Exclusive semileptonic B decays to radially excited D mesons

Details Exclusive semileptonic B decays to radially excited D mesons Exclusive semileptonic B decays to radially excited D mesons

1999-12-15

arxiv.org/abs/hep-ph/9912357v1

Phys.Rev. D62 (2000) 014032

Physics

High Energy Physics

High Energy Physics - Phenomenology

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

Scientific paper

10.1103/PhysRevD.62.014032

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'e\nu decay is essentially increased by 1/m_Q corrections, while the one for B-> D*'e\nu is only slightly influenced by them.

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