The reaction pi+ p --> K+ Sigma+ in a unitary coupled-channels model

Abstract

Elastic pi N scattering and the reaction pi+ p --> K+ Sigma+ are described simultaneously in a unitary coupled-channels approach which respects analyticity. SU(3) flavor symmetry is used to relate the t- and u-channel exchanges that drive the meson-baryon interaction in the different channels. Angular distributions, polarizations, and spin-rotation parameters are compared with available experimental data. The pole structure of the amplitudes is extracted from the analytic continuation.

arXiv comment43 pages, 15 figures, Version accepted for publication in Nuclear Physics A

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Cited by in corpus (53)

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• Nucleon resonances within a dynamical coupled-channels model of pi N and gamma N reactions
• Sigma_c Dbar and Lambda_c Dbar states in a chiral quark model
• Coupled-channel dynamics in the reactions piN --> piN, etaN, KLambda, KSigma
• Scalar mesons moving in a finite volume and the role of partial wave mixing
• Nucleon and $\Delta$ elastic and transition form factors
• Nucleon and Roper electromagnetic elastic and transition form factors
• Spectrum of hadrons with strangeness
• Eta photoproduction in a combined analysis of pion- and photon-induced reactions
• Photocouplings at the Pole from Pion Photoproduction
• Finite volume effects in pion-kaon scattering and reconstruction of the kappa(800) resonance
• Pion photoproduction in a dynamical coupled-channels model
• Dynamical coupled-channel approaches on a momentum lattice
• Decay behaviors of Pc hadronic molecules
• Light Baryon Spectroscopy
• The impact of ${\mathbf{K}}^{+}\mathbf{\Lambda }$ photoproduction on the resonance spectrum
• Selected strong decays of $\eta (2225)$ and $\varphi (2170)$ as $\Lambda \bar{\Lambda }$ bound states
• Relevance of complex branch points for partial wave analysis
• Role of vector and pseudoscalar mesons in understanding $1/2^{-}$ $N^{\ast }$ and $\Delta$ resonances
• Pion- and photo-induced transition amplitudes to $\Lambda K$, $\Sigma K$, and $N\eta$
• P-wave excited baryons from pion- and photo-induced hyperon production
• Light baryon resonances from a coupled-channel study including $\mathbf{K\Sigma }$ photoproduction
• Effects of a $N^{\ast }$ resonance with hidden charm in the ${\pi }^{-}p\to D^{-}{\Sigma }_c^{+}$ reaction near threshold
• Pole position of the $a_1(1260)$ resonance in a three-body unitary framework
• Jülich-Bonn-Washington Model for Pion Electroproduction Multipoles
• The internal structures of the nucleon resonances $N(1875)$ and $N(2120)$
• Coupled-channel analysis of $K\Sigma$ production on the nucleon up to 2.0 GeV
• Exploratory study of possible resonances in the heavy meson - heavy baryon coupled-channel interactions
• Three-body dynamics of the $a_1(1260)$ resonance from lattice QCD
• Finite volume effects and quark mass dependence of the N(1535) and N(1650)
• Decay behavior of the strange and beauty partners of $P_c$ hadronic molecules
• Role of the possible ${\Sigma }^{\ast }({\frac{1}{2}}^{-})$ state in the $\Lambda p\to \Lambda p{\pi }^0$ reaction
• Separated Structure Functions for Exclusive $K^{+}\Lambda$ and $K^{+}{\Sigma }^0$ Electroproduction at 5.5 GeV with CLAS
• Anticharmed strange pentaquarks from the one-boson-exchange model
• Sign ambiguity in the K Sigma channel
• Role of the ${\Delta }^{\ast }(1940)$ in the ${\pi }^{+}p\to K^{+}{\Sigma }^{+}(1385)$ and $pp\to n{K}^{+}{\Sigma }^{+}(1385)$ reactions
• Correlations of $\mathbf{\pi N}$ Partial Waves for Multi-Reaction Analyses
• Induced polarization of Λ(1116) in kaon electroproduction
• The reaction $\pi N\to \omega N$ in a dynamical coupled-channel approach
• The $K^{-}p\to f_1(1285)\Lambda$ reaction within an effective Lagrangian approach
• Decays of Pentaquarks in Hadrocharmonium and Molecular Pictures
• Nucleon resonances in the ${\pi }^{-}p\to K^0\Lambda$ reaction near threshold
• Electromagnetic form factors of ${\Sigma }^{+}$ and ${\Sigma }^{-}$ in the vector meson dominance model
• Reexamination of the role of the ${\Delta }^{\ast }$ resonances in the $pp\to n{K}^{+}{\Sigma }^{+}$ reaction
• 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
• The nucleon resonances in the $J/\psi \to p\bar{p}{\eta }^{\prime }$ decay
• First Measurement of ${\Xi }^{-}$ Polarization in Photoproduction
• Testing the origin of the "$f_1(1420)$" with the $\bar{K}p\to \Lambda (\Sigma )K\bar{K}\pi$ reaction
• Analysis of ${\Sigma }^{\ast }$ via isospin selective reaction $K_{L}p\to {\pi }^{+}{\Sigma }^0$
• Complex phase structure of the meson-baryon $T$-matrix
• Coupled-channel contributions to the GDH sum rule from the Jülich-Bonn approach
• Role of the $\Lambda (1600)$ in the $K^{-}p\to \Lambda {\pi }^0{\pi }^0$ reaction
• On eta photoproduction on the neutron and pi^0 eta photoproduction