Low-energy etaN interactions: scattering lengths and resonance parameters

Abstract

We consider the impact of two recent pi- p-->eta n measurements on the etaN scattering length and etaN branching fractions for the N(1535) and N(1520) resonances within a coupled-channel analysis of piN elastic scattering and etaN production data. The sensitivity of these results to model input is also explored.

arXiv comment11 pages, 5 figures

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Cited by in corpus (30)

• Extended Partial-Wave Analysis of piN Scattering Data
• Baryon spectroscopy
• Coupled-channel dynamics in the reactions piN --> piN, etaN, KLambda, KSigma
• Study of the gp-->etap reaction with the Crystal Ball detector at the Mainz Microtron(MAMI-C)
• Eta photoproduction in a combined analysis of pion- and photon-induced reactions
• Coherent photoproduction of eta-mesons off 3He - search for eta-mesic nuclei
• Etaprime and Eta Mesons with Connection to Anomalous Glue
• Eta-nuclear bound states revisited
• Determination of the eta'-proton scattering length in free space
• Pion photoproduction off the proton in a gauge-invariant chiral unitary framework
• Interaction of eta mesons with nuclei
• Photoproduction of mesons off nuclei
• Coupled-channels study of the ${\pi }^{-}p\to \eta n$ process
• Meson-baryon scattering lengths in HB$\chi$PT
• Study of π^{-}p \to ηn at low energies in a chiral constituent quark model
• In-medium Eta-Nucleon interactions and Eta nuclear bound states
• Determination of the real part of the η'-Nb optical potential
• Chiral unitary approach to η' N scattering at low energies
• Strong decay of low-lying $S_{11}$ and $D_{13}$ nucleon resonances to pseudoscalar mesons and octet baryons
• Search for Quasi Bound $\eta$ Mesons
• Eta-mesic nuclei: past, present, future
• Chirally motivated separable potential model for $\eta N$ amplitudes
• Study of nucleon resonances with electromagnetic interactions
• Decuplet contribution to the meson-baryon scattering lengths
• $\eta$-meson in nuclear matter
• Coherent π0η photoproduction on s-shell nuclei
• Eta-mesic nuclei in relativistic mean-field theory
• Combined analysis of the ${\pi }^{-}p\to K^0\Lambda$, $\eta n$ reactions in a chiral quark model
• $\eta$ mesons in hot and dense asymmetric nuclear matter
• Results from the Analysis of Crystal Ball Meson Production Measurements at BNL