Determining pseudoscalar meson photoproduction amplitudes from complete experiments

@article{Sandorfi2011DeterminingPM,
  title={Determining pseudoscalar meson photoproduction amplitudes from complete experiments},
  author={Andrew M. Sandorfi and Samuel D. Hoblit and Hiroyuki Kamano and T.-S.H. Lee},
  journal={Journal of Physics G},
  year={2011},
  volume={38},
  pages={053001}
}
A new generation of complete experiments is focused on a high precision extraction of pseudoscalar meson photoproduction amplitudes. Here, we review the development of the most general analytic form of the cross section, dependent upon the three polarization vectors of the beam, target and recoil baryon, including all single-, double- and triple-polarization terms involving 16 spin-dependent observables. We examine the different conventions that have been used by different authors, and we… 

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References

SHOWING 1-10 OF 34 REFERENCES

Completeness rules for spin observables in pseudoscalar meson photoproduction

The number and type of measurements needed to ascertain the amplitudes for pseudoscalar meson photoproduction are analyzed in this paper. It is found that eight carefully selected measurements can

Threshold pion photoproduction on nucleons

Pion photo- and electroproduction of the nucleon at threshold is reviewed in theory and experiment. In this region the leading S-wave amplitudes (E0+) are predicted by low-energy theorems (LET) based

Photo- and electroproduction of eta mesons

Eta photo- and electroproduction off the nucleon is investigated in an effective lagrangian approach that contains Born terms and both vector meson and nucleon resonance contributions. In particular,

Kaon photoproduction: Data consistency, coupling constants, and polarization observables.

TLDR
A thorough analysis of the existing differential cross section data up to 1.4 GeV shows the Orsay data to be internally inconsistent, and a rather simple reaction mechanism with the extracted main kaon-hyperon-nucleon coupling constants in agreement with the SU(3) predictions is proposed.

Spin observables at threshold for meson photoproduction.

TLDR
The expected nodal structure of all sixteen observables near threshold, their evolution with momentum, the role of the centrifugal barrier on threshold multipole amplitudes, and the roles of resonance effects on spin observables are discussed.

Review of Particle Physics

  • K. Olive
  • Physics, Environmental Science
    Physical review. D, Particles and fields
  • 1996
The Review summarizes much of particle physics and cosmology. Using data from previous editions, plus 3,283 new measurements from 899 papers, we list, evaluate, and average measured properties of

Differential cross section and recoil polarization measurements for the γp→K+Λ reaction using CLAS at Jefferson Lab

We present measurements of the differential cross section and Lambda recoil polarization for the gamma p to K+ Lambda reaction made using the CLAS detector at Jefferson Lab. These measurements cover

Principles and problems of phase-shift analysis

Phase-shift analysis is the extraction of the scattering amplitude from the scattering cross section and other experimentally observable quantities such as polarizations. When only elastic scattering