Origin of resonances in the chiral unitary approach

Abstract

We study the origin of the resonances associated with pole singularities of the scattering amplitude in the chiral unitary approach. We propose a "natural renormalization" scheme using the low-energy interaction and the general principle of the scattering theory. We develop a method to distinguish dynamically generated resonances from genuine quark states [Castillejo-Dalitz-Dyson (CDD) poles] using the natural renormalization scheme and phenomenological fitting. Analyzing physical meson-baryon scatterings, we find that the Lambda(1405) resonance is largely dominated by the meson-baryon molecule component. In contrast, the N(1535) resonance requires a sizable CDD pole contribution, while the effect of the meson-baryon dynamics is also important.

arXiv commentRevTeX4, 14 pages, 4 figures, 4 tables, title changed by editors, final version to appear in Phys. Rev. C

References in corpus (48)

• Chiral Dynamics in Nucleons and Nuclei
• Chiral dynamics in the presence of bound states: kaon-nucleon interactions revisited
• Non perturbative chiral approach to s-wave \bar{K}N interactions
• Chiral Symmetry Amplitudes in the S-Wave Isoscalar and Isovector Channels and the σ, f_0(980), a_0(980) Scalar Mesons
• Chiral symmetry amplitudes in the s-wave isoscalar and isovector channels and the $\sigma ,f_0(980),a_0(980)$ scalar mesons
• Chiral Dynamics of the Two Λ(1405) States
• Chiral Dynamics and the Low Energy Kaon-Nucleon Interaction
• Chiral perturbation theory
• Meson-Meson interaction in a non-perturbative chiral approach
• N/D Description of Two Meson Amplitudes and Chiral Symmetry
• Evidence that the a0(980) and f0(980) are not elementary particles
• Chiral Perturbation Theory
• Relativistic chiral SU(3) symmetry, large N_c sum rules and meson-baryon scattering
• Non-perturbative Approach to effective chiral Lagrangians and Meson Interactions
• On heavy-light meson resonances and chiral symmetry
• Dynamically Generated Open and Hidden Charm Meson Systems
• Dynamically generated 0^+ heavy mesons in a heavy chiral unitary approach
• The inverse amplitude method in Chiral Perturbation Theory
• On the nature of light scalar mesons from their large $N_c$ behavior
• Meson-exchange Model for $\pi N$ scattering and $\gamma N->\pi N$ reaction
• Chiral unitary approach to S-wave meson baryon scattering in the strangeness S=0 sector
• Low lying axial-vector mesons as dynamically generated resonances
• Low lying S=-1 excited baryons and chiral symmetry
• Effective Kbar N interaction based on chiral SU(3) dynamics
• On meson resonances and chiral symmetry
• Quark mass dependence of s-wave baryon resonances
• On baryon resonances and chiral symmetry
• Flavor SU(3) breaking effects in the chiral unitary model for meson-baryon scatterings
• Chiral Symmetry of Baryons
• Baryonic Resonances from Baryon Decuplet-Meson Octet Interaction
• On the Strangeness -1 S-wave Meson-Baryon Scattering
• Chiral unitary meson-baryon dynamics in the presence of resonances: Elastic pion-nucleon scattering
• Surprises in threshold antikaon-nucleon physics
• Chiral Symmetry Realization for Even- and Odd-parity Baryon Resonances
• Chiral Symmetry for Positive and Negative Parity Nucleons
• Detailed Analysis of the Chiral Unitary Model for Meson-Baryon Scattering with Flavor SU(3) Breaking Effects
• Another look at $\pi \pi$ scattering in the scalar channel
• Transition form factors of the N*(1535) as a dynamically generated resonance
• Chiral dynamics of p-wave in K^- p and coupled states
• Study of exotic hadrons in S-wave scatterings induced by chiral interaction in the flavor symmetric limit
• Chiral Dynamics of the low-energy Kaon-Baryon interactions
• Structure of the Lambda(1405) baryon resonance from its large Nc behavior
• Exotic hadrons in s-wave chiral dynamics
• The Role of Lambda(1405) in Kaon-Proton Interactions
• Property of σ(600) and Chiral Symmetry
• How and when can one identify hadronic molecules in the baryon spectrum
• Chiral Dynamics of Low-Energy Kaon-Baryon Interactions with Explicit Resonance
• Study of exotic hadrons in s-wave chiral dynamics

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