Weak Decays of Doubly Heavy Baryons: ${\mathcal{B}}_{cc}\to {\mathcal{B}}_{c}V$

Abstract

The weak decays of a spin-$1/2$ doubly charm baryon (${\mathcal{B}}_{cc}$) to a spin-$1/2$ singly charm baryon (${\mathcal{B}}_c$) and a light vector meson ($V$) are studied under a phenomenological scheme. The contributions are classified into different topological diagrams, among which the short distance ones are calculated under the factorization hypothesis, and the long distance contributions are modelled as final-state interactions (FSIs) which are estimated with the one-particle-exchange model. In calculation the topological contributions tend to fall in a hierarchy. The branching fractions or decay widths are estimated, and it indicates that ${\Xi }_{cc}^{+}\to {\Xi }_c^{+}{\pi }^{+}{\pi }^{-}$ and ${\Omega }_{cc}^{+}\to {\Xi }_c^{+}{K}^{-}{\pi }^{+}$ can be used as candidate decays for searching ${\Xi }_{cc}^{+}$ and ${\Omega }_{cc}^{+}$. Some decays that are mainly activated by the long distance effects are found, observation on which in future experiments can help to understand the role of FSIs in charm baryon decays.

arXiv comment29 pages, 5 figures, 7 tables; version published in EPJC

References in corpus (43)

• Phenomenology of Heavy Meson Chiral Lagrangians
• Mixing and Decay Constants of Pseudoscalar Mesons
• Observation of the doubly charmed baryon ${\Xi }_{cc}^{++}$
• Final State Interactions in Hadronic B Decays
• First Observation of the Doubly Charmed Baryon Xi_cc^+
• Confirmation of the Double Charm Baryon Xi_cc+ via its Decay to p D+ K-
• Mixing and Decay Constants of Pseudoscalar Mesons: The Sequel
• Observation of New States Decaying into ${\Lambda }_c^{+}{K}^{-}{\pi }^{+}$ and ${\Lambda }_c^{+}{K}_S^0{\pi }^{-}$
• Branching ratios and direct CP asymmetries in $D\to PP$ decays
• Search for Doubly Charmed Baryons Xi_cc^+ and Xi_cc^++ in BABAR
• First observation of the doubly charmed baryon decay ${\Xi }_{cc}^{++}\to {\Xi }_c^{+}{\pi }^{+}$
• Discovery Potentials of Doubly Charmed Baryons
• Weak Decays of Doubly Heavy Baryons: SU(3) Analysis
• Weak Decays of Doubly Heavy Baryons: the $1/2\to 1/2$ case
• Form Factors and Strong Couplings of Heavy Baryons from QCD Light-Cone Sum Rules
• Measurement of the lifetime of the doubly charmed baryon ${\Xi }_{cc}^{++}$
• Weak Decays of Doubly Heavy Baryons: Multi-body Decay Channels
• Rates for the reactions antiproton-proton --> pi phi and gamma phi
• Anatomy of the pQCD Approach to the Baryonic Decays ${\Lambda }_b\to p\pi ,pK$
• Search for the doubly charmed baryon Xi_cc^+
• Perturbative corrections to $B\to D$ form factors in QCD
• Subleading-power corrections to the radiative leptonic $B\to \gamma \ell \nu$ decay in QCD
• Recent Anomalies in B Physics
• Weak decays of doubly heavy baryons: the $1/2\to 3/2$ case
• Hadronic Molecular States Composed of Heavy Flavor Baryons
• Variational Analysis of Mass Spectra and Decay Constants for Ground State Pseudoscalar and Vector Mesons in Light-Front Quark Model
• Final State Interaction In $B\to KK$ Decays
• Weak decays of doubly heavy baryons: the FCNC processes
• Doubly-Heavy Baryon Weak Decays: ${\Xi }_{bc}^0\to p{K}^{-}$ and ${\Xi }_{cc}^{+}\to {\Sigma }_c^{++}(2520)K^{-}$
• Weak decays of doubly heavy baryons: "decay constants"
• Strong coupling constants of light pseudoscalar mesons with heavy baryons in QCD
• Strong couplings and form factors of charmed mesons in holographic QCD
• Significance of Single Pion Exchange Inelastic Final State Interaction for D->VP Processes
• Final State Interactions in $D^0\to K^0\overline{K^0}$
• Hunting for the X_b via Radiative Decays
• $D\to \pi \pi$ decays with Final State Interactions
• Doubly heavy quark baryon spectroscopy and semileptonic decay
• The strong ${\Lambda }_{b}NB$ and ${\Lambda }_{c}ND$ vertices
• Renormalization group equation improved analysis of $B\to \pi$ form factors from Light-Cone Sum Rules
• Heavy baryon--light vector meson couplings in QCD
• SU(3) Predictions for Weak Decays of Doubly Heavy Baryons -- including SU(3) breaking terms
• Exclusive $c\to s,d$ semileptonic decays of ground-state spin-1/2 and spin-3/2 doubly heavy $cb$ baryons
• Analysis of the strong coupling form factors of ${\Sigma }_{b}NB$ and ${\Sigma }_{c}ND$ in QCD sum rules

Cited by in corpus (28)

• Charmed Baryon Physics Circa 2021
• QCD Sum Rules Analysis of Weak Decays of Doubly-Heavy Baryons
• Ab initio three-loop calculation of the W-exchange contribution to nonleptonic decays of double charm baryons
• Light-Cone Sum Rules Analysis of ${\Xi }_{Q{Q}^{\prime }q}\to {\Lambda }_{Q^{\prime }}$ Weak Decays
• A comprehensive analysis of weak transition form factors for doubly heavy baryons in the light front approach
• Sum rules for $CP$ asymmetries of charmed baryon decays in the $SU(3{)}_F$ limit
• Two-body weak decays of doubly charmed baryons
• Rescattering mechanism of weak decays of double-charm baryons
• Weak Decays of Doubly Heavy Baryons: W-Exchange
• Heavy Flavour Physics and CP Violation at LHCb: a Ten-Year Review
• Towards a Heavy Diquark Effective Theory for Weak Decays of Doubly Heavy Baryons
• 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
• Novel ideas in nonleptonic decays of double heavy baryons
• QCD sum rules analysis of weak decays of doubly heavy baryons: the $b\to c$ processes
• Strong Coupling Constants of the Doubly Heavy ${\Xi }_{QQ}$ Baryons with $\pi$ Meson
• Search for the doubly charmed baryon ${\Omega }_{cc}^{+}$
• Weak Decays of Doubly Heavy Baryons: ${\mathcal{B}}_{cc}\to \mathcal{B}{D}^{(\ast )}$
• Strong interaction of doubly heavy spin-3/2 baryons with light vector mesons
• Estimates of exchange topological contributions and $CP$-violating observables in ${\Lambda }_b\to \Lambda \varphi$ decay
• From topological amplitude to rescattering dynamics
• Evidence of $A_{CP}(D^0\to {\pi }^{+}{\pi }^{-})$ implies observable $CP$ violation in the $D^0\to {\pi }^0{\pi }^0$ decay
• From topological amplitude to rescattering dynamics in doubly charmed baryon decays
• Semileptonic decays of doubly charmed baryons with bag model
• The nonleptonic decays of double-charmed baryon ${\Omega }_{cc}^{+}$ within the nonrelativistic quark model
• Strong Vertices of Doubly Heavy Spin-3/2 Baryons with Light Pseudoscalar Mesons
• Topological diagrams of doubly charmed baryon decays in the $SU(3{)}_F$ limit
• The effects of polarization on the observables in the decay ${\Xi }_{cc}^{++}\to {\Xi }_c^{+}\bar{\ell }{\nu }_{\ell }$