Exclusive semileptonic decays of B mesons to orbitally excited D mesons in the relativistic quark modelстатья
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Аннотация:Exclusive semileptonic B meson decays to orbitally excited D mesons are investigated in the infinitely heavy quark Limit in the framework of the relativistic quark model based on the quasipotential approach. The B-->D**e nu Isgur-Wise functions tau(3/2)(w) and tau(1/2)(w) are determined. It is found that the relativistic transformation of the meson wave functions (Wigner rotation of the Light quark spin) contribute already at the leading order of the heavy quark expansion. (C) 1998 Elsevier Science B.V. All rights reserved.