Inclusive charm production in {chi}{sub b} decays

Journal Article · Sat Sep 01 04:00:00 EDT 2007 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.76.054001· OSTI ID:21027684

Bodwin, Geoffrey T ^[1]; Braaten, Eric ^[2]; Kang, Daekyoung ^[2]; Lee, Jungil ^[1]

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1. High Energy Physics Division, Argonne National Laboratory, 9700 South Cass Avenue, Argonne, Illinois 60439 (United States)
2. Physics Department, Ohio State University, Columbus, Ohio 43210 (United States)

We calculate the inclusive decay rate of the spin-triplet bottomonium states {chi}{sub bJ} into charm hadrons, including the leading-order color-singlet and color-octet bb annihilation mechanisms. We also calculate the momentum distribution of the charm quark from the decay of {chi}{sub bJ}. The infrared divergences from the color-singlet process bb{yields}ccg are factored into the probability density at the origin for a bb pair in a color-octet state. That probability density can be determined phenomenologically from the fraction of decays of {chi}{sub bJ} that include charm hadrons. It can then be used to predict the partial widths into light hadrons for all four states in the P-wave bottomonium multiplet.

• OSTI ID: 21027684
• Journal Information: Physical Review. D, Particles Fields, Journal Name: Physical Review. D, Particles Fields Journal Issue: 5 Vol. 76; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ANNIHILATION
B QUARKS
BOTTOMONIUM
C QUARKS
COLOR MODEL
DISTRIBUTION
GLUONS
INCLUSIVE INTERACTIONS
INFRARED DIVERGENCES
P WAVES
PARTICLE DECAY
PARTICLE PRODUCTION
PARTICLE WIDTHS
PROBABILITY
QUARKS
SPIN
TRIPLETS