Quark model relations for b-baryon decay

Abstract

Properties of b-baryon decay matrix elements (amplitudes) have been derived in a nonsymmetric quark model without any use of SU(6), SU(3), or SU(2) (isotopic spin) groups. Equalities between pairs of amplitudes are derived, and $\Lambda -\Sigma$ mixing is used to calculate the branching ratio for the transition ${\Lambda }_b\to {\Sigma }^0$.

The derivation has been simplified

References in corpus (4)

• Charmed Baryon Weak Decays with Vector Mesons
• SU(3)${}_F$ Analysis for Beauty Baryon Decays
• Isospin amplitudes in ${\Lambda }_b^0\to J/\psi \Lambda ({\Sigma }^0)$ and ${\Xi }_b^0\to J/\psi {\Xi }^0(\Lambda )$ decays
• Electromagnetic contribution to $\Sigma$-$\Lambda$ mixing using lattice QCD+QED

Cited by in corpus (3)

• Time-reversal asymmetries and angular distributions in ${\Lambda }_b\to \Lambda V$
• Sizable Time-reversal violating effects in bottom baryon decays
• Estimates of the isospin-violating ${\Lambda }_b\to {\Sigma }^0\varphi ,{\Sigma }^{0}J/\psi$ decays and the $\Sigma -\Lambda$ mixing