said analysis of meson photoproduction: determination of neutron and proton em couplings
;Strakovsky Igor;Briscoe William;Kudryavtsev Alexander;Tarasov Vladimir;Workman Ron
utilitas mathematica2014Vol. 73pp. 04003-
105
igor2014epjsaid
Abstract
We present an overview of the GW SAID group effort to analyze on new pion photoproduction on both proton- and neutron-targets. The main database contribution came from the recent CLAS and MAMI unpolarized and polarized measurements. The differential cross section for the processes γn → π−p was extracted from new measurements accounting for Fermi motion effects in the impulse approximation (IA) as well as NN- and πN effects beyond the IA. The electromagnetic coupling results are compared to other recent studies.