Time-integrated and time-dependent angular analyses of B -> J/psi K pi : A measurement of cos2 beta with no sign ambiguity from strong phases

Aubert, B.; Barate, R.; Boutigny, D.; Couderc, F.; Gaillard, J.M.; Karyotakis, Y.; Lees, J.P.; Poireau, V.; Tisserand, V.; Zghiche, A.; Palano, A.; Pompili, A.; Chen, J.C.; N. D., Q.; Rong, G.; Wang, P.; Zhu, Y.S.; Eigen, G.; Ofte, I.; Stugu, B.; Abrams, G.S.; Borgland, A.W.; Breon, A.B.; Brown, D.N.; Button Shafer, J.; Cahn, R.N.; Charles, E.; Day, C.T.; Gill, M.S.; Gritsan, A.V.; Groysman, Y.; Jacobsen, R.G.; Kadel, R.W.; Kadyk, J.; Kerth, L.T.; Kolomensky, Y.G.; Kukartsev, G.; Lynch, G.; Mir, L.M.; Oddone, P.J.; Orimoto, T.J.; Pripstein, M.; Roe, N.A.; Ronan, M.T.; Shelkov, V.G.; Wenzel, W.A.; Barrett, M.; Ford, K.E.; Harrison, T.J.; Hart, A.J.; Hawkes, C.M.; Morgan, S.E.; Watson, A.T.; Fritsch, M.; Goetzen, K.; Held, T.; Koch, H.; Lewandowski, B.; Pelizaeus, M.; Steinke, M.; Boyd, J.T.; Chevalier, N.; Cottingham, W.N.; Kelly, M.P.; Latham, T.E.; Wilson, F.F.; Cuhadar Donszelmann, T.; Hearty, C.; Knecht, N.S.; Mattison, T.S.; Mckenna, J.A.; Thiessen, D.; Khan, A.; Kyberd, P.; Teodorescu, L.; Blinov, A.E.; Blinov, V.E.; Druzhinin, V.P.; Golubev, V.B.; Ivanchenko, V.N.; Kravchenko, E.A.; Onuchin, A.P.; Serednyakov, S.I.; Skovpen, Y.I.; Solodov, E.P.; Yushkov, A.N.; Best, D.; Bruinsma, M.; Chao, M.; Eschrich, I.; Kirkby, D.; Lankford, A.J.; Mandelkern, M.; Mommsen, R.K.; Roethel, W.; Stoker, D.P.; Buchanan, C.; Hartfiel, B.L.; Foulkes, S.D.; Gary, J.W.; Shen, B.C.; Wang, K.; del Re, D.; Hadavand, H.K.; Hill, E.J.; Macfarlane, D.B.; Paar, H.P.; Rahatlou, S.; Sharma, V.; Cunha, J.A.; Berryhill, J.W.; Campagnari, C.; Dahmes, B.; Hong, T.M.; Long, O.; Lu, A.; Mazur, M.A.; Richman, J.D.; Verkerke, W.; Beck, T.W.; Eisner, A.M.; Heusch, C.A.; Kroseberg, J.; Lockman, W.S.; Nesom, G.; Schalk, T.; Schumm, B.A.; Seiden, A.; Spradlin, P.; Williams, D.C.; Wilson, M.G.; Albert, J.; Chen, E.; Dubois Felsmann, G.P.; Dvoretskii, A.; Hitlin, D.G.; Narsky, I.; Piatenko, T.; Porter, F.C.; Ryd, A.; Samuel, A.; Yang, S.; Jayatilleke, S.; Mancinelli, G.; Meadows, B.T.; Sokoloff, M.D.; Blanc, F.; Bloom, P.; Chen, S.; Ford, W.T.; Nauenberg, U.; Olivas, A.; Rankin, P.; Smith, J.G.; Zhang, J.; Zhang, L.; Chen, A.; Harton, J.L.; Soffer, A.; Toki, W.H.; Wilson, R.J.; Zeng, Q.; Altenburg, D.; Brandt, T.; Brose, J.; Dickopp, M.; Feltresi, E.; Hauke, A.; Lacker, H.M.; Muller Pfefferkorn, R.; Nogowski, R.; Otto, S.; Petzold, A.; Schubert, J.; Schubert, K.R.; Schwierz, R.; Spaan, B.; Sundermann, J.E.; Bernard, D.; Bonneaud, G.R.; Brochard, F.; Grenier, P.; Schrenk, S.; Thiebaux, C.; Vasileiadis, G.; Verderi, M.; Bard, D.J.; Clark, P.J.; Lavin, D.; Muheim, F.; Playfer, S.; Xie, Y.; Andreotti, M.; Azzolini, V.; Bettoni, D.; Bozzi, C.; Calabrese, R.; Cibinetto, G.; Luppi, E.; Negrini, M.; Piemontese, L.; Sarti, A.; Treadwell, E.; Anulli, F.; Baldini Ferroli, R.; Calcaterra, A.; de Sangro, R.; Finocchiaro, G.; Patteri, P.; Peruzzi, I.M.; Piccolo, M.; Zallo, A.; Buzzo, A.; Capra, R.; Contri, R.; Crosetti, G.; Lo Vetere, M.; Macri, M.; Monge, M.R.; Passaggio, S.; Patrignani, C.; Robutti, E.; Santroni, A.; Tosi, S.; Bailey, S.; Brandenburg, G.; Chaisanguanthum, K.S.; Morii, M.; Won, E.; Dubitzky, R.S.; Langenegger, U.; Marks, J.; Uwer, U.; Bhimji, W.; Bowerman, D.A.; Dauncey, P.D.; Egede, U.; Gaillard, J.R.; Morton, G.W.; Nash, J.A.; Nikolich, M.B.; Taylor, G.P.; Charles, M.J.; Grenier, G.J.; Mallik, U.; Cochran, J.; Crawley, H.B.; Lamsa, J.; Meyer, W.T.; Prell, S.; Rosenberg, E.I.; Rubin, A.E.; Yi, J.; Biasini, M.; Covarelli, R.; Pioppi, M.; Davier, M.; Giroux, X.; Grosdidier, G.; Hocker, A.; Laplace, S.; Le Diberder, F.; Lepeltier, V.; Lutz, A.M.; Petersen, T.C.; Plaszczynski, S.; Schune, M.H.; Tantot, L.; Wormser, G.; Cheng, C.H.; Lange, D.J.; Simani, M.C.; Wright, D.M.; Bevan, A.J.; Chavez, C.A.; Coleman, J.P.; Forster, I.J.; Fry, J.R.; Gabathuler, E.; Gamet, R.; Hutchcroft, D.E.; Parry, R.J.; Payne, D.J.; Sloane, R.J.; Touramanis, C.; Cormack, C.M.; Di Lodovico, F.; Brown, C.L.; Cowan, G.; Flack, R.L.; Flaecher, H.U.; Green, M.G.; Jackson, P.S.; Mcmahon, T.R.; Ricciardi, S.; Salvatore, F.; Winter, M.A.; Brown, D.; Davis, C.L.; Allison, J.; Barlow, N.R.; Barlow, R.J.; Hodgkinson, M.C.; Lafferty, G.D.; Lyon, A.J.; Williams, J.C.; Farbin, A.; Hulsbergen, W.D.; Jawahery, A.; Kovalskyi, D.; Lae, C.K.; Lillard, V.; Roberts, D.A.; Blaylock, G.; Dallapiccola, C.; Hertzbach, S.S.; Kofler, R.; Koptchev, V.B.; Moore, T.B.; Saremi, S.; Staengle, H.; Willocq, S.; Cowan, R.; Sciolla, G.; Sekula, S.J.; Taylor, F.; Yamamoto, R.K.; Mangeol, F.; Patel, P.M.; Robertson, S.H.; Lazzaro, A.; Lombardo, V.; Palombo, F.; Bauer, J.M.; Cremaldi, L.; Eschenburg, V.; Godang, R.; Kroeger, R.; Reidy, J.; Sanders, D.A.; Summers, D.J.; Zhao, H.W.; Brunet, S.; Cote, D.; Taras, P.; Nicholson, H.; Cavallo, N.; Fabozzi, F.; Gatto, C.; Lista, L.; Monorchio, D.; Paolucci, P.; Piccolo, D.; Sciacca, C.; Baak, M.; Bulten, H.; Raven, G.; Snoek, H.L.; Wilden, L.; Jessop, C.P.; Losecco, J.M.; Allmendinger, T.; Gan, K.K.; Honscheid, K.; Hufnagel, D.; Kagan, H.; Kass, R.; Pulliam, T.; Rahimi, A.M.; Ter Antonyan, R.; Wong, Q.K.; Brau, J.; Frey, R.; Igonkina, O.; Potter, C.T.; Sinev, N.B.; Strom, D.; Torrence, E.; Colecchia, F.; Dorigo, A.; Galeazzi, F.; Margoni, M.; Morandin, M.; Posocco, M.; Rotondo, M.; Simonetto, F.; Stroili, R.; Tiozzo, G.; Voci, C.; Benayoun, M.; Briand, H.; Chauveau, J.; David, P.; de la Vaissiere, C.; Del Buono, L.; Hamon, O.; John, F.; Leruste, P.; Malcles, J.; Ocariz, J.; Pivk, M.; Roos, L.; T'Jampens, S.; Therin, G.; Manfredi, P.F.; Re, V.; Behera, P.K.; Gladney, L.; Guo, Q.H.; Panetta, J.; Angelini, C.; Batignani, G.; Bettarini, S.; Bondioli, M.; Bucci, F.; Calderini, G.; Carpinelli, M.; Forti, F.; Giorgi, M.A.; Lusiani, A.; Marchiori, G.; Martinez Vidal, F.; Morganti, M.; Neri, N.; Paoloni, E.; Rama, M.; Rizzo, G.; Sandrelli, F.; Walsh, J.; Haire, M.; Judd, D.; Paick, K.; Wagoner, D.E.; Danielson, N.; Elmer, P.; Lau, Y.P.; Lu, C.; Miftakov, V.; Olsen, J.; Smith, F.; Telnov, A.V.; Bellini, F.; Faccini, R.; Ferrarotto, F.; Ferroni, F.; Gaspero, M.; Gioi, L.L.; Mazzoni, M.A.; Morganti, S.; Pierini, M.; Piredda, G.; Tehrani, F.S.; Voena, C.; Cavoto, G.; Christ, S.; Wagner, G.; Waldi, R.; Adye, T.; De Groot, N.; Franek, B.; Geddes, N.I.; Gopal, G.P.; Olaiya, E.O.; Aleksan, R.; Emery, S.; Gaidot, A.; Ganzhur, S.F.; Giraud, P.F.; de Monchenault, G.H.; Kozanecki, W.; Legendre, M.; London, G.W.; Mayer, B.; Schott, G.; Vasseur, G.; Yeche, C.; Zito, M.; Purohit, M.V.; Weidemann, A.W.; Wilson, J.R.; Yumiceva, F.X.; Abe, T.; Aston, D.; Bartoldus, R.; Berger, N.; Boyarski, A.M.; Buchmueller, O.L.; Claus, R.; Convery, M.R.; Cristinziani, M.; De Nardo, G.; Dong, D.; Dorfan, J.; Dujmic, D.; Dunwoodie, W.; Elsen, E.E.; Fan, S.; Field, R.C.; Glanzman, T.; Gowdy, S.J.; Hadig, T.; Halyo, V.; Hast, C.; Hryn'Ova, T.; Innes, W.R.; Kelsey, M.H.; Kim, P.; Kocian, M.L.; Leith, F.; Libby, J.; Luitz, S.; Luth, V.; Lynch, H.L.; Marsiske, H.; Messner, R.; Muller, D.R.; O'Grady, C.P.; Ozcan, V.E.; Perazzo, A.; Perl, M.; Petrak, S.; Ratcliff, B.N.; Roodman, A.; Salnikov, A.A.; Schindler, R.H.; Schwiening, J.; Simi, G.; Snyder, A.; Soha, A.; Stelzer, J.; Su, D.; Sullivan, M.K.; Va'Vra, J.; Wagner, S.R.; Weaver, M.; Weinstein, F.; Wisniewski, W.J.; Wittgen, M.; Wright, D.H.; Yarritu, A.K.; Young, C.C.; Burchat, P.R.; Edwards, A.J.; Meyer, T.I.; Petersen, B.A.; Roat, C.; Ahmed, M.; Ahmed, S.; Alam, M.S.; Ernst, J.A.; Saeed, M.A.; Saleem, M.; Wappler, F.R.; Bugg, W.; Krishnamurthy, M.; Spanier, S.M.; Eckmann, R.; Kim, H.; Ritchie, J.L.; Satpathy, A.; Schwitters, R.F.; Izen, J.M.; Kitayama, I.; Lou, X.C.; Ye, S.; Bianchi, F.; Bona, M.; Gallo, F.; Gamba, D.; Bosisio, L.; Cartaro, C.; Cossutti, F.; Della Ricca, G.; Dittongo, S.; Grancagnolo, S.; Lanceri, L.; Poropat, P.; Vitale, L.; Vuagnin, G.; Panvini, R.S.; Banerjee, S.; Brown, C.M.; Fortin, D.; Jackson, P.D.; Kowalewski, R.; Roney, J.M.; Sobie, R.J.; Back, J.J.; Harrison, P.F.; Mohanty, G.B.; Band, H.R.; Chen, X.; Cheng, B.; Dasu, S.; Datta, M.; Eichenbaum, A.M.; Flood, K.T.; Graham, M.; Hollar, J.J.; Johnson, J.R.; Kutter, P.E.; Li, H.; Liu, R.; Mihalyi, A.; Pan, Y.; Prepost, R.; Tan, P.; von Wimmersperg Toeller, J.H.; Wu, J.; S. L., W.; Yu, Z.; Greene, M.G.; Neal, H.

doi:10.1103/PhysRevD.71.032005

We present results on B-->J/psiKpi decays using e(+)e(-)annihilation data collected with the BABAR detector at the Y(4S) resonance. The detector is located at the PEP-II asymmetric-energy storage ring facility at the Stanford Linear Accelerator Center. Using approximately 88x10(6) B (B) over bar pairs, we measure the decay amplitudes for the flavor eigenmodes and observe strong-phase differences indicative of final-state interactions with a significance of 7.6 standard deviations. We use the interference between the Kpi S-wave and P-wave amplitudes in the region of the K-*(892) to resolve the ambiguity in the determination of these strong phases. We then perform an ambiguity-free measurement of cos2beta using the angular and time-dependent asymmetry in B-->J/psiK(*0)(K(S)(0)pi(0)) decays. With sin2beta fixed at its measured value and cos2beta treated as an independent parameter, we find cos2beta=2.72(-0.79)(+0.50)(stat)+/-0.27(syst), determining the sign of cos2beta to be positive at 86% C.L.

Time-integrated and time-dependent angular analyses of B -> J/psi K pi : A measurement of cos2 beta with no sign ambiguity from strong phases / B. Aubert, R. Barate, D. Boutigny, F. Couderc, J.M. Gaillard, Y. Karyotakis, J.P. Lees, V. Poireau, V. Tisserand, A. Zghiche, 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, V.G. Shelkov, 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, 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, S.D. Foulkes, J.W. Gary, 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.A. Cunha, J.W. Berryhill, C. Campagnari, B. Dahmes, T.M. Hong, O. Long, 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, J.G. Smith, J. Zhang, L. Zhang, A. Chen, J.L. Harton, A. Soffer, W.H. Toki, R.J. Wilson, Q. Zeng, D. Altenburg, T. Brandt, J. Brose, M. Dickopp, E. Feltresi, A. Hauke, H.M. Lacker, R. Muller Pfefferkorn, R. Nogowski, S. Otto, A. Petzold, J. Schubert, K.R. Schubert, R. Schwierz, B. Spaan, J.E. Sundermann, D. Bernard, G.R. Bonneaud, F. Brochard, P. Grenier, S. Schrenk, C. Thiebaux, G. Vasileiadis, M. Verderi, D.J. Bard, P.J. Clark, D. Lavin, 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, E. Treadwell, 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, M. Biasini, R. Covarelli, M. Pioppi, M. Davier, X. Giroux, G. Grosdidier, A. Hocker, S. Laplace, F. Le Diberder, V. Lepeltier, A.M. Lutz, T.C. Petersen, S. Plaszczynski, M.H. Schune, L. Tantot, 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, R.J. Sloane, 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, A.J. Lyon, J.C. Williams, 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, G. Sciolla, S.J. Sekula, F. Taylor, R.K. Yamamoto, F. Mangeol, 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, 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, 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, G. Tiozzo, C. Voci, M. Benayoun, H. Briand, J. Chauveau, P. David, C. de la Vaissiere, L. Del Buono, O. Hamon, F. John, P. Leruste, J. Malcles, J. Ocariz, M. Pivk, L. Roos, S. T'Jampens, G. Therin, P.F. Manfredi, V. Re, P.K. Behera, L. Gladney, Q.H. Guo, J. Panetta, C. Angelini, G. Batignani, S. Bettarini, M. Bondioli, F. Bucci, G. Calderini, M. Carpinelli, F. Forti, M.A. Giorgi, A. Lusiani, G. Marchiori, F. Martinez Vidal, M. Morganti, N. Neri, E. Paoloni, M. Rama, G. Rizzo, F. Sandrelli, J. Walsh, M. Haire, D. Judd, K. Paick, D.E. Wagoner, N. Danielson, P. Elmer, Y.P. Lau, C. Lu, V. Miftakov, J. Olsen, F. Smith, A.V. Telnov, F. Bellini, R. Faccini, F. Ferrarotto, F. Ferroni, M. Gaspero, L.L. Gioi, M.A. Mazzoni, S. Morganti, M. Pierini, G. Piredda, F.S. Tehrani, C. Voena, G. Cavoto, S. Christ, G. Wagner, R. Waldi, T. Adye, N. De Groot, B. Franek, N.I. Geddes, G.P. Gopal, E.O. Olaiya, R. Aleksan, S. Emery, A. Gaidot, S.F. Ganzhur, P.F. Giraud, G.H. de Monchenault, W. Kozanecki, M. Legendre, G.W. London, B. Mayer, G. Schott, G. Vasseur, C. Yeche, M. Zito, M.V. Purohit, A.W. Weidemann, J.R. Wilson, F.X. Yumiceva, T. Abe, D. Aston, R. Bartoldus, N. Berger, A.M. Boyarski, O.L. Buchmueller, R. Claus, M.R. Convery, M. Cristinziani, G. De Nardo, D. Dong, J. Dorfan, D. Dujmic, W. Dunwoodie, E.E. Elsen, 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, F. 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, S. Petrak, B.N. Ratcliff, A. Roodman, A.A. Salnikov, R.H. Schindler, J. Schwiening, G. Simi, A. Snyder, A. Soha, J. Stelzer, D. Su, M.K. Sullivan, J. Va'Vra, S.R. Wagner, M. Weaver, F. Weinstein, W.J. Wisniewski, M. Wittgen, D.H. Wright, A.K. Yarritu, C.C. Young, P.R. Burchat, A.J. Edwards, T.I. Meyer, 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, R.S. Panvini, S. Banerjee, C.M. Brown, D. Fortin, 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. - 71:3(2005), pp. 32005-1-32005-30. [10.1103/PhysRevD.71.032005]

Time-integrated and time-dependent angular analyses of B -> J/psi K pi : A measurement of cos2 beta with no sign ambiguity from strong phases

B. Aubert;R. Barate;D. Boutigny;F. Couderc;J. M. Gaillard;Y. Karyotakis;J. P. Lees;V. Poireau;V. Tisserand;A. Zghiche;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;V. G. Shelkov;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;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. 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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

2005

Abstract

We present results on B-->J/psiKpi decays using e(+)e(-)annihilation data collected with the BABAR detector at the Y(4S) resonance. The detector is located at the PEP-II asymmetric-energy storage ring facility at the Stanford Linear Accelerator Center. Using approximately 88x10(6) B (B) over bar pairs, we measure the decay amplitudes for the flavor eigenmodes and observe strong-phase differences indicative of final-state interactions with a significance of 7.6 standard deviations. We use the interference between the Kpi S-wave and P-wave amplitudes in the region of the K-*(892) to resolve the ambiguity in the determination of these strong phases. We then perform an ambiguity-free measurement of cos2beta using the angular and time-dependent asymmetry in B-->J/psiK(*0)(K(S)(0)pi(0)) decays. With sin2beta fixed at its measured value and cos2beta treated as an independent parameter, we find cos2beta=2.72(-0.79)(+0.50)(stat)+/-0.27(syst), determining the sign of cos2beta to be positive at 86% C.L.

Scheda breve

Scheda completa

Scheda completa (DC)

	Parole chiave
	
			B mesons; CP invariance; electron-positron inclusive interactions; electroweak theories; flavour model; kaon production; meson hadronic decay; pion production
		
	Settori scientifico-disciplinari dell'articolo
	
			Settore FIS/01 - Fisica Sperimentale
		
	Data di pubblicazione
	
			2005
		
	Rivista in ANCE
	
			PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY
		
	DOI
	
			https://dx.doi.org/10.1103/PhysRevD.71.032005
		
	Tipologia
	
			Article (author)
		
	Appare nelle tipologie:
	
			01 - Articolo su periodico

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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2434/16166

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