Exclusive semileptonic B decays to excited D mesons
D. Ebert, R. N. Faustov, V. O. Galkin
Abstract
Exclusive semileptonic B decays to orbitally and radially excited charmed mesons are investigated in the first order of the heavy quark expansion. The emerging leading and subleading Isgur-Wise functions are calculated in the framework of the relativistic quark model. It is found that both relativistic and the 1/mQ corrections play an important role and substantially modify results. An interesting interplay between different corrections is observed.
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