Photoproduction Reactions and Non-Strange Baryon Spectroscopy

Abstract

We review the last two decades of using photon beams to measure the production of mesons, and in particular the information that can be obtained on the spectrum of light, non-strange baryons. This is a compendium of experimental results, which should be used as a complement to theoretical reviews of the subject. Lists of data sets are given, together with a comprehensive set of references. An indication of the impact of the data is presented with a summary of the results.

arXiv commentSubmitted to Progress in Particle and Nuclear Physics

References in corpus (117)

• The high-precision, charge-dependent Bonn nucleon-nucleon potential (CD-Bonn)
• Extended Partial-Wave Analysis of piN Scattering Data
• Baryon spectroscopy
• Differential Cross Sections for gamma + p --> K+ + Y for Lambda and Sigma0 Hyperons
• Progress Toward Understanding Baryon Resonances
• Measurement of gamma p --> K+ Lambda and gamma p --> K+ Sigma0 at photon energies up to 2.6 GeV
• Updated analysis of NN elastic scattering to 3 GeV
• Strange Decays of Nonstrange Baryons
• Hyperon Photoproduction in the Nucleon Resonance Region
• Completeness Rules for Spin Observables in Pseudoscalar Meson Photoproduction
• The gamma + p to K+ + Lambda and gamma + p to K+ + Sigma0 reactions at forward angles with photon energies from 1.5 to 2.4 GeV
• Study of Non-Strange Baryon Resonances with Meson Photoproduction
• Differential cross section and recoil polarization measurements for the gamma p to K+ Lambda reaction using CLAS at Jefferson Lab
• First Measurement of Beam-Recoil Observables Cx and Cz in Hyperon Photoproduction
• Photoproduction of eta mesons off protons for photon energies from 0.75 GeV to 3 GeV
• Upgrade of the Glasgow photon tagging spectrometer for Mainz MAMI-C
• Determination of the E2/M1 Ratio in the γN \to Δ(1232) Transition from a Simultaneous Measurement of p(\vecγ,p)π^0 and p(\vecγ,π^+)n
• Study of the gp-->etap reaction with the Crystal Ball detector at the Mainz Microtron(MAMI-C)
• Beam polarization asymmetries for the p(gamma,K+)Lambda and p(gamma,K+)Sigma0 reactions at Egamma=1.5-2.4 GeV
• Photoproduction of $\eta$ and $\eta \prime$ Mesons off Protons
• New results on the Roper resonance and the P_{11} partial wave
• ${\pi }^{+}$ photoproduction on the proton for photon energies from 0.725 to 2.875 GeV
• Differential cross sections for the reactions gamma p-> p eta and gamma p -> p eta-prime
• Measurement of eta photoproduction on the proton from threshold to 1500 MeV
• High statistics study of the reaction $\gamma p\to p{\pi }^0\eta$
• Measurement of the beam asymmetry in eta-photoproduction off the proton
• Determining pseudoscalar meson photo-production amplitudes from complete experiments
• Measurement of the reaction gamma p --> K0 Sigma+ at photon energies up to 2.6 GeV
• Quasi-free photoproduction of eta-mesons of the neutron
• Differential cross sections and recoil polarizations for the reaction gamma p -> K+ Sigma0
• ${\pi }^0$ photoproduction on the proton for photon energies from 0.675 to 2.875 GeV
• Polarization Observables for Two-Pion Production off the Nucleon
• Measurement of beam-recoil observables Ox, Oz and target asymmetry for the reaction gamma p -> K Lambda
• Neutral pion photoproduction off protons in the energy range 0.3 GeV < E(gamma) < 3 GeV
• N* and Delta* decays into N pi0 pi0
• High statistics study of the reaction $\gamma p\to p2{\pi }^0$
• Test of low-energy theorems for p(\vec{gamma},π^{0})p in the threshold region
• Differential cross section and photon beam asymmetry for the gamma n -> K+ Sigma- reaction at Egamma=1.5-2.4 GeV
• Well-established nucleon resonances revisited by double-polarization measurements
• The helicity amplitudes A${}_{1/2}$ and A${}_{3/2}$ for the D${}_{13}(1520)$ resonance obtained from the $\vec{\gamma }\vec{p}\to p{\pi }^0$ reaction}
• eta-prime photoproduction on the proton for photon energies from 1.527 to 2.227 GeV
• $K^{+}\Lambda$ and $K^{+}{\Sigma }^0$ photoproduction with fine center-of-mass energy resolution
• Differential cross sections and spin density matrix elements for the reaction gamma p -> p omega
• Study of the reaction $\gamma p\to p{\pi }^0\eta$
• Beam-Helicity Asymmetries in Double-Charged-Pion Photoproduction on the Proton
• Photoproduction of pi^0 eta on protons and the Delta(1700)D_{33} resonance
• Photoproduction of $\Lambda$ and ${\Sigma }^0$ hyperons using linearly polarized photons
• Photoproduction of the $\omega$ meson off the proton near threshold
• Linearly polarised photon beams at ELSA and measurement of the beam asymmetry in pi^0-photoproduction off the proton
• The Jefferson Lab Frozen Spin Target
• 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
• Photoproduction of mesons off nuclei
• Evidence for a parity doublet Delta(1920)P_{33} and Delta(1940)D_{33}$ from γp\to pπ^0η
• Beam asymmetry for pi+ and pi0 photoproduction on the proton for photon energies from 1.102 to 1.862 GeV
• Measurement of pi^0 photoproduction on the proton at MAMI C
• Cross Section Measurements of Charged Pion Photoproduction in Hydrogen and Deuterium from 1.1 to 5.5 GeV
• Development of High Intensity Laser-Electron Photon Beams up to 2.9 GeV at the SPring-8 LEPS Beamline
• A narrow structure in the excitation function of eta-photoproduction off the neutron
• Accurate Test of Chiral Dynamics in the \boldmath$\vec{\gamma }p\to {\pi }^{0}p$ Reaction
• Extracting the photoproduction cross section off the neutron gn-->pi-p from deuteron data with FSI effects
• Study of the gamma p --> pi0 pi0 p reaction with the Crystal Ball/TAPS at the Mainz
• Measurement of the transverse target and beam-target asymmetries in $\eta$ meson photoproduction at MAMI
• Photoproduction of pi0pi0 and pi0pi+-pairs off the proton from threshold to the second resonance region
• Beam-Helicity Asymmetries in Double Pion Photoproduction off the Proton
• Photon beam asymmetry $\Sigma$ for $\eta$ and ${\eta }^{\prime }$ photoproduction from the proton
• Radiative pi0 photoproduction on protons in the Delta+(1232) region
• Photoproduction of meson pairs: First measurement of the polarization observable I^s
• First measurement of the helicity asymmetry $E$ in $\eta$ photoproduction on the proton
• Photoproduction of ω Mesons off the Proton
• A measurement of the differential cross section for the reaction $\gamma n\to {\pi }^{-}p$ from deuterium
• Differential cross section of gamma n to K+ Sigma- on bound neutrons with incident photons from 1.1 to 3.6 GeV
• Neutron-antineutron oscillations from lattice QCD
• First Measurement of the Polarization Observable E in the $\vec{p}(\vec{\gamma },{\pi }^{+})n$ Reaction up to 2.25 GeV
• First results on nucleon resonance photocouplings from the $\gamma p\to {\pi }^{+}{\pi }^{-}p$ reaction
• Baryon Resonance Analysis from SAID
• Backward-angle photoproduction of eta meson from protons at E_gamma = 1.6 - 2.4 GeV
• Measurement of the $\vec{\gamma }p\to K^{+}\Lambda$ Reaction at Backward Angles
• Amplitude analysis of gamma n --> pi- p data above 1 GeV
• First Measurement of the $\Sigma$ Beam Asymmetry in ${\eta }^{\prime }$ Photoproduction off the Proton near Threshold
• Insight into the narrow structure in {\boldmath{$\eta$}}-photoproduction on the neutron from helicity dependent cross sections
• Measurement of the Differential and Total Cross Sections of the $\gamma d\to K^0\Lambda (p)$ Reaction within the Resonance Region
• The polarization observables T, P, and H and their impact on $\gamma p\to p{\pi }^0$ multipoles
• Measurement of the beam-helicity asymmetry $I^{\odot }$ in the photoproduction of ${\pi }^0$-pairs off the proton and off the neutron
• Measurement of the Beam Asymmetry $\Sigma$ in the Forward Direction for pi0 Photoproduction
• First measurement of the circular beam asymmetry in the gamma p --> pi0 eta p reaction
• Information Content of Polarization Measurements
• Precise Measurement of Sigma Beam Asymmetry for Positive Pion Photoproduction on the Proton from 800 to 1500 Mev
• Measurement of the ${}^{1}H$($\vec{\gamma }$, $\vec{p}$)${\pi }^0$ reaction using a novel nucleon spin polarimeter
• Measurement of the helicity asymmetry $E$ in $\omega \to {\pi }^{+}{\pi }^{-}{\pi }^0$ photoproduction
• Differential Cross Section Measurements for $\gamma n\to {\pi }^{-}p$ Above the First Nucleon Resonance Region
• Beam asymmetry in near threshold omega photoproduction off the proton
• Measurement of Inverse Pion Photoproduction at Energies Spanning the N(1440) Resonance
• Evaluation of the gn-->pi-p differential cross sections in the Delta-isobar region
• First measurement of the polarization observable $E$ and helicity-dependent cross sections in single ${\pi }^0$ photoproduction from quasi-free nucleons
• Backward-angle photoproduction of ${\pi }^0$ mesons on the proton at $E_{\gamma }$ = 1.5--2.4 GeV
• Measurement of the beam-helicity asymmetry $I^{\odot }$ in the photoproduction of ${\pi }^0{\pi }^{\pm }$-pairs off protons and off neutrons
• Measurement of the g p -> K^0 Sigma^+ reaction with the Crystal Ball/TAPS detectors at the Mainz Microtron
• Study of the $\gamma p\to {\pi }^0\eta p$ reaction with the A2 setup at MAMI
• Photoproduction ofeta-pi pairs off nucleons and deuterons
• Exclusive photoproduction of ${\pi }^0$ up to large values of Mandelstam variables $s,t$ and $u$ with CLAS
• Double-polarization observable G in neutral-pion photoproduction off the proton
• Beam asymmetry $\Sigma$ measurements on the ${\pi }^{-}$ photoproduction off neutrons
• On the Extraction of Cross Sections for pi0 and eta Photoproduction off Neutrons from Deuteron Data
• Spin Information from Vector-Meson Decay in Photoproduction
• Photoproduction of eta mesons from the neutron: cross sections and double polarization observable E
• Measurement of the Cross Section Asymmetry of the Reaction gp-->pi0p in the Resonance Energy Region Eg = 0.5 - 1.1 GeV
• Measurement of double polarisation asymmetries in $\omega$-photoproduction
• A cryostat to hold frozen-spin polarized HD targets in CLAS: HDice-II
• Measurement of the beam asymmetry $\Sigma$ and the target asymmetry $T$ in the photoproduction of $\omega$ mesons off the proton using CLAS at Jefferson Laboratory
• Photon beam asymmetry $\Sigma$ in the reaction $\vec{\gamma }p\to p\omega$ for $E_{\gamma }$ = 1.152 to 1.876 GeV
• Differential cross section and photon beam asymmetry for the gamma p -> pi+ n reaction at forward pi+ angles at Egamma=1.5-2.95 GeV
• Photon asymmetry measurements of $\overrightarrow{\gamma }\mathrm{p}\to {\pi }^0\mathrm{p}$ for E${}_{\gamma }$=320$-$650 MeV
• Beam-Target Helicity Asymmetry $E$ in $K^0\Lambda$ and $K^0{\Sigma }^0$ Photoproduction on the Neutron
• First measurement of target and beam-target asymmetries in the $\gamma p\to {\pi }^0\eta p$ reaction
• Polarization components in ${\pi }^0$ photoproduction at photon energies up to 5.6 GeV
• First measurement of helicity-dependent cross sections in pi0-eta photoproduction from quasi-free nucleons

Cited by in corpus (24)

• 50 Years of Quantum Chromodynamics
• Light Baryon Spectroscopy
• Light baryon resonances from a coupled-channel study including $\mathbf{K\Sigma }$ photoproduction
• Evidence for the $N^{\prime }(1720)3/2^{+}$ Nucleon Resonance from Combined Studies of CLAS ${\pi }^{+}{\pi }^{-}p$ Photo- and Electroproduction Data
• Jülich-Bonn-Washington Model for Pion Electroproduction Multipoles
• Electromagnetic Transition Form Factors of Baryon Resonances
• Photo- and Electrocouplings of Nucleon Resonances
• Coupled-channel analysis of pion- and eta-electroproduction with the Jülich-Bonn-Washington model
• Observation of the $p{\eta }^{\prime }$ Cusp in the New Precise Beam Asymmetry $\Sigma$ Data for $\gamma p\to p\eta$
• On the Photoproduction Reactions $\gamma d\to \pi NN$
• Photo- and electro-production of narrow exotic states: from light quarks to charm and up to bottom
• 70 Years of Hyperon Spectroscopy: A review of strange $\Xi$, $\Omega$ baryons, and the spectrum of charmed and bottom baryons
• Moravcsik's theorem on complete sets of polarization observables reexamined
• Model selection for $K^{+}{\Sigma }^{-}$ photoproduction within isobar model
• $\Lambda$ and $\Sigma$ Excitations and the Quark Model
• Observation of a structure in the M${}_{p\eta }$ invariant mass distribution near 1700 MeV/$c^2$ in the $\gamma \mathbf{p}\to \mathbf{p}{\pi }^0\eta$ reaction
• Minimal complete sets for two pseudoscalar meson photoproduction
• Single-pion contribution to the Gerasimov--Drell--Hearn sum rule and related integrals
• Global Data-Driven Determination of Baryon Transition Form Factors
• Magnetic field in relativistic heavy ion collisions: testing the classical approximation
• Photoproduction of $\eta$ mesons off the proton for $1.2<E_{\gamma }<4.7$ GeV using CLAS at Jefferson Laboratory
• Combined analysis of the $\gamma n\to K^0{\Sigma }^0$ and $\gamma n\to K^{+}{\Sigma }^{-}$ reactions
• Single ${\pi }^0$ Production Off Neutrons Bound in Deuteron with Linearly Polarized Photons
• New graphical criterion for the selection of complete sets of polarization observables and its application to single-meson photoproduction as well as electroproduction