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Measurement of the absolute branching fraction of D0→K-π+

  • Author(s): Aubert, B
  • Bona, M
  • Boutigny, D
  • Karyotakis, Y
  • Lees, JP
  • Poireau, V
  • Prudent, X
  • Tisserand, V
  • Zghiche, A
  • Garra Tico, J
  • Grauges, E
  • Lopez, L
  • Palano, A
  • Eigen, G
  • Ofte, I
  • Stugu, B
  • Sun, L
  • Abrams, GS
  • Battaglia, M
  • Brown, DN
  • Button-Shafer, J
  • Cahn, RN
  • Groysman, Y
  • Jacobsen, RG
  • Kadyk, JA
  • Kerth, LT
  • Kolomensky, YG
  • Kukartsev, G
  • Lopes Pegna, D
  • Lynch, G
  • Mir, LM
  • Orimoto, TJ
  • Pripstein, M
  • Roe, NA
  • Ronan, MT
  • Tackmann, K
  • Wenzel, WA
  • Del Amo Sanchez, P
  • Hawkes, CM
  • Watson, AT
  • Held, T
  • Koch, H
  • Lewandowski, B
  • Pelizaeus, M
  • Schroeder, T
  • Steinke, M
  • Cottingham, WN
  • Walker, D
  • Asgeirsson, DJ
  • Cuhadar-Donszelmann, T
  • Fulsom, BG
  • Hearty, C
  • Knecht, NS
  • Mattison, TS
  • McKenna, JA
  • Khan, A
  • Saleem, M
  • Teodorescu, L
  • Blinov, VE
  • Bukin, AD
  • Druzhinin, VP
  • Golubev, VB
  • Onuchin, AP
  • Serednyakov, SI
  • Skovpen, YI
  • Solodov, EP
  • Todyshev, KY
  • Bondioli, M
  • Curry, S
  • Eschrich, I
  • Kirkby, D
  • Lankford, AJ
  • Lund, P
  • Mandelkern, M
  • Martin, EC
  • Stoker, DP
  • Abachi, S
  • Buchanan, C
  • Foulkes, SD
  • Gary, JW
  • Liu, F
  • Long, O
  • Shen, BC
  • Zhang, L
  • Paar, HP
  • Rahatlou, S
  • Sharma, V
  • Berryhill, JW
  • Campagnari, C
  • Cunha, A
  • Dahmes, B
  • Hong, TM
  • Kovalskyi, D
  • Richman, JD
  • Beck, TW
  • Eisner, AM
  • Flacco, CJ
  • Heusch, CA
  • Kroseberg, J
  • Lockman, WS
  • et al.
Abstract

We measure the absolute branching fraction for D0→K-π+ using partial reconstruction of B̄0→D*+X -ν̄ decays, in which only the charged lepton and the pion from the decay D*+→D0π+ are used. Based on a data sample of 230×106 BB̄ pairs collected at the Υ(4S) resonance with the BABAR detector at the PEP-II asymmetric-energy B factory at SLAC, we obtain B(D0→K-π+)=(4.007±0.037±0.072) %, where the first uncertainty is statistical and the second is systematic. © 2008 The American Physical Society.

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