Non-relativistic Model for the Semileptonic \Lambda_b \to \Lambda_c Decay

Binayak Dutta-Roy; Calcutta; Debrupa Chakraverty; India); K. S. Gupta (Saha Institute of Nuclear Physics; Triptesh De

Non-relativistic Model for the Semileptonic \Lambda_b \to \Lambda_c Decay

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arxiv hep-ph/9612369 v1 pith:LZ3PJJL7 submitted 1996-12-16 hep-ph nucl-th

Debrupa Chakraverty , Triptesh De , Binayak Dutta-Roy , K. S. Gupta (Saha Institute of Nuclear Physics , Calcutta , India) This is my paper · ORCID

classification hep-phnucl-th

keywords lambdadecayheavymodelquarkaboveagreesbaryons

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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.

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