Measurement of the Absolute Branching Fraction of D{sup 0}{yields}K{sup -}{pi}{sup +}

Journal Article · Fri Feb 08 00:00:00 EST 2008 · Physical Review Letters

DOI:https://doi.org/10.1103/PHYSREVLETT.100.051802· OSTI ID:21024707

Aubert, B; Bona, M; Boutigny, D; Karyotakis, Y; Lees, J P; Poireau, V; Prudent, X; Tisserand, V; Zghiche, A ^[1]; Garra Tico, J; Grauges, E ^[2]; Lopez, L; Palano, A ^[3]; Eigen, G; Ofte, I; Stugu, B; Sun, L ^[4]; Abrams, G S; Battaglia, M; Brown, D N ^[5]

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1. Laboratoire de Physique des Particules, IN2P3/CNRS et Universite de Savoie, F-74941 Annecy-Le-Vieux (France)
2. Universitat de Barcelona, Facultat de Fisica, Departament ECM, E-08028 Barcelona (Spain)
3. Universita di Bari, Dipartimento di Fisica and INFN, I-70126 Bari (Italy)
4. University of Bergen, Institute of Physics, N-5007 Bergen (Norway)
5. Lawrence Berkeley National Laboratory and University of California, Berkeley, California 94720 (United States)

We measure the absolute branching fraction for D{sup 0}{yields}K{sup -}{pi}{sup +} using partial reconstruction of B{sup 0}{yields}D*{sup +}Xl{sup -}{nu}{sub l} decays, in which only the charged lepton and the pion from the decay D*{sup +}{yields}D{sup 0}{pi}{sup +} are used. Based on a data sample of 230x10{sup 6} BB pairs collected at the {upsilon}(4S) resonance with the BABAR detector at the PEP-II asymmetric-energy B factory at SLAC, we obtain B(D{sup 0}{yields}K{sup -}{pi}{sup +})=(4.007{+-}0.037{+-}0.072)%, where the first uncertainty is statistical and the second is systematic.

• OSTI ID: 21024707
• Journal Information: Physical Review Letters, Vol. 100, Issue 5; Other Information: DOI: 10.1103/PhysRevLett.100.051802; (c) 2008 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA). BABAR Collaboration; ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ASYMMETRY
B NEUTRAL MESONS
BRANCHING RATIO
D NEUTRAL MESONS
D PLUS MESONS
KAONS MINUS
LEPTONS
MESON FACTORIES
PAIR PRODUCTION
PARTICLE DECAY
PIONS PLUS
STANFORD LINEAR ACCELERATOR CENTER
XI MINUS PARTICLES