Publication Date:
2006
Citation:
Observation of B+ -> K0bar K+ and B0 -> K0 K0bar / B. AUBERT, M. BONA, D. BOUTIGNY, F. COUDERC, Y. KARYOTAKIS, J.P. LEES, V. POIREAU, V. TISSERAND, A. ZGHICHE, E. GRAUGES, A. PALANO, 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.N. BROWN, J. BUTTON-SHAFER, R.N. CAHN, E. CHARLES, M.S. GILL, Y. GROYSMAN, R.G. JACOBSEN, J.A. KADYK, L.T. KERTH, Y.G. KOLOMENSKY, G. KUKARTSEV, G. LYNCH, L.M. MIR, T.J. ORIMOTO, M. PRIPSTEIN, N.A. ROE, M.T. RONAN, W.A. WENZEL, P.D. SANCHEZ, M. BARRETT, K.E. FORD, T.J. HARRISON, A.J. HART, C.M. HAWKES, A.T. WATSON, T. HELD, H. KOCH, B. LEWANDOWSKI, M. PELIZAEUS, K. PETERS, T. SCHROEDER, M. STEINKE, J.T. BOYD, J.P. BURKE, W.N. COTTINGHAM, D. WALKER, D.J. ASGEIRSSON, T. CUHADAR-DONSZELMANN, B.G. FULSOM, C. HEARTY, N.S. KNECHT, T.S. MATTISON, J.A. MCKENNA, A. KHAN, P. KYBERD, M. SALEEM, D.J. SHERWOOD, L. TEODORESCU, V.E. BLINOV, A.D. BUKIN, V.P. DRUZHININ, V.B. GOLUBEV, A.P. ONUCHIN, S.I. SEREDNYAKOV, Y.I. SKOVPEN, E.P. SOLODOV, K.Y. TODYSHEV, 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, S. ABACHI, C. BUCHANAN, S.D. FOULKES, J.W. GARY, O. LONG, B.C. SHEN, K. WANG, L. ZHANG, H.K. HADAVAND, E.J. HILL, H.P. PAAR, S. RAHATLOU, V. SHARMA, J.W. BERRYHILL, C. CAMPAGNARI, A. CUNHA, B. DAHMES, T.M. HONG, D. KOVALSKYI, J.D. RICHMAN, 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, A. DVORETSKII, F. FANG, D.G. HITLIN, I. NARSKY, T. PIATENKO, F.C. PORTER, A. RYD, G. MANCINELLI, B.T. MEADOWS, K. MISHRA, M.D. SOKOLOFF, F. BLANC, P.C. BLOOM, S. CHEN, W.T. FORD, J.F. HIRSCHAUER, A. KREISEL, M. NAGEL, 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, F. WINKLMEIER, Q. ZENG, D.D. ALTENBURG, E. FELTRESI, A. HAUKE, H. JASPER, J. MERKEL, A. PETZOLD, B. SPAAN, T. BRANDT, V. KLOSE, H.M. LACKER, W.F. MADER, R. NOGOWSKI, J. SCHUBERT, K.R. SCHUBERT, R. SCHWIERZ, J.E. SUNDERMANN, A. VOLK, D. BERNARD, G.R. BONNEAUD, E. LATOUR, C. THIEBAUX, M. VERDERI, P.J. CLARK, W. GRADL, F. MUHEIM, S. PLAYFER, A.I. ROBERTSON, Y. XIE, M. ANDREOTTI, D. BETTONI, C. BOZZI, R. CALABRESE, G. CIBINETTO, E. LUPPI, M. NEGRINI, A. PETRELLA, L. PIEMONTESE, E. PRENCIPE, F. ANULLI, R. BALDINI-FERROLI, A. CALCATERRA, R. DE SANGRO, G. FINOCCHIARO, S. PACETTI, P. PATTERI, I.M. PERUZZI, M. PICCOLO, M. RAMA, A. ZALLO, A. BUZZO, R. CONTRI, M. LO VETERE, M.M. MACRI, M.R. MONGE, S. PASSAGGIO, C. PATRIGNANI, E. ROBUTTI, A. SANTRONI, S. TOSI, G. BRANDENBURG, K.S. CHAISANGUANTHUM, M. MORII, J. WU, R.S. DUBITZKY, J. MARKS, S. SCHENK, U. UWER, D.J. BARD, W. BHIMJI, D.A. BOWERMAN, P.D. DAUNCEY, U. EGEDE, R.L. FLACK, J.A. NASH, M.B. NIKOLICH, W.P. VAZQUEZ, P.K. BEHERA, X. CHAI, M.J. CHARLES, U. MALLIK, N.T. MEYER, V. ZIEGLER, J. COCHRAN, H.B. CRAWLEY, L. DONG, V. EYGES, W.T. MEYER, S. PRELL, E.I. ROSENBERG, A.E. RUBIN, A.V. GRITSAN, A.G. DENIG, M. FRITSCH, G. SCHOTT, N. ARNAUD, M. DAVIER, G. GROSDIDIER, A. HOCKER, F. LE DIBERDER, V. LEPELTIER, A.M. LUTZ, A. OYANGUREN, S. PRUVOT, S. RODIER, P. ROUDEAU, M.H. SCHUNE, A. STOCCHI, W.F. WANG, G. WORMSER, C.H. CHENG, D.J. LANGE, D.M. WRIGHT, C.A. CHAVEZ, I.J. FORSTER, J.R. FRY, E. GABATHULER, R. GAMET, K.A. GEORGE, D.E. HUTCHCROFT, D.J. PAYNE, K.C. SCHOFIELD, C. TOURAMANIS, A.J. BEVAN, F. DI LODOVICO, W. MENGES, R. SACCO, G. COWAN, H.U. FLAECHER, D.A. HOPKINS, P.S. JACKSON, T.R. MCMAHON, S. RICCIARDI, F. SALVATORE, A.C. WREN, D.N. BROWN, C.L. DAVIS, J. ALLISON, N.R. BARLOW, R.J. BARLOW, Y.M. CHIA, C.L. EDGAR, G.D. LAFFERTY, M.T. NAISBIT, J.C. WILLIAMS, J.I. YI, C. CHEN, W.D. HULSBERGEN, A. JAWAHERY, C.K. LAE, D.A. ROBERTS, G. SIMI, G. BLAYLOCK, C. DALLAPICCOLA, S.S. HERTZBACH, X. LI, T.B. MOORE, S. SAREMI, H. STAENGLE, R. COWAN, G. SCIOLLA, S.J. SE
abstract:
We report observations of the b -> d penguin-dominated decays B+-> Kbar K0(+) and B0 -> K0(K0bar) in 316 fb(-1) of e(+)e(-) collision data collected with the BABAR detector. We measure the branching fractions B(B+->Kbar K0(+))=(1.61 +/- 0.44 +/- 0.09)x10^(-6) and B(B0 -> K0(K0bar)=(1.08 +/- 0.28 +/- 0.11)x10^(-6) and the CP-violating charge asymmetry A_CP(K0bar K-0(+))=0.10 +/- 0.26 +/- 0.03. Using a vertexing technique previously employed in several analyses of all-neutral final states containing kaons, we report the first measurement of time-dependent CP-violating asymmetries in B0 ->(KS KS0)-K0, obtaining S=-1.28(-0.73-0.16)(+0.80+0.11) and C=-0.40 +/- 0.41 +/- 0.06. We also report improved measurements of the branching fraction B(B+-> K0 pi+)=(23.9 +/- 1.1 +/- 1.0)x10^(-6) and CP-violating charge asymmetry A_CP(K0 pi+)=-0.029 +/- 0.039 +/- 0.010.
IRIS type:
01 - Articolo su periodico
Keywords:
B mesons; CP invariance; electron-positron inclusive interactions; meson hadronic decay
List of contributors:
B. Aubert, M. Bona, D. Boutigny, F. Couderc, Y. Karyotakis, J.P. Lees, V. Poireau, V. Tisserand, A. Zghiche, E. Grauges, A. Palano, 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.N. Brown, J. BUTTON SHAFER, R.N. Cahn, E. Charles, M.S. Gill, Y. Groysman, R.G. Jacobsen, J.A. Kadyk, L.T. Kerth, Y.G. Kolomensky, G. Kukartsev, G. Lynch, L.M. Mir, T.J. Orimoto, M. Pripstein, N.A. Roe, M.T. Ronan, W.A. Wenzel, P.D. Sanchez, M. Barrett, K.E. Ford, T.J. Harrison, A.J. Hart, C.M. Hawkes, A.T. Watson, T. Held, H. Koch, B. Lewandowski, M. Pelizaeus, K. Peters, T. Schroeder, M. Steinke, J.T. Boyd, J.P. Burke, W.N. Cottingham, D. Walker, D.J. Asgeirsson, T. CUHADAR DONSZELMANN, B.G. Fulsom, C. Hearty, N.S. Knecht, T.S. Mattison, J.A. Mckenna, A. Khan, P. Kyberd, M. Saleem, D.J. Sherwood, L. Teodorescu, V.E. Blinov, A.D. Bukin, V.P. Druzhinin, V.B. Golubev, A.P. Onuchin, S.I. Serednyakov, Y.I. Skovpen, E.P. Solodov, K.Y. Todyshev, 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, S. Abachi, C. Buchanan, S.D. Foulkes, J.W. Gary, O. Long, B.C. Shen, K. Wang, L. Zhang, H.K. Hadavand, E.J. Hill, H.P. Paar, S. Rahatlou, V. Sharma, J.W. Berryhill, C. Campagnari, A. Cunha, B. Dahmes, T.M. Hong, D. Kovalskyi, J.D. Richman, 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, A. Dvoretskii, F. Fang, D.G. Hitlin, I. Narsky, T. Piatenko, F.C. Porter, A. Ryd, G. Mancinelli, B.T. Meadows, K. Mishra, M.D. Sokoloff, F. Blanc, P.C. Bloom, S. Chen, W.T. Ford, J.F. Hirschauer, A. Kreisel, M. Nagel, 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, F. Winklmeier, Q. Zeng, D.D. Altenburg, E. Feltresi, A. Hauke, H. Jasper, J. Merkel, A. Petzold, B. Spaan, T. Brandt, V. Klose, H.M. Lacker, W.F. Mader, R. Nogowski, J. Schubert, K.R. Schubert, R. Schwierz, J.E. Sundermann, A. Volk, D. Bernard, G.R. Bonneaud, E. Latour, C. Thiebaux, M. Verderi, P.J. Clark, W. Gradl, F. Muheim, S. Playfer, A.I. Robertson, Y. Xie, M. Andreotti, D. Bettoni, C. Bozzi, R. Calabrese, G. Cibinetto, E. Luppi, M. Negrini, A. Petrella, L. Piemontese, E. Prencipe, F. Anulli, R. BALDINI FERROLI, A. Calcaterra, R. DE SANGRO, G. Finocchiaro, S. Pacetti, P. Patteri, I.M. Peruzzi, M. Piccolo, M. Rama, A. Zallo, A. Buzzo, R. Contri, M. LO VETERE, M.M. Macri, M.R. Monge, S. Passaggio, C. Patrignani, E. Robutti, A. Santroni, S. Tosi, G. Brandenburg, K.S. Chaisanguanthum, M. Morii, J. Wu, R.S. Dubitzky, J. Marks, S. Schenk, U. Uwer, D.J. Bard, W. Bhimji, D.A. Bowerman, P.D. Dauncey, U. Egede, R.L. Flack, J.A. Nash, M.B. Nikolich, W.P. Vazquez, P.K. Behera, X. Chai, M.J. Charles, U. Mallik, N.T. Meyer, V. Ziegler, J. Cochran, H.B. Crawley, L. Dong, V. Eyges, W.T. Meyer, S. Prell, E.I. Rosenberg, A.E. Rubin, A.V. Gritsan, A.G. Denig, M. Fritsch, G. Schott, N. Arnaud, M. Davier, G. Grosdidier, A. Hocker, F. LE DIBERDER, V. Lepeltier, A.M. Lutz, A. Oyanguren, S. Pruvot, S. Rodier, P. Roudeau, M.H. Schune, A. Stocchi, W.F. Wang, G. Wormser, C.H. Cheng, D.J. Lange, D.M. Wright, C.A. Chavez, I.J. Forster, J.R. Fry, E. Gabathuler, R. Gamet, K.A. George, D.E. Hutchcroft, D.J. Payne, K.C. Schofield, C. Touramanis, A.J. Bevan, F. DI LODOVICO, W. Menges, R. Sacco, G. Cowan, H.U. Flaecher, D.A. Hopkins, P.S. Jackson, T.R. Mcmahon, S. Ricciardi, F. Salvatore, A.C. Wren, D.N. Brown, C.L. Davis, J. Allison, N.R. Barlow, R.J. Barlow, Y.M. Chia, C.L. Edgar, G.D. Lafferty, M.T. Naisbit, J.C. Williams, J.I. Yi, C. Chen, W.D. Hulsbergen, A. Jawahery, C.K. Lae, D.A. Roberts, G. Simi, G. Blaylock, C. Dallapiccola, S.S. Hertzbach, X. Li, T.B. Moore, S. Saremi, H. Staengle, R. Cowan, G. Sciolla, S.J. Sekula, M. Spitznagel, F. Taylor, R.K. Yamamoto, H. K
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