Heavy-quark spin symmetry for charmed and strange baryon resonances

Abstract

We study charmed and strange baryon resonances that are generated dynamically by a unitary baryon-meson coupled-channels model which incorporates heavy-quark spin symmetry. This is accomplished by extending the SU(3) Weinberg-Tomozawa chiral Lagrangian to SU(8) spin-flavor symmetry plus a suitable symmetry breaking. The model generates resonances with negative parity from the s-wave interaction of pseudoscalar and vector mesons with 1/2+ and 3/2+ baryons in all the isospin, spin, and strange sectors with one, two, and three charm units. Some of our results can be identified with experimental data from several facilities, such as the CLEO, Belle, or BaBar Collaborations, as well as with other theoretical models, whereas others do not have a straightforward identification and require the compilation of more data and also a refinement of the model.

arXiv comment4 pages; proceedings of The XI International Conference on Hypernuclear and Strange Particle Physics (HYP2012), Barcelona, October 1-5, 2012

References in corpus (21)

• Heavy Quark Symmetry
• Prediction of narrow $N^{\ast }$ and ${\Lambda }^{\ast }$ resonances with hidden charm above 4 GeV
• Coupled-channel study of crypto-exotic baryons with charm
• D Mesons in Nuclear Matter: A DN Coupled-Channel Equations Approach
• ${\Lambda }_{c}N$ bound states revisited
• The s-wave charmed baryon resonances from a coupled-channel approach with heavy quark symmetry
• Charmed and strange baryon resonances with heavy-quark spin symmetry
• Light Vector Resonances in the Effective Chiral Lagrangian for Heavy Mesons
• DN interaction from meson exchange
• Properties of D-mesons in nuclear matter within a self-consistent coupled-channel approach
• Dynamically generated open charmed baryons beyond the zero range approximation
• On charm baryon resonances and chiral symmetry
• Dbar-N interaction from meson-exchange and quark-gluon dynamics
• Exotic dynamically generated baryons with negative charm quantum number
• Baryon resonances from chiral coupled-channel dynamics
• Coupling vector and pseudoscalar mesons to study baryon resonances
• D-wave baryon resonances with charm from coupled-channel dynamics
• Vector meson-Baryon dynamics and generation of resonances
• Possible ${\Lambda }_c{\Lambda }_c$ molecular bound state
• Charmed meson rescattering in the reaction pbar d to D Dbar N
• Negative parity $\Lambda$ and $\Sigma$ resonances coupled to pseudoscalar and vector mesons

Cited by in corpus (7)

• Baryon states with hidden charm in the extended local hidden gauge approach
• Baryon states with open beauty in the extended local hidden gauge approach
• Dynamically generated $J^P=1/2^{-}(3/2^{-})$ singly charmed and bottom heavy baryons
• Baryon states with open charm in the extended local hidden gauge approach
• Heavy Vector and Axial-Vector Mesons in Hot and Dense Asymmetric Strange Hadronic Matter
• Combined large-N_c and heavy-quark operator analysis for the chiral Lagrangian with charmed baryons
• Chiral dynamics of S-wave baryon resonances