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Light-Cone Sum Rules Analysis of Xi_(QQ^(prime))toSigma_(Q^(prime)) Weak Decays
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Light-Cone Sum Rules Analysis of Xi_(QQ^(prime))toSigma_(Q^(prime)) Weak Decays
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As a continuation of our previous work, we investigate the weak decays of doubly-heavy baryons $\Xi_{QQ^{\prime}}$ into sextet $\Sigma_{Q^{\prime}}$ with light-cone sum rules. We calculate the form factors for these decays with the parallel light-cone distribution amplitudes of $\Sigma_{Q^{\prime}}$. Numerical results of these form factors are used to predict the decay widths and branching ratios of the corresponding semi-leptonic processes. Parametric uncertainties and theoretical analyses are also given in detail. We find that the decay widths of $\Xi_{cc}$ and $\Xi_{bc}$ decays are several orders of magnitude larger than those of $\Xi_{bb}$ decays.
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Cited by 1 Pith paper
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Semileptonic and nonleptonic weak decays of bottom baryons $\Omega^{(*)}_{b}$
QCD sum-rule calculation predicts Ω_b^*→Ω_c and Ω_b→Ω_c^* semileptonic and nonleptonic decay widths, e.g. Γ(Ω_b^*→Ω_c eν)=(1.54+0.29−0.27)×10^-14 GeV.
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