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