Study of polarization observables in double pion photoproduction on the proton

Details Study of polarization observables in double pion photoproduction on the proton Study of polarization observables in double pion photoproduction on the proton

2001-06-04

arxiv.org/abs/nucl-th/0106005v1

Nucl.Phys. A697 (2002) 372-387

Physics

Nuclear Physics

Nuclear Theory

23 pages, 14 ps figures

Scientific paper

10.1016/S0375-9474(01)01251-9

Using a model for two pion photoproduction on the proton previously tested in total cross sections and invariant mass distributions, we evaluate here polarization observables on which recent experiments are providing new information. We evaluate cross sections for spin 1/2 and 3/2, which are measured at Mainz and play an important role in tests of the GHD sum rule. We also evaluate the proton polarization asymmetry $\Sigma$ which is currently under investigation at GRAAL in Grenoble.

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