Leptonic decay rates of charmonium S and D states
- Department of Physics, Penn State University, University Park, Pennsylvania 16802 (United States)
- Department of Physics, University of Massachusetts, Lowell, Lowell, Massachusetts 01854 (United States)
- Penn State University at New Kensington, New Kensington, Pennsylvania 15068 (United States)
We calculate the leptonic decay rates of the {sup 3}S{sub 1} and the {sup 3}D{sub 1} states of charmonium including their relativistic and single gluonic radiative corrections within the framework of a nonsingular potential model proposed by Gupta, Johnson, Repko, and Suchyta. We find that the relativistic corrections and the single gluonic radiative corrections are both significant. But single gluonic radiative corrections are significantly smaller than the well-known static limit results. Since we work in a formalism where the quarks are assumed to be on mass shell, there is some ambiguity about treating the infrared divergent part of the radiative correction terms. {copyright} {ital 1997} {ital The American Physical Society}
- OSTI ID:
- 543918
- Journal Information:
- Physical Review, D, Journal Name: Physical Review, D Journal Issue: 9 Vol. 56; ISSN PRVDAQ; ISSN 0556-2821
- Country of Publication:
- United States
- Language:
- English
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