Measurement of the CP-Violating Asymmetries in B0 -> KS pi0 and of the Branching Fraction of B0 -> K0 pi0
Articolo
Data di Pubblicazione:
2008
Citazione:
Measurement of the CP-Violating Asymmetries in B0 -> KS pi0 and of the Branching Fraction of B0 -> K0 pi0 / 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. Edg
Abstract:
We present a measurement of the time-dependent CP-violating asymmetries in $B^0 \to K^0_{\scriptscriptstyle S}\pi^0$ decays based on 383 million $\Upsilon(4S)\to B\kern 0.18em\bar{\kern -0.18em B}$ events collected by the \mbox{\slshape B\kern-0.1em{\smaller A}\kern-0.1em B\kern-0.1em{\smaller A\kern-0.2em R}} experiment at the PEP-II asymmetric-energy $B$ Factory at SLAC. We measure the direct CP-violating asymmetry $C_{K^0_{\scriptscriptstyle S}\pi^0} = 0.24 \pm 0.15 \pm 0.03$ and the CP-violating asymmetry in the interference between mixing and decay $S_{K^0_{\scriptscriptstyle S}\pi^0} = 0.40 \pm 0.23 \pm 0.03$, where the first errors are statistical and the second are systematic. On the same sample, we measure the decay branching fraction, obtaining ${\cal B}(B^0 \to K^0\pi^0)= (10.3 \pm 0.7 \pm 0.6)\times 10^{-6}$.
Tipologia IRIS:
01 - Articolo su periodico
Keywords:
CP violation ; B meson
Elenco autori:
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. Ja
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