Branching fractions and CP asymmetries in B-0 ->pi(0)pi(0), B+->pi(+)pi(0), and B+-> K+pi(0) decays and isospin analysis of the B ->pi pi system
Articolo
Data di Pubblicazione:
2005
Citazione:
Branching fractions and CP asymmetries in B-0 ->pi(0)pi(0), B+->pi(+)pi(0), and B+-> K+pi(0) decays and isospin analysis of the B ->pi pi system / 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, T. Schroeder, M. Steinke, J.T. Boyd, 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.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, 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, 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, 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. Le Diberder, V. Lepeltier, A.M. Lutz, T.C. Petersen, 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. Di 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, J.C. Williams, C. Chen, A. Farbin, W.D. Hulsbergen, A. Jawahery, D. Kovalskyi, C.
Abstract:
Based on a sample of 227x10(6) B(B) over bar pairs collected by the BABAR detector at the PEP-II asymmetric-energy B Factory at SLAC, we measure the branching fraction B(B-0→π(0)π(0))=(1.17± 0.32± 0.10)x10(-6), and the asymmetry C-π(0)π(0)=-0.12± 0.56± 0.06. The B-0→π(0)π(0) signal has a significance of 5.0σ. We also measure B(B+→π(+)π(0))=(5.8± 0.6± 0.4)x10(-6), B(B+→ K+π(0))=(12.0± 0.7± 0.6)x10(-6), and the charge asymmetries A(π)(+)π(0)=-0.01± 0.10± 0.02 and A(K)(+)π(0)=0.06± 0.06± 0.01. Using isospin relations, we find an upper bound on the angle difference |α-α(eff)| of 35° at the 90% C.L.
Tipologia IRIS:
01 - Articolo su periodico
Keywords:
B mesons; CP invariance; electroweak theories; meson hadronic decay; standard model
Elenco autori:
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, T. Schroeder, M. Steinke, J.T. Boyd, 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, F. 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.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, 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, 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, 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. Le Diberder, V. Lepeltier, A.M. Lutz, T.C. Petersen, 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. Di 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, 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. Willo
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