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BLM-Resummation and OPE in the Heavy Flavor Transitions
All-order resummation of the effect if running coupling $\alpha_s$ is performed for the zero recoil sum rule for the axial current and for the kinetic operator $\mu_\pi^2$. The perturbative corrections to well-defined objects of OPE proved to be very moderate. The renormalization of the kinetic oper...
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| Lenguaje: | eng |
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1996
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| Acceso en línea: | https://dx.doi.org/10.1016/S0550-3213(97)00121-1 http://cds.cern.ch/record/313227 |