A unitary model for meson-nucleon scattering

Abstract

In an effective Lagrangian model employing the K-matrix approximation we extract nucleon resonance parameters. To this end we analyze simultaneously all available data for reactions involving the final states $\pi N$, $\pi \pi N$, $\eta N$ and $K\Lambda$ in the energy range $m_N+m_{\pi }\le \sqrt{s}\le 1.9$ GeV. The background contributions are generated consistently from the relevant Feynman amplitudes, thus significantly reducing the number of free parameters.

Revised version. 60 pages, 17 figures. Two figures and a short discussion (πN \to ηN, K Λamplitudes) added, typos and minor errors in the citations corrected

References in corpus (3)

• Current correlation functions, QCD sum rules and vector mesons in baryonic matter
• The Eta-Nucleon Scattering Length and Effective Range
• eta-meson photoproduction off protons and deuterons

Cited by in corpus (119)

• Baryon spectroscopy
• Chiral unitary approach to S-wave meson baryon scattering in the strangeness S=0 sector
• Dynamical coupled-channel model of meson production reactions in the nucleon resonance region
• Evidence for a missing nucleon resonance in kaon photoproduction
• Nucleon resonances within a dynamical coupled-channels model of pi N and gamma N reactions
• Photon- and meson-induced reactions on the nucleon
• Analytic properties of the scattering amplitude and resonances parameters in a meson exchange model
• Study of Non-Strange Baryon Resonances with Meson Photoproduction
• Baryon Resonance Extraction from piN Data using a Unitary Multichannel Model
• Vector meson production and nucleon resonance analysis in a coupled-channel approach for energies m_N < sqrt(s) < 2 GeV I: pion-induced results and hadronic parameters
• Gauge-invariant tree-level photoproduction amplitudes with form factors
• Vector meson production and nucleon resonance analysis in a coupled-channel approach for energies m_N < sqrt(s) < 2 GeV II: photon-induced results
• Decays of Baryon Resonances into K Lambda, K^+ Sigma^0 and K^0 Sigma^+
• Coupled-channel analysis of the $\omega$-meson production in $\pi N$ and $\gamma N$ reactions for c.m. energies up to 2 GeV
• A coupled-channel analysis of $K\Lambda$ production in the nucleon resonance region
• Cascade production from antikaon induced reactions on lambda and sigma
• Eta-meson production in the resonance energy region
• Dynamical Coupled-Channels Effects on Pion Photoproduction
• Quasifree Kaon Photoproduction on Nuclei
• The role of $N^{\ast }(1535)$ in $pp\to pp\varphi$ and ${\pi }^{-}p\to n\varphi$ reactions
• eta-Nucleon Scattering Length and Effective Range uncertainties
• The $\rho$ Spectral Function in a Relativistic Resonance Model
• Charmonium absorption by nucleons
• $pp\to p{K}^{+}\Lambda$ reaction in an effective Lagrangian model
• The role of the background in the extraction of resonance contributions from meson-baryon scattering
• Resonance Contributions to $\eta$ Photoproduction on Protons Found Using Dispersion Relations and an Isobar Model
• Compton scattering on the nucleon at intermediate energies and polarizabilities in a microscopic model
• Effective Lagrangian Approach to pion photoproduction from the nucleon
• The spectral function of the omega meson in nuclear matter from a coupled-channel resonance model
• Kaons and antikaons in asymmetric nuclear matter
• Role of baryonic resonances in the dilepton emission in nucleon-nucleon collisions
• Coupled-channels study of the ${\pi }^{-}p\to \eta n$ process
• Photoproduction of eta meson within a coupled-channels K-matrix approach
• Solution of the Bethe-Salpeter equation for pion-nucleon scattering
• Pion-nucleon interaction in a covariant hadron-exchange model
• Analysis of resonance multipoles from polarization observables in eta photoproduction
• Role of the ${\Lambda }_c^{+}(2940)$ in the ${\pi }^{-}p\to D^{-}{D}^{0}p$ reaction close to threshold
• Low-energy etaN interactions: scattering lengths and resonance parameters
• P-wave excited baryons from pion- and photo-induced hyperon production
• Spin-5/2 resonance contributions to the pion-induced reactions for energies $\sqrt{s}⩽$2.0 GeV
• Excitation of S11 resonances in pion scattering and pion photoproduction on the proton
• Effects of a $N^{\ast }$ resonance with hidden charm in the ${\pi }^{-}p\to D^{-}{\Sigma }_c^{+}$ reaction near threshold
• Study of π^{-}p \to ηn at low energies in a chiral constituent quark model
• Coupled-channel analysis of $K\Sigma$ production on the nucleon up to 2.0 GeV
• Production of $\omega$ and $\varphi$ Mesons in Near-Threshold $\pi N$ Reactions: Baryon Resonances and Validity of the OZI Rule
• $Z_c(3900)/Z_c(3885)$ as a virtual state from $\pi J/\psi -{\bar{D}}^{\ast }D$ interaction
• Dynamical coupled-channel model of kaon-hyperon interactions
• Inclusive $K^{+}$ and exclusive $K^{+}Y$ photoproduction on the deuteron: $\Lambda$- and $\Sigma$-threshold phenomena
• Is the nonmonotonic behavior in the cross section of phi photoproduction near threshold a signature of a resonance?
• Dilepton production in heavy-ion collisions with in-medium spectral functions of vector mesons
• The associated photoproduction of K+ meson off proton within a coupled-channels K-matrix approach
• The $K^{-}p\to \eta \Lambda$ reaction in an effective Lagrangian model
• Search for Quasi Bound $\eta$ Mesons
• Associated strangeness production in the pp to pK^+K^-p and pp to pK^+ pi^0 Sigma^0 reactions
• Production of a cascade hyperon in the K^- - proton interaction
• Eta-mesic nuclei: past, present, future
• Production of the superheavy baryon ${\Lambda }_{c\bar{c}}^{\ast }(4209)$ in kaon-induced reaction
• Role of N*(1650) in the near threshold pp --> p Lambda K+ and pp --> p Sigma0 K+ reactions
• The Reaction $pp\to pp\eta$ and the eta-Nucleon and Nucleon-Nucleon Interactions
• Evidence for a narrow $D_{03}$ state in $K^{-}p\to \eta \Lambda$ near threshold
• Proposal for Studying $N^{\ast }$ Resonances with $\bar{p}p\to \bar{p}n{\pi }^{+}$ Reaction
• Final state interactions in the eta-d system
• Dressing the nucleon in a dispersion approach
• ${\gamma }^{\ast }N\to N(1710)$ transition at high momentum transfer
• Eta meson production in nucleon-nucleon collisions within an effective Lagrangian model
• Study of nucleon resonances with electromagnetic interactions
• Nuclear Matter Spectral Functions by Transport Theory
• The reaction pi N to pi pi N in a meson-exchange approach
• Sign ambiguity in the K Sigma channel
• $2\pi$ production in the Giessen coupled-channel model
• $\eta$-meson in nuclear matter
• A relativistic two-nucleon model for $A(p,K^{+}){}_{\Lambda }B$ reaction
• Short-Range Correlations in Nuclear Matter at Finite Temperatures and High Densities
• Hyperon production in near threshold nucleon-nucleon collisions
• Pi N -> Omega N in a Coupled-Channel Approach
• $\eta$ production off the proton in a Regge-plus-chiral quark approach
• The $\varphi (2170)$ production in the process $\gamma p\to \eta \varphi p$
• ${\Lambda }_c^{+}(2940)$ photoproduction off the neutron
• Correlations of $\mathbf{\pi N}$ Partial Waves for Multi-Reaction Analyses
• The K-matrix approach to the Delta - resonance mass splitting and isospin violation in low-energy pi-N scattering
• Nucleon resonances in the $\gamma p\to \varphi K^{+}\Lambda$ reaction near threshold
• Kaon photoproduction on the nucleon: Contributions of kaon-hyperon final states to the magnetic moment of the nucleon
• Role of the $N^{\ast }(2080)$ in $pp\to p{K}^{+}\Lambda (1520)$ and ${\pi }^{-}p\to K^0\Lambda (1520)$ reactions
• Role of $Y(4630)$ in the $p\bar{p}\to {\Lambda }_c{\bar{\Lambda }}_c$ reaction near threshold
• Hypernuclear production by ($\gamma ,K^{+}$) reaction within a relativistic model
• Anti-Kaon Induced Reactions on the Nucleon
• Low-energy Compton scattering on the nucleon and sum rules
• On the sign of the pi-rho-omega coupling constant
• Near-threshold production of $a_0(980)$-mesons in $\pi N$ and NN collisions and $a_0/f_0$-mixing
• Implication of the observed $\psi (3770)\to p\bar{p}{\pi }^0$ for studying the $p\bar{p}\to \psi (3770){\pi }^0$ process
• A relativistic description of the A(pi+,K+)_ΛA reaction
• Evidence supporting the existence of $P_c(4380{)}^{\pm }$ from the recent measurements of $B_s\to J/\psi p\bar{p}$
• The energies and residues of the nucleon resonances N(1535) and N(1650)
• Role of the N*(1440) resonance in the pp->pnpi+ reaction
• The equivalence theorem and the Bethe-Salpeter equation
• Photoproduction of $a_2(1320)$ in a Regge model
• Combined analysis of the ${\pi }^{-}p\to K^0\Lambda$, $\eta n$ reactions in a chiral quark model
• Production of the charmoniumlike state $Y(4220)$ through the $p\bar{p}\to Y(4220){\pi }^0$ reaction
• Production of $a_0$-mesons in pp and pn reactions
• The production of neutral $N^{\ast }(11052)$ resonance with hidden beauty from ${\pi }^{-}p$ scattering
• Role of baryon resonances in the ${\pi }^{-}p\to n{e}^{+}{e}^{-}$ reaction within an effective-Lagrangian model
• Role of $\Lambda (1670)$ in the $\gamma p\to K^{+}\eta \Lambda$ reaction near threshold
• The Adler-Weisberger and Goldberger-Miyazawa-Oehme sum rules as probes of constraints from analyticity and chiral symmetry in dynamical models for pion-nucleon scattering
• Discovery potential for the neutral charmoniumlike $Z^0(4200)$ by $\bar{p}p$ annihilation
• 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
• Search for narrow resonances in $\pi p$ elastic scattering from the EPECUR experiment
• $J/\psi \to p\bar{p}\varphi$ decay in the isobar resonance model
• The nucleon resonances in the $J/\psi \to p\bar{p}{\eta }^{\prime }$ decay
• Near-threshold $\eta$ production in $pp$ collisions
• Compton scattering off proton in the third resonance region
• Spin asymmetry for the 16O(gamma,pi- p) reaction in the Delta(1232) region within an effective Lagrangian approach
• Low energy kaon photoproduction from nuclei
• Weak pion-production and the second resonance region
• Role of the low-lying nucleon resonances in the $p\bar{p}\to \psi \eta$ reaction
• Exclusive and semi-inclusive strangeness and charm production in $\pi N$ and $NN$ reactions
• Nuclear Reactions at Intermediate Energies
• Photoproduction of the Scalar Meson $f_0(500)$
• Neutrino-induced single pion production and the reanalyzed bubble chamber data
• A Simple Quark Model for γp -> K^+ Λ^0