Non-relativistic Model for the Semileptonic Λ_b \to Λ_c Decay

Abstract

We calculate the decay width for ${\Lambda }_b\to {\Lambda }_{c}e\bar{\nu }$ in the frame work of a nonrelativistic quark (NRQ) model of heavy baryons where the light quarks play the role of spectators. Our calculation does not make an explicit use of the heavy quark symmetry. The branching ratio for the above process as calculated here agrees reasonably well with the experimental value.

13 pages, plain Latex file

Cited by in corpus (5)

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• Combined nonrelativistic constituent quark model and heavy quark effective theory study of semileptonic decays of Λ_b and Ξ_b baryons
• On the choice of heavy baryon currents in the relativistic three-quark model
• First Measurement of the Ratio of Branching Fractions B(Lambda_b to Lambda_c mu nu)/B(Lambda_b to Lambda_c pi)