QCD radiative correction to the hadronic annihilation rate of 1{sup +{minus}} heavy quarkonium

Journal Article · Sun Sep 01 04:00:00 EDT 1996 · Physical Review, D

DOI:https://doi.org/10.1103/PhysRevD.54.3065· OSTI ID:383367

Huang, H ^[1]; Chao, K ^[1]

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1. China Center of Advanced Science and Technology (World Laboratory), Beijing 100080, People`s Republic of (China)

The hadronic annihilation rate of 1{sup +{minus}} heavy quarkonium is given to next-to-leading order in {alpha}{sub {ital s}} and leading order in {ital v}{sup 2} using a recently developed factorization formalism which is based on NRQCD. The result includes both the annihilation of the {ital P}-wave color-singlet {ital Q{bar Q}} component, and the annihilation of the {ital S}-wave color-octet {ital Q{bar Q}} component of the quarkonium. The notorious infrared divergences due to soft gluons, i.e., the logarithms associated with the binding energy, encountered in previous perturbative calculations of 1{sup +{minus}} quarkonium decays, are found to be explicitly canceled, and a finite result for the decay width to order {alpha}{sup 3}{sub {ital s}} is then obtained. {copyright} {ital 1996 The American Physical Society.}

• OSTI ID: 383367
• Journal Information: Physical Review, D, Journal Name: Physical Review, D Journal Issue: 5 Vol. 54; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
ANNIHILATION
BINDING ENERGY
COLOR
DECAY
FACTORIZATION
GLUONS
INFRARED DIVERGENCES
P WAVES
QUANTUM CHROMODYNAMICS
QUARKONIUM
RADIATIVE CORRECTIONS
S WAVES