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Dominance of the light-quark condensate in the heavy-to-light exclusive decays
Using the QCD {\it hybrid} (moments--Laplace) sum rule, we show semi--analytically that, in the limit M_b \rar \infty, the q^2 and M_b behaviours of the heavy--to--light exclusive (\bar B\rar \rho~(\pi) semileptonic as well as the B\rar \rho\gamma rare) decay--form factors are universally dominated...
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| Lenguaje: | eng |
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1994
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| Acceso en línea: | https://dx.doi.org/10.1016/0370-2693(94)01428-F http://cds.cern.ch/record/262908 |