Semileptonic decays of doubly heavy baryons in the relativistic quark model

Abstract

Semileptonic decays of doubly heavy baryons are studied in the framework of the relativistic quark model. The doubly heavy baryons are treated in the quark-diquark approximation. The transition amplitudes of heavy diquarks bb and bc going respectively to bc and cc are explicitly expressed through the overlap integrals of the diquark wave functions in the whole accessible kinematic range. The relativistic baryon wave functions of the quark-diquark bound system are used for the calculation of the transition matrix elements, the Isgur-Wise function and decay rates in the heavy quark limit.

20 pages, 5 figures

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• Properties of heavy quarkonia and B_c mesons in the relativistic quark model
• First Observation of the Doubly Charmed Baryon Xi_cc^+
• Spectroscopy of Baryons Containing Two Heavy Quarks in Nonperturbative Quark Dynamics

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