Lambda_b and Lambda_c baryon decays at finite values of heavy quark masses

Details Lambda_b and Lambda_c baryon decays at finite values of heavy quark masses Lambda_b and Lambda_c baryon decays at finite values of heavy quark masses

1999-10-14

arxiv.org/abs/hep-ph/9910342v1

Phys.Lett.B476:58-64,2000

Physics

High Energy Physics

High Energy Physics - Phenomenology

12 pages, LaTeX-file, 1 Figure

Scientific paper

10.1016/S0370-2693(00)00111-8

Semileptonic decays of Lambda_b and Lambda_c baryons are studied within the Relativistic Three-Quark Model using finite heavy quark mass values. Employing the same parameters as have been used previously for the description of exclusive decays of heavy baryons in the heavy quark limit we calculate the six form factors of the process and the corresponding decay rates. Our calculation shows that the ``finite mass'' corrections are important in heavy-to-light transitions and are not negligible in heavy-to-heavy transitions.

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