Why We Need Neutron Data for Pion Photoproduction

ORAL

Abstract

An overview of the GW SAID group effort to analyze new pion photoproduction on neutron-target. The main database contribution came from the recent CLAS and MAMI unpolarized and polarized measurements. The differential cross section for the processes $\gamma $n$\to \pi $N was extracted from new measurements accounting for Fermi motion effects in the impulse approximation (IA) as well as NN and $\pi $N effects beyond the IA. The EM resonance coupling results are compared to other recent studies.

*This work was supported in part by the US DOE Grant No. DE.FG02.99ER41110.

–

Authors

  • Igor Strakovsky

    • The George Washington University

  • Bill Briscoe

    • GW Institute for Nuclear Studies - GWINS
    • The George Washington University
    • George Washington University

  • Michael Doring

    • The George Washington University
    • George Washington University

  • Ronald Workman

    • The George Washington University