New spectrum of negative-parity doubly charmed baryons: Possibility of two quasistable states

Abstract

The discovery of ${\Xi }_{cc}^{++}$ by the LHCb Collaboration triggers predictions of more doubly charmed baryons. By taking into account both the $P$-wave excitations between the two charm quarks and the scattering of light pseudoscalar mesons off the ground state doubly charmed baryons, a set of negative-parity spin-1/2 doubly charmed baryons are predicted already from a unitarized version of leading order chiral perturbation theory. Moreover, employing heavy antiquark-diquark symmetry the relevant low-energy constants in the next-to-leading order are connected with those describing light pseudoscalar mesons scattering off charmed mesons, which have been well determined from lattice calculations and experimental data. Our calculations result in a spectrum richer than that of heavy mesons. We find two very narrow $J^P=1/2^{-}$ ${\Omega }_{cc}^P$, which very likely decay into ${\Omega }_{cc}{\pi }^0$ breaking isospin symmetry. In the isospin-1/2 ${\Xi }_{cc}^P$ sector, three states are predicted to exist below 4.2~GeV with the lowest one being narrow and the other two rather broad. We suggest to search for the ${\Xi }_{cc}^P$ states in the ${\Xi }_{cc}^{++}{\pi }^{-}$ mode. Searching for them and their analogues are helpful to establish the hadron spectrum.

arXiv comment6 pages, 3 figures; accepted for publication as a Rapid Communication in Physical Review D

References in corpus (61)

• Hadronic molecules
• Chiral dynamics in the presence of bound states: kaon-nucleon interactions revisited
• Observation of a Narrow Meson Decaying to Ds+pi0 at a Mass of 2.32 GeV/c^2
• Meson-Meson interaction in a non-perturbative chiral approach
• N/D Description of Two Meson Amplitudes and Chiral Symmetry
• Observation of the doubly charmed baryon ${\Xi }_{cc}^{++}$
• Observation of a Narrow Resonance of Mass 2.46 GeV/c^2 Decaying to D_s^*+ pi^0 and Confirmation of the D_sJ^* (2317) State
• Ab initio calculation of the neutron-proton mass difference
• Evidence that the a0(980) and f0(980) are not elementary particles
• A review of the open charm and open bottom systems
• Implications of a DK Molecule at 2.32 GeV
• Non-perturbative Approach to effective chiral Lagrangians and Meson Interactions
• On heavy-light meson resonances and chiral symmetry
• Discovery of doubly-charmed Xi_{cc} baryon implies a stable (b b ubar dbar) tetraquark
• Couplings in coupled channels versus wave functions: application to the X(3872) resonance
• Observed D_s(2317) and tentative D(2100-2300) as the charmed cousins of the light scalar nonet
• Heavy-quark symmetry implies stable heavy tetraquark mesons $Q_i{Q}_j{\bar{q}}_k{\bar{q}}_l$
• Mass spectra of doubly heavy baryons in the relativistic quark model
• Dynamically generated 0^+ heavy mesons in a heavy chiral unitary approach
• Chiral Unitary approach to meson-meson and meson-baryon interactions and nuclear applications
• Study of B- => D**0 pi-(D**0 => D(*)+ pi-) decays
• Interactions of Charmed Mesons with Light Pseudoscalar Mesons from Lattice QCD and Implications on the Nature of the D_{s0}^*(2317)
• Strong and radiative decays of the Ds0*(2317) meson in the DK-molecule picture
• $D_{s0}^{\ast }(2317)$ Meson and $D$-Meson-Kaon Scattering from Lattice QCD
• Baryons with two heavy quarks
• Dynamically generated 1^+ heavy mesons
• $D_s$ mesons with $DK$ and $D^{\ast }K$ scattering near threshold
• Effective Field Theory Lagrangians for Baryons with Two and Three Heavy Quarks
• Interactions between heavy mesons and Goldstone bosons from chiral dynamics
• Open-charm meson resonances with negative strangeness
• Quark mass dependence of the rho and sigma from dispersion relations and Chiral Perturbation Theory
• Chiral Lagrangian with Heavy Quark-Diquark Symmetry
• Coupled-Channel $D\pi$, $D\eta$ and $D_s\bar{K}$ Scattering from Lattice QCD
• A Comprehensive Four-Quark Interpretation of D_s(2317), D_s(2457) and D_s(2632)
• Two-pole structure of the $D_0^{\ast }(2400)$
• Radiative and isospin-violating decays of Ds mesons in the hadrogenesis conjecture
• Structure and compositeness of hadron resonances
• Scattering lengths of Nambu-Goldstone bosons off $D$ mesons and dynamically generated heavy-light mesons
• Amplitude analysis of $B^{-}\to D^{+}{\pi }^{-}{\pi }^{-}$ decays
• Predicting positive parity $B_s$ mesons from lattice QCD
• Masses and decay constants of the $D_{s0}^{\ast }(2317)$ and $D_{s1}(2460)$ from $N_f=2$ lattice QCD close to the physical point
• Doubly Heavy Baryons, Heavy Quark-DiQuark Symmetry and NRQCD
• Subleading contributions to the width of the D_{s0}*(2317)
• Implications of Heavy Quark-Diquark Symmetry for Excited Doubly Heavy Baryons and Tetraquarks
• Light meson mass dependence of the positive parity heavy-strange mesons
• New insights into the $D_{s0}^{\ast }(2317)$ and other charm scalar mesons
• Strong and radiative decays of the $D_{s0}^{\ast }(2317)$ and $D_{s1}(2460)$
• On chiral extrapolations of charmed meson masses and coupled-channel reaction dynamics
• More kaonic bound states and a comprehensive interpretation of the D_{sJ} states
• Light Pseudoscalar Meson and Heavy Meson Scattering Lengths
• Contribution of constituent quark model $c\bar{s}$ states to the dynamics of the $D_{s0}^{\ast }(2317)$ and $D_{s1}(2460)$ resonances
• Isospin splittings of doubly heavy baryons
• Prediction of exotic doubly charmed baryons within chiral effective field theory
• Study of open-charm $0^{+}$ states in unitarized chiral effective theory with one-loop potentials
• Doubly heavy hadrons and the domain of validity of doubly heavy diquark--anti-quark symmetry
• The masses and axial currents of the doubly charmed baryons
• Masses and sigma terms of doubly charmed baryons up to $\mathcal{O}(p^4)$ in manifestly Lorentz-invariant baryon chiral perturbation theory
• Masses of doubly charmed baryons in the extended on-mass-shell renormalization scheme
• Chiral partner structure of doubly heavy baryons with heavy quark spin-flavor symmetry
• Degeneracy of doubly heavy baryons from heavy quark symmetry
• Heavy-to-light scalar form factors from Muskhelishvili-Omnès dispersion relations

Cited by in corpus (19)

• Chiral perturbation theory for heavy hadrons and chiral effective field theory for heavy hadronic molecules
• A survey of heavy-heavy hadronic molecules
• A Review on Partial-wave Dynamics with Chiral Effective Field Theory and Dispersion Relation
• Towards a Heavy Diquark Effective Theory for Weak Decays of Doubly Heavy Baryons
• Light pseudoscalar meson and doubly charmed baryon scattering lengths with heavy diquark-antiquark symmetry
• Molecular ${\Omega }_{cc}$ , ${\Omega }_{bb}$ and ${\Omega }_{bc}$ states
• Possibility of $T_{c\bar{s}}(2900)$ as the resonance-like structure induced by threshold effects
• Strong Coupling Constants of the Doubly Heavy ${\Xi }_{QQ}$ Baryons with $\pi$ Meson
• Quadruply charmed baryons as heavy quark symmetry partners of the $D_{s0}^{\ast }(2317)$
• Chiral effective Lagrangian for doubly charmed baryons up to $\mathcal{O}(q^4)$
• Strong decays of the low-lying doubly bottom baryons
• Prediction of five-flavored pentaquarks
• The ${\Omega }_{cc}$ resonances with negative parity in the chiral constituent quark model
• Strong Coupling Constants of the Doubly Heavy Spin-1/2 Baryons with Light Pseudoscalar Mesons
• Doubly-charmed pentaquark states in a mass splitting model
• Chiral Lagrangians for spin-$\frac{1}{2}$ and spin-$\frac{3}{2}$ doubly charmed baryons
• Meson exchange between initial and final state and the $R_D$ ratio in the $\bar{B}\to D\bar{\nu }\ell ({\bar{\nu }}_{\tau }\tau )$ reactions
• Decoding the near-threshold $X_{0,1}(4140)$ and $X_1(4685)$ states via OZI-suppressed coupled-channel scattering
• Light cone QCD sum rules study of the rare radiative ${\Xi }_{bb}^{\ast }\to {\Xi }_b\gamma$ decay