Helicity Asymmetry Measurement for $\pi^0$ Photoproduction on the CLAS Frozen Spin Target
XVITH INTERNATIONAL CONFERENCE ON HADRON SPECTROSCOPY (HADRON2015)(2015)
摘要
The measurement was performed with circularly polarized photons incident on longitudinally polarized target in Hall B at the Thomas Jefferson National Accelerator Facility. The helicity asymmetry E for (gamma) over bar(p) over bar -> pi(0) p was determined at CM energies between 1450 MeV and 2050 MeV and compared to the SAID, MAID, and BnGa partial-wave analyses.
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