We measure the absolute branching fraction for D0 --> K- pi+ using partial reconstruction of B0bar --> D^{*+} X \ell^{-} \bar{\nu}_{\ell} decays, in which only the charged lepton and the pion from the decay D^{*+} --> D0 pi^+ are used. Based on a data sample of 230 million B Bbar pairs collected at the Upsilon(4S) resonance with the BABAR detector at the PEP-II asymmetric-energy B Factory at SLAC, we obtain the absolute branching fractions of D0 --> K- pi+ = (4.007 \pm 0.037 \pm 0.072)%, where the first uncertainty is statistical and the second is systematic.

Measurement of the Absolute Branching Fraction of D0 --> K- pi+ / 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. 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Measurement of the Absolute Branching Fraction of D0 --> K- pi+

A. Lazzaro;V. Lombardo;F. Palombo;N. Neri;
2008

Abstract

We measure the absolute branching fraction for D0 --> K- pi+ using partial reconstruction of B0bar --> D^{*+} X \ell^{-} \bar{\nu}_{\ell} decays, in which only the charged lepton and the pion from the decay D^{*+} --> D0 pi^+ are used. Based on a data sample of 230 million B Bbar pairs collected at the Upsilon(4S) resonance with the BABAR detector at the PEP-II asymmetric-energy B Factory at SLAC, we obtain the absolute branching fractions of D0 --> K- pi+ = (4.007 \pm 0.037 \pm 0.072)%, where the first uncertainty is statistical and the second is systematic.
D decays
Settore FIS/01 - Fisica Sperimentale
2008
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2434/39500
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