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

Abstract

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.

Publication Date:
OSTI Identifier:
21020237
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review. D, Particles Fields; Journal Volume: 75; Journal Issue: 7; Other Information: DOI: 10.1103/PhysRevD.75.072002; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
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

Citation Formats

NONE. Study of inclusive B{sup -} and B{sup 0} decays to flavor-tagged D, D{sub s}, and {lambda}{sub c}{sup +}. United States: N. p., 2007. Web. doi:10.1103/PHYSREVD.75.072002.
NONE. Study of inclusive B{sup -} and B{sup 0} decays to flavor-tagged D, D{sub s}, and {lambda}{sub c}{sup +}. United States. doi:10.1103/PHYSREVD.75.072002.
NONE. Sun . "Study of inclusive B{sup -} and B{sup 0} decays to flavor-tagged D, D{sub s}, and {lambda}{sub c}{sup +}". United States. doi:10.1103/PHYSREVD.75.072002.
@article{osti_21020237,
title = {Study of inclusive B{sup -} and B{sup 0} decays to flavor-tagged D, D{sub s}, and {lambda}{sub c}{sup +}},
author = {NONE},
abstractNote = {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.},
doi = {10.1103/PHYSREVD.75.072002},
journal = {Physical Review. D, Particles Fields},
number = 7,
volume = 75,
place = {United States},
year = {Sun Apr 01 00:00:00 EDT 2007},
month = {Sun Apr 01 00:00:00 EDT 2007}
}