Relativistic corrections to radiative transitions and spectra of quarkonia

Journal Article · Thu Nov 01 04:00:00 EST 1984 · Phys. Rev. D; (United States)

DOI:https://doi.org/10.1103/PhysRevD.30.1924· OSTI ID:6045040

Grotch, H; Owen, D A; Sebastian, K J

We calculate the energy spectrum and the one-photon E1 and M1 decays of charmonium and b-quarkonium including their first-order relativistic corrections, within the context of the Buchmueller-Tye potential. Results seem to suggest that the confining potential is predominantly scalar since this assumption gives good agreement for spectra and for E1 decay rates of cc-bar and gives reasonable results for bb-bar. For M1 decays discrepancies persist unless the quarks have large anomalous moments, but the resolution of such discrepancies can probably be achieved by other means. As an interesting by-product of our investigations we find that for the nonrelativistically inhibited E1 decay UPSILON''..-->..chi/sub j//sup b/+..gamma.. of the bb-bar system, some rates are enhanced by a huge factor by first-order relativistic effects. When more data are available these decays should provide an additional testing ground for models of relativistic corrections.

• Research Organization: Department of Physics, The Pennsylvania State University, University Park, Pennsylvania 16802
• OSTI ID: 6045040
• Journal Information: Phys. Rev. D; (United States), Journal Name: Phys. Rev. D; (United States) Vol. 30:9; ISSN PRVDA
• Country of Publication: United States
• Language: English

Related Subjects

645202* -- High Energy Physics-- Particle Interactions & Properties-Theoretical-- Electromagnetic Interactions & Properties
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
CHARMONIUM
E1-TRANSITIONS
ELEMENTARY PARTICLES
ENERGY SPECTRA
ENERGY-LEVEL TRANSITIONS
FIELD THEORIES
GENERAL RELATIVITY THEORY
HAMILTONIANS
HYPERFINE STRUCTURE
M1-TRANSITIONS
MASSLESS PARTICLES
MATHEMATICAL OPERATORS
MULTIPOLE TRANSITIONS
PHOTONS
QUANTUM CHROMODYNAMICS
QUANTUM FIELD THEORY
QUANTUM OPERATORS
QUARKONIUM
RELATIVITY THEORY
SCALAR FIELDS
SPECTRA