Exact string potential and heavy quarkonia

Journal Article · Sun Mar 01 00:00:00 EST 1992 · Physical Review, D (Particles Fields); (United States)

DOI:https://doi.org/10.1103/PhysRevD.45.1769· OSTI ID:7277609

Bambah, B A ^[1]; Dharamvir, K; Kaur, R ^[2]; Sharma, A C ^[3]

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1. School of Physics, University of Hyderabad, Hyderabad 500134, Andhra Pradesh (India)
2. Department of Physics, Panjab University, Chandigarh 160 014 (India)
3. Department of Physics, Kurukshetra University, Kurukshetra, Haryana (India)

Using the exact form of the static string potential we reinvestigate previous potential-model calculations of the energy levels of {ital q{bar q}} resonances. We show the effect of higher-order corrections to strings on the quarkonium spectroscopy and the leptonic decays of the {Upsilon} and {ital J}/{psi}, where we find that the roughened form of the string potential has a significant effect. We also propose a new form of the potential which incorporates both the quantum effects and asymptotic freedom.

• OSTI ID: 7277609
• Journal Information: Physical Review, D (Particles Fields); (United States), Vol. 45:5; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
MESON SPECTROSCOPY
QUARKONIUM
ENERGY LEVELS
STRING MODELS
COULOMB FIELD
COUPLING CONSTANTS
LEPTONIC DECAY
QUANTUM CHROMODYNAMICS
VACUUM POLARIZATION
VECTOR MESONS
WILSON LOOP
BASIC INTERACTIONS
BOSONS
COMPOSITE MODELS
DECAY
ELECTRIC FIELDS
ELEMENTARY PARTICLES
EXTENDED PARTICLE MODEL
FIELD THEORIES
HADRONS
INTERACTIONS
MATHEMATICAL MODELS
MESONS
PARTICLE DECAY
PARTICLE MODELS
QUANTUM FIELD THEORY
QUARK MODEL
SPECTROSCOPY
WEAK INTERACTIONS
WEAK PARTICLE DECAY
662350* - Decays of Mesons- (1992-)
662110 - General Theory of Particles & Fields- Theory of Fields & Strings- (1992-)