Beyond UPSILON: Heavier quarkonia and the interquark force

Journal Article · Mon Jun 01 04:00:00 EDT 1981 · Phys. Rev. D; (United States)

DOI:https://doi.org/10.1103/PhysRevD.23.2638· OSTI ID:6440841

Moxhay, P; Rosner, J L; Quigg, C

A quarkonium potential constructed by inverse-scattering methods from the masses and leptonic decay widths of the UPSILON vector mesons provides a basis for extrapolation to heavier quark-antiquark bound states. Level spacings and leptonic widths are predicted for systems with ground-state masses up to 60 GeV/c/sup 2/. It is found that present uncertainties in the potential at short distances would be most conclusively resolved by measurement of the 1 /sup 3/S/sub 1/ leptonic decay rate. Less definitive but still of value would be determinations of the 2S-1S or 2S-2P level spacings, and measurement of the ratio of 2S and 1S leptonic widths. Other properties of the next quarkonium family are less sensitive indicators of short-range behavior, and can be anticipated with some confidence from experimental results already in hand. These serve to test further the flavor independence of the interquark potential.

• Research Organization: School of Physics and Astronomy, University of Minnesota, Minneapolis, Minnesota 55455
• OSTI ID: 6440841
• Journal Information: Phys. Rev. D; (United States), Journal Name: Phys. Rev. D; (United States) Vol. 23:11; ISSN PRVDA
• Country of Publication: United States
• Language: English

Related Subjects

645203* -- High Energy Physics-- Particle Interactions & Properties-Theoretical-- Weak Interactions & Properties
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BASIC INTERACTIONS
BOSONS
BOUND STATE
DECAY
ELEMENTARY PARTICLES
HADRONS
INTERACTIONS
INVERSE SCATTERING PROBLEM
LEPTONIC DECAY
MESON RESONANCES
MESONS
PARTICLE DECAY
PARTICLE INTERACTIONS
POTENTIALS
QUARK-ANTIQUARK INTERACTIONS
QUARKONIUM
RESONANCE PARTICLES
UPSILON RESONANCES
VECTOR MESONS
WEAK INTERACTIONS
WEAK PARTICLE DECAY