The piN --> etaN data demand the existence of N(1710) P11 resonance reducing the 1700 MeV continuum ambiguity

Abstract

In spite of prolonged polemics, the agreement on the existence of N(1710) P11 resonance has not until now been reached, and the Particle Data Group declares it as a 3-star resonance only. We show that the proper inclusion of inelastic channels in the coupled-channel formalism indisputably demands the existence of N(1710) P11 state, and that it presumably stays "hidden" within the continuum ambiguity of any typical single channel partial wave analyses. Consequently, its Particle Data Group confidence rating should be raised to a 4-star resonance.

arXiv comment4 pages, 3 figures

References in corpus (6)

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Cited by in corpus (25)

• Baryon spectroscopy
• Nucleon resonances within a dynamical coupled-channels model of pi N and gamma N reactions
• Coupled-channel dynamics in the reactions piN --> piN, etaN, KLambda, KSigma
• Eta photoproduction in a combined analysis of pion- and photon-induced reactions
• Eta-meson production in the resonance energy region
• The $N^{\ast }(1710)$ as a resonance in the $\pi \pi N$ system
• Photocouplings at the Pole from Pion Photoproduction
• Dynamical coupled-channels model of $K^{-}p$ reactions (I): Determination of partial-wave amplitudes
• Extraction of P11 resonances from pi N data
• Coupled-channels study of the ${\pi }^{-}p\to \eta n$ process
• Relevance of complex branch points for partial wave analysis
• P-wave excited baryons from pion- and photo-induced hyperon production
• Study of π^{-}p \to ηn at low energies in a chiral constituent quark model
• The physical meaning of scattering matrix singularities in coupled-channel formalisms
• ${\gamma }^{\ast }N\to N(1710)$ transition at high momentum transfer
• Roper resonances in chiral quark models
• $\eta$ production off the proton in a Regge-plus-chiral quark approach
• Analysis of recent eta photoproduction data
• Nucleon resonances in the ${\pi }^{-}p\to K^0\Lambda$ reaction near threshold
• Few Body Reserch - Summary
• Poles, the only true resonant-state signals, are extracted from a worldwide collection of partial wave amplitudes using only one, well controlled pole-extraction method
• Quark model study of the $\pi N\to \pi N$ reactions up to the $N(1440)$ resonance region
• Stability of the Zagreb Carnegie-Mellon-Berkeley model
• Chiral quark model approach for the study of baryon resonances
• Is the pole content of each single-energy, single-channel partial wave analysis inherently model dependent?