SAID Analysis of Meson Photoproduction : Determination of Neutron and Proton EM Couplings

pi- p was extracted from new measurements accounting for Fermi motion effects in the impulse approximation (IA) as well as NN and piN effects beyond the IA. The EM coupling results are compared to other recent studies.
Comment: 4 pages, 3 figures, 2 tables; Contribution to the proceedings of the 13th International Conference on Meson-Nucleon Physics and Structure of Nucleon (MENU 2013), Rome, Italy, Sept. - Oct. 2013 -->

Druh dokumentu:	Working Paper
DOI:	10.1051/epjconf/20147304003
Přístupová URL adresa:	http://arxiv.org/abs/1401.3027
Přírůstkové číslo:	edsarx.1401.3027
Autor:	Strakovsky, Igor, Briscoe, William, Kudryavtsev, Alexander, Tarasov, Vladimir, Workman, Ron
Rok vydání:	2014
Předmět:	High Energy Physics - Phenomenology High Energy Physics - Experiment Nuclear Experiment Nuclear Theory
Druh dokumentu:	Working Paper
DOI:	10.1051/epjconf/20147304003
Popis:	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 gamma n --> pi- p was extracted from new measurements accounting for Fermi motion effects in the impulse approximation (IA) as well as NN and piN effects beyond the IA. The EM coupling results are compared to other recent studies. Comment: 4 pages, 3 figures, 2 tables; Contribution to the proceedings of the 13th International Conference on Meson-Nucleon Physics and Structure of Nucleon (MENU 2013), Rome, Italy, Sept. - Oct. 2013
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1401.3027 Zobrazit plný text záznamu View this record from Arxiv