The s-wave charmed baryon resonances from a coupled-channel approach with heavy quark symmetry

Abstract

We study charmed baryon resonances which are generated dynamically within a unitary meson-baryon coupled channel model that treats the heavy pseudoscalar and vector mesons on equal footing as required by heavy-quark symmetry. It is an extension of recent SU(4) models with t-channel vector meson exchanges to a SU(8) spin-flavor scheme, but differs considerably from the SU(4) approach in how the strong breaking of the flavor symmetry is implemented. Some of our dynamically generated states can be readily assigned to recently observed baryon resonances, while others do not have a straightforward identification and require the compilation of more data as well as an extension of the model to d-wave meson-baryon interactions and p-wave coupling in the neglected s- and u-channel diagrams. Of several novelties, we find that the Lambda_c(2595), which emerged as a ND quasi-bound state within the SU(4) approaches, becomes predominantly a ND* quasi-bound state in the present SU(8) scheme.

37 pages, 7 figures. Some parameters of the model have been changed, more channels are considered. To appear in PRD

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Cited by in corpus (40)

• DN interaction from meson exchange
• Hidden charm N and Delta resonances with heavy-quark symmetry
• Odd parity bottom-flavored baryon resonances
• Structure of charmed baryons studied by pionic decays
• Radiative decay of Lambdac(2940)+ in a hadronic molecule picture
• Interaction of vector mesons with baryons and nuclei
• Exotic dynamically generated baryons with negative charm quantum number
• Vector meson-Baryon dynamics and generation of resonances
• Charmed baryon Sigmac(2800) as a ND hadronic molecule
• Low-lying even parity meson resonances and spin-flavor symmetry
• Compositeness of S-wave weakly-bound states from next-to-leading order Weinberg's relations
• ${\Xi }_c$ and ${\Xi }_b$ excited states within a ${\mathrm{SU}(6)}_{\mathrm{lsf}}\times$HQSS model
• Scalar, axial-vector and tensor resonances from the rho D^*, omega D^* interaction in the hidden gauge formalism
• Role of the hadron molecule Lambda_c(2940) in the p bar(p) -> p D0 bar(Lambda)_c(2286) annihilation reaction
• Strong three-body decays of Lambdac(2940)+
• $P$-wave charmed baryons of the $SU(3)$ flavor $6_F$
• Open bottom states and the anti-B meson propagation in hadronic matter
• Strong Decays of observed ${\Lambda }_c$ Baryons in the ${}^3{P}_0$ Model
• Open charm meson in nuclear matter at finite temperature beyond the zero range approximation
• Kondo effect of ${\bar{D}}_s$ and ${\bar{D}}_s^{\ast }$ mesons in nuclear matter
• Systematic analysis of doubly charmed baryons ${\Xi }_{cc}$ and ${\Omega }_{cc}$
• Radiative decays of dynamically generated charmed baryons
• Charm and Bottom Hadrons in Hot Hadronic Matter
• Molecular ${\Omega }_{cc}$ , ${\Omega }_{bb}$ and ${\Omega }_{bc}$ states
• $D{\bar{D}}^{\ast }$ scattering and ${\chi }_{c1}(3872)$ in nuclear matter
• $ND$ and $NB$ systems in quark delocalization color screening model
• SU(4) flavor symmetry breaking in D-meson couplings to light hadrons
• Predicting exotic molecular states composed of nucleon and P-wave charmed meson
• SU(6)$\supset$SU(3)xSU(2) and SU(8)$\supset$SU(4)xSU(2) Clebsch-Gordan coefficients
• Study of $qqq\bar{q}Q$ pentaquark system in the Chiral Quark Model
• Is the ${\Lambda }_c(2625{)}^{+}$ the heavy quark spin symmetry partner of the ${\Lambda }_c(2595{)}^{+}$?
• Charge-conjugation asymmetry and molecular content: the $D_{s0}^{\ast }(2317{)}^{\pm }$ in matter
• Analysis of the vertexes ${\Omega }_Q^{\ast }{\Omega }_Q^{\ast }\varphi$, ${\Omega }_Q^{\ast }{\Xi }_Q^{\ast }{K}^{\ast }$, ${\Xi }_Q^{\ast }{\Sigma }_Q^{\ast }{K}^{\ast }$ and ${\Sigma }_Q^{\ast }{\Sigma }_Q^{\ast }\rho$ with the light-cone QCD sum rules
• Production of open-charm pentaquark molecules in decay $B^0\to {\bar{D}}^{0}p\bar{p}$
• Possibility of ${\Sigma }_c(2800)$ and ${\Lambda }_c(2940{)}^{+}$ as $S$-wave $D^{(\ast )}N$ molecular states
• Unveiling the Composition of the Single-Charm Molecular Pentaquarks: Insights from Radiative Decay and Magnetic Moment
• Investigating $Z_{cs}(3985)$ and $Z_{cs}(4000)$ exotic states in ${\Lambda }_b\to Z_{cs}^{-}p$ decays
• $N^{\ast }$ states with hidden charm and a three-body nature
• Heavy Mesons in Nuclear Matter and Nuclei
• Charmed excited baryons with heavy-quark spin symmetry