Flack, H.U. Flaecher, M.G. Green, P.S. Jackson, T.R. McMahon, S. Ricciardi, F. Salvatore, M.A. Winter, D. Brown, C.L. Davis, J. Allison, N.R. Barlow, R.J. Barlow, M.C. Hodgkinson, G.D. Lafferty, M.T. Naisbit, J.C. Williams, C. Chen, A. Farbin, W.D. Hulsbergen, A. Jawahery, D. Kovalskyi, C.K. Lae, V. Lillard, D.A. Roberts, G. Blaylock, C. Dallapiccola, S.S. Hertzbach, R. Kofler, V.B. Koptchev, T.B. Moore, S. Saremi, H. Staengle, S. Willocq, R. Cowan, K. Koeneke, G. Sciolla, S.J. Sekula, F. Taylor, R.K. Yamamoto, 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, H. Nicholson, N. Cavallo, 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, H. Kagan, R. Kass, T. Pulliam, A.M. Rahimi, R. Ter-Antonyan, Q.K. Wong, J. Brau, R. Frey, O. Igonkina, M. Lu, C.T. Potter, N.B. Sinev, D. Strom, E. Torrence, F. Colecchia, A. Dorigo, 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. Del Buono, C. de la Vaissiere, O. Hamon, Falso 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, M. Pioppi, C. Angelini, G. Batignani, S. Bettarini, M. Bondioli, F. Bucci, G. Calderini, M. Carpinelli, F. Forti, M.A. Giorgi, A. Lusiani, G. Marchiori, M. Morganti, N. Neri, E. Paoloni, M. Rama, G. Rizzo, G. Simi, J. Walsh, M. Haire, D. Judd, K. Paick, D.E. Wagoner, N. Danielson, P. Elmer, Y.P. Lau, C. Lu, V. Miftakov, J. Olsen, Falso Smith, A.V. Telnov, F. Bellini, G. Cavoto, A. D'Orazio, E.D. Marco, R. Faccini, F. Ferrarotto, F. Ferroni, M. Gaspero, L.L. Gioi, M.A. Mazzoni, S. Morganti, G. Piredda, F. Polci, F.S. Tehrani, C. Voena, S. Christ, H. Schroder, G. Wagner, R. Waldi, T. Adye, N.D. Groot, B. Franek, G.P. Gopal, E.O. Olaiya, R. Aleksan, S. Emery, A. Gaidot, S.F. Ganzhur, P.F. Giraud, 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, M.R. Convery, M. Cristinziani, G.D. Nardo, 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, Falso 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, A. Soha, J. Stelzer, J. Strube, D. Su, M.K. Sullivan, J.M. Thompson, J. Va'vra, S.R. Wagner, M. Weaver, W.J. Wisniewski, M. Wittgen, D.H. Wright, A.K. Yarritu, C.C. Young, P.R. Burchat, A.J. Edwards, S.A. Majewski, B.A. Petersen, C. Roat, M. Ahmed, S. Ahmed, M.S. Alam, J.A. Ernst, M.A. Saeed, M. Saleem, F.R. Wappler, W. Bugg, M. Krishnamurthy, S.M. Spanier, R. Eckmann, H. Kim, 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, L. Bosisio, C. Cartaro, F. Cossutti, G. Della Ricca, S. Dittongo, S. Grancagnolo, L. Lanceri, P. Poropat, L. Vitale, G. Vuagnin, F. Martinez-Vidal, R.S. Panvini, S. Banerjee, B. Bhuyan, C.M. Brown, D. Fortin, K. Hamano, P.D. Jackson, R. Kowalewski, J.M. Roney, R.J. Sobie, J.J. Back, P.F. Harrison, G.B. Mohanty, H.R. Band, X. Chen, B. Cheng, S. Dasu, M. Datta, A.M. Eichenbaum, K.T. Flood, M. Graham, J.J. Hollar, J.R. Johnson, P.E. Kutter, H. Li, R. Liu, A. Mihalyi, Y. Pan, R. Prepost, P. Tan, J.H. von Wimmersperg-Toeller, J. Wu, S.L. Wu, Z. Yu, M.G. Greene, H. Neal. - In: PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY. - ISSN 1550-7998. - 71:9(2005), pp. 091102.1-091102.8.
Measurement of CP asymmetries in B-0 ->phi K-0 and B-0 -> K+ K- K-s(0) decays
A. Lazzaro;V. Lombardo;F. Palombo;N. Neri;
2005
Abstract
We measure the time-dependent CP asymmetry parameters in B-0 -> K+ K- K-0 based on a data sample of approximately 227 x 10(6) B-meson pairs recorded at the Upsilon(4S) resonance with the BABAR detector at the PEP-II B-meson Factory at SLAC. We reconstruct two-body B-0 decays to phi(1020)K-S(0) and phi(1020)K-L(0), and the three-body decay K+ K- K-S(0) with phi(1020)K-S(0) excluded. For the B-0 -> phi K-0 decays, we measure sin2 beta(eff)(phi K-0) = +0.50 +/- 0.25(stat)(-0.04)(+0.07)(syst). The B-0 -> K+ K- K-S(0) decays are dominated by K+ K- S wave, as determined from an angular analysis; we measure sin2 beta(eff)((K+K-KS0)) = +0.55 +/- 0.22(stat) +/- 0.04(syst) +/- 0.11(CP), where the last error is due to the uncertainty in the fraction of CP-even contributions to the decay amplitude. We find no evidence for direct CP violation.Pubblicazioni consigliate
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.