Weak Decays of Doubly Heavy Baryons: Multi-body Decay Channels

Abstract

The newly-discovered ${\Xi }_{cc}^{++}$ decays into the ${\Lambda }_c^{+}{K}^{-}{\pi }^{+}{\pi }^{+}$, but the experimental data has indicated that this decay is not saturated by any two-body intermediate state. In this work, we analyze the multi-body weak decays of doubly heavy baryons ${\Xi }_{cc}$, ${\Omega }_{cc}$, ${\Xi }_{bc}$, ${\Omega }_{bc}$, ${\Xi }_{bb}$ and ${\Omega }_{bb}$, in particular the three-body nonleptonic decays and four-body semileptonic decays. We classify various decay modes according to the quark-level transitions and present an estimate of the typical branching fractions for a few golden decay channels. Decay amplitudes are then parametrized in terms of a few SU(3) irreducible amplitudes. With these amplitudes, we find a number of relations for decay widths, which can be examined in future.

47pages, 1figure. arXiv admin note: substantial text overlap with arXiv:1707.06570

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Cited by in corpus (27)

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• Analysis of the semileptonic and nonleptonic two-body decays of the double heavy charm baryon states ${\Xi }_{cc}^{++},{\Xi }_{cc}^{+}$ and ${\Omega }_{cc}^{+}$
• Sum rules for $CP$ asymmetries of charmed baryon decays in the $SU(3{)}_F$ limit
• Doubly heavy tetraquark multiplets as heavy antiquark-diquark symmetry partners of heavy baryons
• Heavy Flavour Physics and CP Violation at LHCb: a Ten-Year Review
• Light-Cone Sum Rules Analysis of ${\Xi }_{Q{Q}^{\prime }}\to {\Sigma }_{Q^{\prime }}$ Weak Decays
• Search for the doubly charmed baryon ${\Xi }_{cc}^{+}$ in the ${\Xi }_c^{+}{\pi }^{-}{\pi }^{+}$ final state
• A global analysis of charmless two body hadronic decays for anti-triplet charmed baryons
• QCD sum rules analysis of weak decays of doubly heavy baryons: the $b\to c$ processes
• Weak Decays of Stable Open-bottom Tetraquark by SU(3) Symmetry Analysis
• Weak Decays of Triply Heavy Tetraquarks $b\bar{c}b\bar{q}$
• Strong interaction of doubly heavy spin-3/2 baryons with light vector mesons
• Searching for tetraquark through weak decays of b-baryons
• W-exchange contribution to the decays ${\Xi }_{cc}^{++}\to {\Xi }_c^{+(\prime )}{\pi }^{+}$ using light-cone sum rules
• Generation of $SU(3)$ sum rule for charmed baryon decay
• SU(3) analysis of fully-light tetraquarks in heavy meson weak decays
• The Production of Singly Charmed Pentaquark $\bar{c}qqqq$ from Bottom Baryon
• Generation of isospin sum rules in heavy hadron weak decays
• Light-Cone Sum Rules Analysis of ${\Xi }_{Q{Q}^{\prime }q}\to {\Sigma }_{Q^{\prime }}^{\ast }$ Weak Decays
• Observation of the doubly-charmed-baryon decay ${\Xi }_{cc}^{++}\to {\Xi }_c^0{\pi }^{+}{\pi }^{+}$
• Isospin sum rules in charmed baryon weak decays
• Semileptonic decays of doubly charmed baryons with bag model
• The nonleptonic decays ${\Xi }_{cc}^{++}\to {\Xi }_c^{(\prime )+}{\pi }^{+}$ within the nonrelativistic quark model
• Chiral Lagrangians for spin-$\frac{1}{2}$ and spin-$\frac{3}{2}$ doubly charmed baryons
• The nonleptonic decays of double-charmed baryon ${\Omega }_{cc}^{+}$ within the nonrelativistic quark model
• Topological diagrams of doubly charmed baryon decays in the $SU(3{)}_F$ limit
• The effects of polarization on the observables in the decay ${\Xi }_{cc}^{++}\to {\Xi }_c^{+}\bar{\ell }{\nu }_{\ell }$