Rigorous QCD predictions for decays of P -wave quarkonia

Journal Article · Tue Sep 01 04:00:00 EDT 1992 · Physical Review, D (Particles Fields); (United States)

DOI:https://doi.org/10.1103/PhysRevD.46.R1914· OSTI ID:7258493

Bodwin, G T ^[1]; Braaten, E ^[2]; Lepage, G P ^[3]

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1. High Energy Physics Division, Argonne National Laboratory, Argonne, Illinois 60439 (United States)
2. Department of Physics and Astronomy, Northwestern University, Evanston, Illinois 60208 (United States)
3. Newman Laboratory of Nuclear Studies, Cornell University, Ithaca, New York 14853 (United States)

Rigorous QCD predictions for the decay rates of the {ital P}-wave states of heavy quarkonia are presented. They are based on a new factorization theorem which is valid to leading order in the heavy-quark velocity and to all orders in the running coupling constant of QCD. The decay rates for all four {ital P} states into light-hadronic or electromagnetic final states are expressed in terms of two phenomenological parameters, whose coefficients are perturbatively calculable. Logarithms of the binding energy encountered in previous perturbative calculations of {ital P}-wave decays are factored into a phenomenological parameter that is related to the probability for the heavy--quark-antiquark pair to be in a color-octet {ital S}-wave state. Applying these predictions to charmonium, we use measured decay rates for the {chi}{sub {ital c}1} and {chi}{sub {ital c}2} to predict the decay rates of the {chi}{sub {ital c}0} and {ital h}{sub {ital c}}.

• OSTI ID: 7258493
• Journal Information: Physical Review, D (Particles Fields); (United States), Journal Name: Physical Review, D (Particles Fields); (United States) Vol. 46:5; ISSN PRVDA; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

662230* -- Quantum Chromodynamics-- (1992-)
662440 -- Properties of Other Particles Including Hypothetical Particles-- (1992-)
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ANGULAR MOMENTUM
BINDING ENERGY
BOSONS
CHARMONIUM
COLOR MODEL
COMPOSITE MODELS
COUPLING CONSTANTS
DECAY
ELEMENTARY PARTICLES
ENERGY
FACTORIZATION
FIELD THEORIES
GLUONS
HADRONS
INFRARED DIVERGENCES
MASS
MATHEMATICAL MODELS
MESONS
P WAVES
PARTIAL WAVES
PARTICLE DECAY
PARTICLE MODELS
PARTICLE PROPERTIES
PERTURBATION THEORY
POSTULATED PARTICLES
PROBABILITY
QUANTUM CHROMODYNAMICS
QUANTUM FIELD THEORY
QUARK MODEL
QUARKONIUM
S WAVES
SPIN