Exotic hadrons in s-wave chiral dynamics

Abstract

We study s-wave scattering of a hadron and a Nambu-Goldstone boson induced by the model-independent low energy interaction in the flavor SU(3) symmetric limit. Establishing the general structure of the low energy interaction based on group theoretical arguments, we find that the interaction in the exotic channels are in most cases repulsive, and that for possible attractive channels the interaction strengths are weak and uniquely given independent of channel. Solving the scattering problem with this interaction, we show that the attraction in the exotic channels is not strong enough to generate a bound state from the physically known target hadrons. We also find that there are no attractive interaction in the exotic channels in large Nc limit.

RevTeX4, 4 pages, 1 figure, 2 tables, typos corrected

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Cited by in corpus (24)

• The nature of the Lambda(1405) resonance in chiral dynamics
• Origin of resonances in the chiral unitary approach
• Compositeness of dynamically generated states in a chiral unitary approach
• Heavy Hadrons in Nuclear Matter
• Exotic nuclei with open heavy flavor mesons
• Heavy quark symmetry in multi-hadron systems
• QCD and the Strange Baryon Spectrum
• Internal structure of resonant Lambda(1405) state in chiral dynamics
• Study of exotic hadrons in S-wave scatterings induced by chiral interaction in the flavor symmetric limit
• On the nature of the $\Lambda (1405)$ and $\Lambda (1670)$ from their $N_c$ behavior in chiral dynamics
• Scalar, axial-vector and tensor resonances from the rho D^*, omega D^* interaction in the hidden gauge formalism
• Theoretical study of the $KK\bar{K}$ system and dynamical generation of the K(1460) resonance
• Structure of the Lambda(1405) baryon resonance from its large Nc behavior
• Nature of the sigma meson as revealed by its softening process
• Determination of the pi Sigma scattering lengths from the weak decays of Lambda_c
• Pole position of $\Lambda (1405)$ measured in $d(K^{-},n)\pi \Sigma$ reactions
• Further signatures to support the tetraquark mixing framework for the two light-meson nonets
• Three-Body $J^P=0^{+},1^{+},2^{+}$ $B^{\ast }{B}^{\ast }\bar{K}$ Bound States
• Recent developments in antikaon-nucleon dynamics
• KN scattering amplitude revisited in a chiral unitary approach and a possible broad resonance in S=+1 channel
• $K^{+}$-nucleus elastic scattering revisited from perspective of partial restoration of chiral symmetry
• Photo- and Electron-Production of Mesons on Nucleons and Nuclei
• Octonionic Strong and Weak Interactions and Their Quantum Equations
• Chiral dynamics and baryon resonances