Study of inclusive B{sup -} and B{sup 0} decays to flavor-tagged D, D{sub s}, and {lambda}{sub c}{sup +}

Journal Article · Sun Apr 01 00:00:00 EDT 2007 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.75.072002· OSTI ID:21020237

We report on a study of inclusive B{sup -} and B{sup 0} meson decays to D{sup 0}X, D{sup 0}X, D{sup +}X, D{sup -}X, D{sub s}{sup +}X, D{sub s}{sup -}X, {lambda}{sub c}{sup +}X, {lambda}{sub c}{sup -}X, based on a sample of 231x10{sup 6} BB events recorded with the BABAR detector at the {upsilon}(4S) resonance. Events are selected by completely reconstructing one B and searching for a reconstructed charm particle in the rest of the event. From the measured branching fractions of these decays, we infer the number of charm and anticharm particles per B decay, separately for charged and neutral parents. We derive the total charm yield per B{sup -} decay, n{sub c}{sup -}=1.208{+-}0.023{+-}0.040{sub -0.029}{sup +0.035}, and per B{sup 0} decay, n{sub c}{sup 0}=1.203{+-}0.030{+-}0.034{sub -0.035}{sup +0.044} where the first uncertainty is statistical, the second is systematic, and the third reflects the charm branching-fraction uncertainties. We also present the charm momentum distributions measured in the B rest frame.

• OSTI ID: 21020237
• Journal Information: Physical Review. D, Particles Fields, Vol. 75, Issue 7; Other Information: DOI: 10.1103/PhysRevD.75.072002; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
B MINUS MESONS
B NEUTRAL MESONS
BRANCHING RATIO
D S MESONS
DISTRIBUTION
ELECTRON-POSITRON INTERACTIONS
INCLUSIVE INTERACTIONS
LAMBDA C PLUS BARYONS
MULTIPARTICLE SPECTROMETERS
NUCLEAR REACTION YIELD
PARTICLE DECAY
PARTICLE IDENTIFICATION
PARTICLE PRODUCTION
PEP STORAGE RINGS
UPSILON-10580 MESONS