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arXiv · hep-ph/9912357

Exclusive semileptonic B decays to radially excited D mesons

D. Ebert·R. N. Faustov·V. O. Galkin
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Abstract

Exclusive semileptonic B decays to radially excited charmed mesons are investigated at the first order of the heavy quark expansion. The arising leading and subleading Isgur-Wise functions are calculated in the framework of the relativistic quark model. It is found that the 1/m_Q corrections play an important role and substantially modify results. An interesting interplay between different corrections is found. As a result the branching ratio for the B-> D'eνdecay is essentially increased by 1/m_Q corrections, while the one for B-> D*'eνis only slightly influenced by them.

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D. Ebert, R. N. Faustov, V. O. Galkin. 1999-12-15. Exclusive semileptonic B decays to radially excited D mesons. https://doi.org/10.1103/physrevd.62.014032

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