Helicity asymmetries in double pion photoproduction on the proton

Details Helicity asymmetries in double pion photoproduction on the proton Helicity asymmetries in double pion photoproduction on the proton

2004-07-16

arxiv.org/abs/nucl-th/0407049v2

Nucl.Phys. A748 (2005) 192-205

Physics

Nuclear Physics

Nuclear Theory

16 pages, 6 figures, version accepted for publication in Nuclear Physics A

Scientific paper

10.1016/j.nuclphysa.2004.10.028

Based on a prior model on double pion photoproduction on the proton, successfully tested in total cross sections and invariant mass distributions, we make a theoretical study of the angular dependence of helicity asymmetries from the interaction of circularly polarized photons with unpolarized protons. We show that this observable is sensitive to details of the internal mechanisms and, thus, represents a complementary test of the theoretical model.

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