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Title: Measurement of the Absolute Branching Fraction of D0→K−π+
Author: Garra Ticó, Jordi
Graugés Pous, Eugeni
BABAR Collaboration
Keywords: Física de partícules
Particle physics
Issue Date: 6-Feb-2008
Publisher: American Physical Society
Abstract: We measure the absolute branching fraction for D 0 → K − π + using partial reconstruction of ¯¯¯ B 0 → D * + X ℓ − ¯ ν ℓ decays, in which only the charged lepton and the pion from the decay D * + → D 0 π + are used. Based on a data sample of 230 × 10 6 B ¯¯¯ B pairs collected at the Υ ( 4 S ) resonance with the BABAR detector at the PEP-II asymmetric-energy B factory at SLAC, we obtain B ( D 0 → K − π + ) = ( 4.007 ± 0.037 ± 0.072 ) % , where the first uncertainty is statistical and the second is systematic.
Note: Reproducció del document publicat a:
It is part of: Physical Review Letters, 2008, vol. 100, num. 5, p. 051802
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ISSN: 0031-9007
Appears in Collections:Articles publicats en revistes (Física Quàntica i Astrofísica)

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