Progress on neutron-target multipoles above 1 GeV
Journal Article
We report a new extraction of nucleon resonance couplings using π- photo-production cross sections on the neutron. The world database for the process γn → π-p above 1 GeV has quadrupled with the addition of new differential cross sections from the CEBAF Large Acceptance Spectrometer (CLAS) at Jefferson Lab in Hall B. Differential cross sections from CLAS have been improved with a new final-state interaction determination using a diagrammatic technique taking into account the SAID phenomenological NN and πN final-state interaction amplitudes. Resonance couplings have been extracted and compared to previous determinations. With the addition of these new cross sections, significant changes are seen in the high-energy behavior of the SAID cross sections and amplitudes.
Full Text
Duke Authors
Cited Authors
- Strakovsky, II; Chen, W; Gao, H; Briscoe, WJ; Dutta, D; Kudryavtsev, AE; Mirazite, M; Paris, M; Rossi, P; Stepanyan, S; Tarasov, VE; Workman, RL
Published Date
- December 1, 2012
Published In
Volume / Issue
- 37 /
Electronic International Standard Serial Number (EISSN)
- 2100-014X
International Standard Serial Number (ISSN)
- 2101-6275
Digital Object Identifier (DOI)
- 10.1051/epjconf/20123708005
Citation Source
- Scopus