Polarization observables in $π^0η$-photoproduction on the proton

Details Polarization observables in $π^0η$-photoproduction on the proton Polarization observables in $π^0η$-photoproduction on the proton

2010-10-20

arxiv.org/abs/1010.4213v2

Phys.Rev.C83:015503,2011

Physics

Nuclear Physics

Nuclear Theory

19 pages, 8 figures

Scientific paper

10.1103/PhysRevC.83.015503

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 $T^c_{10}$ and $T^c_{11}$ for circularly polarized photons.

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