Weak decays of doubly heavy baryons: decays to system of $\pi$ mesons

Abstract

In the presented article we consider exclusive weak decays of doubly heavy baryons with spin $J=1/2$ with production of leptonic pair or a set of light mesons. Using QCD factorization theorem and spectral functions approach we obtain theoretical predictions for the partial probabilities of these decays and distributions over various kinematic variables. According to the obtaining results partial probabilities of some of researched decays are large enough to be observed experimentally.

Small changes (spectral functions' parametrization updated, some of the branching fractions have slightly change, affiliation information is updated). Accepted for publication in Phys.Rev.D

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• Two-body weak decays of doubly charmed baryons
• Search for the doubly heavy ${\Xi }_{bc}^0$ baryon via decays to $D^{0}p{K}^{-}$
• Observation of the doubly charmed baryon decay ${\Xi }_{cc}^{++}\to {\Xi }_c^{{}^{\prime }+}{\pi }^{+}$
• QCD sum rules analysis of weak decays of doubly heavy baryons: the $b\to c$ processes
• $SU(3)$ Flavor Symmetry for Weak Hadronic Decays of ${\mathbf{B}}_{bc}$ Baryons
• W-exchange contribution to the decays ${\Xi }_{cc}^{++}\to {\Xi }_c^{+(\prime )}{\pi }^{+}$ using light-cone sum rules
• Nonleptonic decays of ${\Xi }_{cc}\to {\Xi }_c\pi$ with ${\Xi }_c-{\Xi }_c^{\prime }$ mixing
• Semileptonic decays of doubly charmed baryons with ${\Xi }_c-{\Xi }_c^{\prime }$ mixing
• Exclusive Decays of the Doubly Heavy Baryon ${\Xi }_{bc}$
• Strong decays of the low-lying doubly bottom baryons
• Doubly charmed baryon decays ${\Xi }_{cc}^{++}\to {\Xi }_c^{(\prime )+}{\pi }^{+}$ in the quark model
• The effects of polarization on the observables in the decay ${\Xi }_{cc}^{++}\to {\Xi }_c^{+}\bar{\ell }{\nu }_{\ell }$