Exclusive semileptonic B decays to radially excited D mesons

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.

19 pages, revtex, 6 figures, uses rotating.sty

References in corpus (1)

• Heavy quark 1/m_Q contributions in semileptonic B decays to orbitally excited D mesons

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