Helicity Asymmetry Measurement for ${\pi }^0$ Photoproduction on the CLAS Frozen Spin Target

Abstract

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 $\vec{\gamma }\vec{p}\to {\pi }^{0}p$ was determined at CM energies between 1450 MeV and 2050 MeV and compared to the SAID, MAID, and BnGa partial-wave analyses.

5 pages, 5 figures; Hadron 2015 Proceedings

References in corpus (4)

• Big-Bang Nucleosynthesis
• Unitary Isobar Model - MAID2007
• First measurement of the helicity asymmetry for $\gamma p\to p{\pi }^0$ in the resonance region
• First Measurement of the Polarization Observable E in the $\vec{p}(\vec{\gamma },{\pi }^{+})n$ Reaction up to 2.25 GeV

Cited by in corpus (1)

• Measurement of Target and Double-spin Asymmetries for the $\vec{e}\vec{p}\to e{\pi }^{+}(n)$ Reaction in the Nucleon Resonance Region at Low $Q^2$