Form factors of semileptonic decays of heavy mesons in the quark confinement model

M. A. Ivanov, O. E. Khomutenko, and T. Mizutani
Phys. Rev. D 46, 3817 – Published 1 November 1992
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Abstract

We compute form factors of the semileptonic decay B(D)Xlν (we denote by X the final pseudoscalar or vector state) within the quark confinement model. As MQ, one finds that the form factors of the BD(D*)eν decay state are expressed in terms of the universal function being dependent on the product of the four-velocities of initial and final heavy mesons in accordance with Isgur-Wise symmetry. At the same time, the form factors of decays with the final light state are found to be monopole functions except the axial-vector form factor A1(t), which goes to a constant in this limit. We compare our results obtained by explicit and asymptotic formulas with other approaches and available experimental data.

  • Received 3 February 1992

DOI:https://doi.org/10.1103/PhysRevD.46.3817

©1992 American Physical Society

Authors & Affiliations

M. A. Ivanov

  • Department of Physics, Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061
  • Laboratory of Theoretical Physics, Joint Institute for Nuclear Research, Head Post Office P.O.Box 79, 101000 Moscow, Russia

O. E. Khomutenko

  • Department of Physics, Simferopol University, 333036 Simferopol, Ukraine

T. Mizutani

  • Department of Physics, Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061

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Issue

Vol. 46, Iss. 9 — 1 November 1992

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