Exclusive semileptonic B decays to radially excited D mesonsстатья
Статья опубликована в высокорейтинговом журнале
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Дата последнего поиска статьи во внешних источниках: 14 сентября 2017 г.
Аннотация:Exclusive semileptonic B decays to radially excited charmed mesons are investigated at the first order of heavy quark expansion. The arising leading and subleading Isgur-Wise functions are calculated in the frame-work of the relativistic quark model. It is found that the 1/m(Q) corrections play an important role and substantially modify the 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.