Unified Chew-Mandelstam SAID analysis of pion photoproduction data

Abstract

A unified description of single-pion photoproduction data, together with pion- and eta-hadroproduction data, has been achieved in a Chew-Mandelstam parametrization which is consistent with unitarity at the two-body level. Energy-dependent and single-energy partial wave analyses of pion photoproduction data have been performed and compared to previous SAID fits and multipoles from the Mainz and Bonn-Gatchina groups.

11 pages, 9 figures, and 2 tables

References in corpus (3)

• Unitary Isobar Model - MAID2007
• Extended Partial-Wave Analysis of piN Scattering Data
• Updated SAID analysis of pion photoproduction data

Cited by in corpus (65)

• Baryons as relativistic three-quark bound states
• 50 Years of Quantum Chromodynamics
• Eta photoproduction in a combined analysis of pion- and photon-induced reactions
• Photocouplings at the Pole from Pion Photoproduction
• High statistics study of the reaction $\gamma p\to p2{\pi }^0$
• Isospin decomposition of $\gamma N\to N^{\ast }$ transitions within a dynamical coupled-channels model
• Quasifree photoproduction of $\eta$ mesons off protons and neutrons
• Light Baryon Spectroscopy
• Pion photoproduction off the proton in a gauge-invariant chiral unitary framework
• Study of $\eta$ and ${\eta }^{\prime }$ photoproduction at MAMI
• First measurement of the helicity asymmetry for $\gamma p\to p{\pi }^0$ in the resonance region
• The impact of ${\mathbf{K}}^{+}\mathbf{\Lambda }$ photoproduction on the resonance spectrum
• Measurement of pi^0 photoproduction on the proton at MAMI C
• Beam asymmetry for pi+ and pi0 photoproduction on the proton for photon energies from 1.102 to 1.862 GeV
• Helicity amplitudes for photoexcitation of nucleon resonances off neutrons
• Model Selection for Pion Photoproduction
• Jülich-Bonn-Washington Model for Pion Electroproduction Multipoles
• First Measurement of the Polarization Observable E in the $\vec{p}(\vec{\gamma },{\pi }^{+})n$ Reaction up to 2.25 GeV
• Mixing of pseudoscalar-baryon and vector-baryon in the $J^P=1/2^{-}$ sector and the $N^{\ast }$(1535) and $N^{\ast }$(1650) resonances
• Photo- and Electrocouplings of Nucleon Resonances
• Updated determination of $N^{\ast }$ resonance parameters using a unitary, multichannel formalism
• Finite volume effects and quark mass dependence of the N(1535) and N(1650)
• The N(1520) 3/2- helicity amplitudes from an energy-independent multipole analysis based on new polarization data on photoproduction of neutral pions
• The polarization observables T, P, and H and their impact on $\gamma p\to p{\pi }^0$ multipoles
• Evaluation of the forward Compton scattering off protons: I. Spin-independent amplitude
• $\Delta$(1232) Dalitz decay in proton-proton collisions at T=1.25 GeV measured with HADES
• Baryon photo-decay amplitudes at the pole
• Photoproduction of pi0-mesons off neutrons in the nucleon resonance region
• Cross Section for $\gamma n\to {\pi }^{0}n$ measured at Mainz/A2
• Measurement of the ${}^{1}H$($\vec{\gamma }$, $\vec{p}$)${\pi }^0$ reaction using a novel nucleon spin polarimeter
• Differential Cross Section Measurements for $\gamma n\to {\pi }^{-}p$ Above the First Nucleon Resonance Region
• First measurement of the polarization observable $E$ and helicity-dependent cross sections in single ${\pi }^0$ photoproduction from quasi-free nucleons
• Towards the Minimal Spectrum of Excited Baryons
• Role of the $N^{\ast }(1535)$ in the ${\Lambda }_c^{+}\to {\bar{K}}^0\eta p$ decay
• Coupled-channel analysis of pion- and eta-electroproduction with the Jülich-Bonn-Washington model
• Double-polarization observable G in neutral-pion photoproduction off the proton
• Coupled $K^{+}\Lambda$ and $K^0\Lambda$ photoproduction off the nucleon: Consequences from the recent CLAS and MAMI data and the $N(1680)P_{11}$ narrow state
• Neutral pion photoproduction on the nucleon in a chiral quark model
• Pentaquark components in low-lying baryon resonances
• Strange Hadron Spectroscopy with Secondary KL Beam in Hall D
• Evaluation of the forward Compton scattering off protons: II. Spin-dependent amplitude and observables
• Cottingham formula and nucleon polarizabilities
• Global analysis of charge exchange meson production at high energies
• Photoproduction of {\boldmath{${\pi }^0$}} Mesons off Protons and Neutrons in the Second and Third Nucleon Resonance Region
• Structure of Pion Photoproduction Amplitudes
• Constraints on the virtual Compton scattering on the nucleon in a new dispersive formalism
• A case in favor of the $N^{\ast }(1700)(3/2^{-})$
• Pion Photoproduction off Nucleon with Hamiltonian Effective Field Theory
• Pion photoproduction of nucleon excited states with Hamiltonian effective field theory
• Dispersive Analysis of Low Energy $\gamma N\to \pi N$ Process and Studies on the $N^{\ast }(890)$ Resonance
• Radiative pion photoproduction in covariant chiral perturbation theory
• Measurement of the nucleon spin structure functions for 0.01<$Q^2$<1 GeV${}^2$ using CLAS
• Discrete ambiguities in a partial-wave analysis of pseudoscalar photoproduction with truncation in total angular momentum
• Single ${\pi }^0$ Production Off Neutrons Bound in Deuteron with Linearly Polarized Photons
• SAID Analysis of Meson Photoproduction : Determination of Neutron and Proton EM Couplings
• Helicity Asymmetry Measurement for ${\pi }^0$ Photoproduction on the CLAS Frozen Spin Target
• Dyson-Schwinger approach to pion-nucleon scattering using time-ordered perturbation theory
• The neutron anomaly in the gamma N --> eta N cross section through the looking glass of the flavour SU(3) symmetry
• Nuclear coherent ${\pi }^0$ photoproduction with charge-exchange and spin-flip rescattering
• Baryon spectroscopy with polarization observables from CLAS
• Baryon Spectroscopy - Recent Results from the CBELSA/TAPS Experiment
• Single Pion Production off Free Nucleons: Analysis of Photon, Electron, Pion and Neutrino Induced Processes
• New high-statistics measurement of the ${\pi }^0\to e^{+}{e}^{-}\gamma$ Dalitz decay at the Mainz Microtron
• Double polarisation experiments in meson photoproduction
• Resonance Extraction from the SAID Analysis