Nonleptonic and semileptonic {Lambda _b} rightarrow {Lambda _c} transitions in a potential quark model

S. Rahmani,Jan Kříž,H. Hassanabadi

doi:10.1140/epjc/s10052-020-8214-1

S. Rahmani, Jan Kříž + Show 1 more

Open Access

https://doi.org/10.1140/epjc/s10052-020-8214-1

Copy DOI

Abstract

Nonleptonic and semileptonic decay widths of {Lambda _b} rightarrow {Lambda _c} are analyzed within heavy quark limit and Isgur-Wise formalism. A modified QCD Cornell interaction with the additional logarithmic term in the hyperspherical coordinates is considered and the masses of heavy flavour baryons are calculated. The obtained masses are consequently employed to study the rates of {Lambda _b} rightarrow {Lambda _c}. The achieved results are motivating.

Highlights

In recent years a huge number of both experimental and theoretical studies on properties of heavy baryons and the masses of ground states of charmed and bottom baryons containing a single heavy quark b or c have been published
Weak decays of singly bottom baryons to final states involving singly charmed baryons are very interesting since they can help to understand the dynamic structure of heavy hadrons based on heavy quark effective theory (HQET) [1,2]
HQET is an effective tool for studying weak decays of heavy baryons. b can only decay via weak interactions

Summary

Introduction

In recent years a huge number of both experimental and theoretical studies on properties of heavy baryons and the masses of ground states of charmed and bottom baryons containing a single heavy quark b or c have been published. Weak decays of singly bottom baryons to final states involving singly charmed baryons are very interesting since they can help to understand the dynamic structure of heavy hadrons based on heavy quark effective theory (HQET) [1,2]. HQET is an effective tool for studying weak decays of heavy baryons.

Results

Conclusion