Polarization observables in ${\pi }^0\eta$-photoproduction on the proton

Abstract

For ${\pi }^0\eta$-photoproduction on the nucleon formal expressions are developed for the five-fold differential cross section and the recoil polarization including beam and target polarizations. The polarization observables are described by various beam, target and beam-target asymmetries for polarized photons and/or polarized nucleons. They are given as bilinear hermitean forms in the reaction matrix elements divided by the unpolarized cross section. Numerical results for the linear and circular beam asymmetries for $\gamma p\to {\pi }^0\eta p$ are obtained within an isobar model and are compared with existing data. Predictions are also given for the target asymmetry $T_{11}$, and the beam-target asymmetries $T_{10}^c$ and $T_{11}^c$ for circularly polarized photons.

19 pages, 8 figures

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• 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
• Helicity asymmetries in double pion photoproduction on the proton
• Analysis of angular distributions in gamma N \to pi0 eta N

Cited by in corpus (12)

• High statistics study of the reaction $\gamma p\to p{\pi }^0\eta$
• Light Baryon Spectroscopy
• 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
• Complete set of observables for photoproduction of two pseudoscalars on a nucleon
• First measurement of target and beam-target asymmetries in the $\gamma p\to {\pi }^0\eta p$ reaction
• Helicity-dependent cross sections for the photoproduction of ${\pi }^0$ pairs from nucleons
• Study of the partial wave structure of ${\pi }^0\eta$ photoproduction on protons
• Partial wave expansion for photoproduction of two pseudoscalars on a nucleon
• Measurement of the beam-helicity asymmetry in photoproduction of ${\pi }^0\eta$ pairs on carbon, aluminum, and lead
• Scalar isovector resonance photoproduction through the final state meson-meson interactions
• Target and beam-target asymmetry measurements at MAMI