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Leptonic decay constants of heavy quarkonia in effective QCD sum rules

โœ Scribed by V.V. Kiselev


Book ID
116148645
Publisher
Elsevier Science
Year
1993
Tongue
English
Weight
653 KB
Volume
406
Category
Article
ISSN
0550-3213

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Sum rule calculation of semi-leptonic de
โœ H.G. Dosch ๐Ÿ“‚ Article ๐Ÿ“… 1999 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 212 KB

The semi-leptonic decay amplitudes of heavy A hyperons are calculated with sum rules in full QCD. The decay rate of the Aยข ~ AtP agrees in the errors with the experimental value. For the decay Ab --A~lP a substantial deviation from HQET is found in our approach.