Using 226x10(6) Upsilon(4S)-> B anti-B events collected with the BABAR detector at the PEP-II e+ e- storage ring at the Stanford Linear Accelerator Center, we measure the branching fraction for B0 -> anti-D0 K+ pi-, excluding B0-> D*- K+, to be B(B0 -> anti-D0 K+ pi-)=(88 +/- 15 +/- 9)x10^(-6). We observe B0 -> anti-D0 K*0(892) and B0-> D2*-(2460) K+ contributions. The ratio of branching fractions B(B0-> D*- K+)/B(B0-> D*- pi+)=(7.76 +/- 0.34 +/- 0.29)% is measured separately. The branching fraction for the suppressed mode B0-> D0 K+ pi- is B(B0-> D0 K+ pi-)< 19x10^(-6) at the 90% confidence level.

Measurement of branching fractions and resonance contributions for B0 -> anti-D0 K+ pi- and search for B0 -> D0 K+ pi- decays / 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. 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Measurement of branching fractions and resonance contributions for B0 -> anti-D0 K+ pi- and search for B0 -> D0 K+ pi- decays

A. LAZZARO;V. LOMBARDO;F. PALOMBO;N. NERI;
2006

Abstract

Using 226x10(6) Upsilon(4S)-> B anti-B events collected with the BABAR detector at the PEP-II e+ e- storage ring at the Stanford Linear Accelerator Center, we measure the branching fraction for B0 -> anti-D0 K+ pi-, excluding B0-> D*- K+, to be B(B0 -> anti-D0 K+ pi-)=(88 +/- 15 +/- 9)x10^(-6). We observe B0 -> anti-D0 K*0(892) and B0-> D2*-(2460) K+ contributions. The ratio of branching fractions B(B0-> D*- K+)/B(B0-> D*- pi+)=(7.76 +/- 0.34 +/- 0.29)% is measured separately. The branching fraction for the suppressed mode B0-> D0 K+ pi- is B(B0-> D0 K+ pi-)< 19x10^(-6) at the 90% confidence level.
B mesons ; meson hadronic decay
Settore FIS/01 - Fisica Sperimentale
2006
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2434/22566
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