Strong and radiative decays of the doubly charmed baryons

Abstract

We have systematically studied the strong and radiative decays of the low-lying $1P$-wave doubly charmed baryons. Some interesting observations are: (i) The states ${\Xi }_{cc}^{\ast }$ and ${\Omega }_{cc}^{\ast }$ with $J^P=3/2^{+}$ have a fairly large decay rate into the ${\Xi }_{cc}\gamma$ and ${\Omega }_{cc}\gamma$ channels with a width $\sim 15$ and $\sim 7$ keV, respectively. (ii) The lowest lying excited doubly charmed baryons are dominated by the $1P$ $\rho$ mode excitations, which should be quite narrow states. They decay into the ground state with $J^P=1/2^{+}$ through the radiative transitions with a significant ratio. (iii) The total decay widths of the first orbital excitations of $\lambda$ mode ($1P_{\lambda }$ states with $J^P=1/2^{-}$, $3/2^{-}$, $5/2^{-}$) are about $\Gamma \sim 100$ MeV, and the ratio between the radiative and hadronic decay widths is about $\mathcal{O}(10^{-3})$.

10 pages, 7 figures

References in corpus (22)

• Observation of the doubly charmed baryon ${\Xi }_{cc}^{++}$
• Heavy Baryons in a Quark Model
• Charmed bottom baryon spectroscopy from lattice QCD
• Weak Decays of Doubly Heavy Baryons: SU(3) Analysis
• Weak Decays of Doubly Heavy Baryons: the $1/2\to 1/2$ case
• Charmed baryon strong decays in a chiral quark model
• Charmonium spectrum and their electromagnetic transitions with higher multipole contributions
• Static properties and semileptonic decays of doubly heavy baryons in a nonrelativistic quark model
• Strong decays of heavy-light mesons in a chiral quark model
• Excited State Mass spectra of doubly heavy baryons ${\Omega }_{cc}$, ${\Omega }_{bb}$ and ${\Omega }_{bc}$
• Structure of charmed baryons studied by pionic decays
• Radiative decays of the doubly charmed baryons in chiral perturbation theory
• Radiative decays of double heavy baryons in a relativistic constituent three-quark model including hyperfine mixing
• Radiative M1 transitions of heavy baryons in the bag model
• Magnetic moments of the doubly charmed and bottomed baryons
• Decay chain information on the newly discovered double charm baryon state ${\Xi }_{cc}^{++}$
• Strong decays of the newly observed $D(2550)$, $D(2600)$, $D(2750)$, and $D(2760)$
• Strong decays of higher excited heavy-light mesons in a chiral quark model
• Establishing low-lying doubly charmed baryons
• Study of π^{-}p \to ηn at low energies in a chiral constituent quark model
• Study of $\eta$ photoproduction on the proton in a chiral constituent quark approach via one-gluon-exchange model
• Heavy quark symmetry constraints on semileptonic form factors and decay widths of doubly heavy baryons

Cited by in corpus (35)

• An updated review of the new hadron states
• Strong and radiative decays of the low-lying $S$- and $P$-wave singly heavy baryons
• Weak Decays of Doubly Heavy Baryons: Multi-body Decay Channels
• Mass spectra and radiative transitions of doubly heavy baryons in a relativized quark model
• A Review on Partial-wave Dynamics with Chiral Effective Field Theory and Dispersion Relation
• The excited bottom-charmed mesons in a nonrelativistic quark model
• Masses and radiative decay widths of S- and P-wave singly-, doubly- and triply-heavy charm and bottom baryons
• Light-Cone Sum Rules Analysis of ${\Xi }_{Q{Q}^{\prime }q}\to {\Lambda }_{Q^{\prime }}$ Weak Decays
• 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
• Mass spectra and strong decays of charmed and charmed-strange mesons
• 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
• Towards establishing an abundant $B$ and $B_s$ spectrum up to the second orbital excitations
• Toward establishing the low-lying $P$-wave ${\Sigma }_b$ states
• Systematic analysis of doubly charmed baryons ${\Xi }_{cc}$ and ${\Omega }_{cc}$
• QCD sum rules analysis of weak decays of doubly heavy baryons: the $b\to c$ processes
• Lattice QCD study of the elastic and transition form factors of charmed baryons
• Refining radiative decay studies in singly heavy baryons
• Strong $B_{Q{Q}^{\prime }}^{\ast }{B}_{Q{Q}^{\prime }}V$ vertices and the radiative decays of $B_{QQ}^{\ast }\to B_{QQ}\gamma$ in the light-cone sum rules
• Strong interaction of doubly heavy spin-3/2 baryons with light vector mesons
• Chiral effective Lagrangian for doubly charmed baryons up to $\mathcal{O}(q^4)$
• Magnetic moments of the spin-$\frac{3}{2}$ doubly charmed baryons in covariant baryon chiral perturbation theory
• Strong decays of the low-lying doubly bottom baryons
• Toward establishing the low-lying $P$-wave excited ${\Sigma }_c$ baryon states
• The ${\Omega }_{cc}$ resonances with negative parity in the chiral constituent quark model
• Doubly charmed baryon decays ${\Xi }_{cc}^{++}\to {\Xi }_c^{(\prime )+}{\pi }^{+}$ in the quark model
• 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 extrapolation of the doubly charmed baryons magnetic properties
• Chiral Lagrangians for spin-$\frac{1}{2}$ and spin-$\frac{3}{2}$ doubly charmed baryons
• Strong Vertices of Doubly Heavy Spin-3/2 Baryons with Light Pseudoscalar Mesons
• Light cone QCD sum rules study of the rare radiative ${\Xi }_{bb}^{\ast }\to {\Xi }_b\gamma$ decay
• The effects of polarization on the observables in the decay ${\Xi }_{cc}^{++}\to {\Xi }_c^{+}\bar{\ell }{\nu }_{\ell }$
• Systematic exploration of triply heavy tetraquarks: spectroscopic and decay characteristics