Partial wave expansion for photoproduction of two pseudoscalars on a nucleon

Abstract

The amplitudes for photoproduction of two pseudoscalars on a nucleon are expanded in the overall c.m. frame in a model independent way with respect to the contribution of the final state partial wave of total angular momentum $J$ and its projection on the normal to the plane spanned by the momenta of the final particles. The expansion coefficients which are analogues to the multipole amplitudes for single meson photoproduction contain the complete information about the reaction dynamics. Results of an explicit evaluation are presented for the moments $W_{jm}$ of the inclusive angular distribution of an incident photon beam with respect to the c.m.\ coordinate system defined by the final particles taking photoproduction of ${\pi }^0{\pi }^0$ and ${\pi }^0\eta$ as an example.

9 pages, 3 figures

References in corpus (10)

• Dynamical coupled-channel model of meson production reactions in the nucleon resonance region
• New results on the Roper resonance and the P_{11} partial wave
• Evidence for a parity doublet Delta(1920)P_{33} and Delta(1940)D_{33}$ from γp\to pπ^0η
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• First measurement of the circular beam asymmetry in the gamma p --> pi0 eta p reaction
• Isobar model analysis of pi0-eta photoproduction on protons
• Evaluation of the polarization observables I^S and I^C in the reaction gamma p --> pi^0 eta p
• Polarization observables in ${\pi }^0\eta$-photoproduction on the proton
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Cited by in corpus (6)

• High statistics study of the reaction $\gamma p\to p2{\pi }^0$
• Light Baryon Spectroscopy
• Coherent pi0-pi0 photoproduction on lightest nuclei
• Complete set of observables for photoproduction of two pseudoscalars on a nucleon
• Study of the partial wave structure of ${\pi }^0\eta$ photoproduction on protons
• A Truncated partial wave analysis of a complete experiment for photoproduction of two pseudoscalar mesons on a nucleon