Amplitude extraction in pseudoscalar-meson photoproduction: towards a situation of complete information

Abstract

A complete set for pseudoscalar-meson photoproduction is a minimum set of observables from which one can determine the underlying reaction amplitudes unambiguously. The complete sets considered in this work involve single- and double-polarization observables. It is argued that for extracting amplitudes from data, the transversity representation of the reaction amplitudes offers advantages over alternate representations. It is shown that with the available single-polarization data for the p(γ,K^+)Λreaction, the energy and angular dependence of the moduli of the normalized transversity amplitudes in the resonance region can be determined to a fair accuracy. Determining the relative phases of the amplitudes from double-polarization observables is far less evident.

arXiv commentAccepted in JPhysG; Focus issue "Enhancing the interaction between nuclear experiment and theory through information and statistics" (ISNET)

References in corpus (15)

• 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
• Completeness Rules for Spin Observables in Pseudoscalar Meson Photoproduction
• Determining pseudoscalar meson photo-production amplitudes from complete experiments
• Measurement of beam-recoil observables Ox, Oz and target asymmetry for the reaction gamma p -> K Lambda
• Bayesian inference of the resonance content of p(gamma,K^+)Lambda
• A Bayesian analysis of kaon photoproduction with the Regge-plus-resonance model
• Pion- and photo-induced transition amplitudes to $\Lambda K$, $\Sigma K$, and $N\eta$
• The complete experiment for photoproduction of pseudoscalar mesons in a truncated partial wave analysis
• Information Content of Polarization Measurements
• Amplitude ambiguities in pseudoscalar meson photoproduction
• Model dependence of single-energy fits to pion photoproduction data
• The incompleteness of complete pseudoscalar-meson photoproduction
• On Complete Sets of Polarization Observables
• Kaon photoproduction from the deuteron in a Regge-plus-resonance approach

Cited by in corpus (13)

• Eta photoproduction in a combined analysis of pion- and photon-induced reactions
• Light Baryon Spectroscopy
• The impact of ${\mathbf{K}}^{+}\mathbf{\Lambda }$ photoproduction on the resonance spectrum
• Light baryon resonances from a coupled-channel study including $\mathbf{K\Sigma }$ photoproduction
• Amplitude reconstruction from complete experiments and truncated partial-wave expansions
• Towards the Minimal Spectrum of Excited Baryons
• Model discrimination in pseudoscalar-meson photoproduction
• Moravcsik's theorem on complete sets of polarization observables reexamined
• Complete experiments in pseudoscalar meson photoproduction revisited
• The complete experiment problem of pseudoscalar meson photoproduction in a truncated partial wave analysis
• Analysis of the data on spin density matrix elements for $\gamma p\to K^{\ast +}\Lambda$
• Amplitude- and truncated partial-wave analyses combined: A novel, almost theory-independent single-channel method for extracting photoproduction multipoles directly from measured data
• New graphical criterion for the selection of complete sets of polarization observables and its application to single-meson photoproduction as well as electroproduction