Target and double spin asymmetries for {rvec e} {rvec p} {yields} e{prime} p {pi}{sup 0}
An extensive experimental program to measure the spin structure of the nucleons is carried out in Hall B with the CLAS detector at Jefferson Lab using a polarized electron beam incident on a polarized target. Spin degrees of freedom offer the possibility to test, in an independent way, existing models of resonance electroproduction. The present analysis selects the exclusive channel {rvec p}({rvec e}, e{prime}, p){pi}{sup 0} from data taken in 2000-2001, to extract single and double asymmetries in a Q{sup 2} range from 0.2 to 0.75 GeV{sup 2} and W range from 1.1 to 1.6 GeV/c{sup 2}. Results of the asymmetries will be presented as a function of the center of mass decay angles of the {pi}{sup 0} and compared with the unitary isobar model MAID, the dynamic model by Sato and Lee and the dynamic model DMT.
- Research Organization:
- Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
- Sponsoring Organization:
- USDOE Office of Energy Research (ER) (US)
- DOE Contract Number:
- AC05-84ER40150
- OSTI ID:
- 842070
- Report Number(s):
- JLAB-PHY-04-326; DOE/ER/40150-3532; TRN: US0503155
- Resource Relation:
- Conference: Workshop On The Physics Of Excited Nucleons (NSTAR 2004), Grenoble (FR), 03/24/2004--03/27/2004; Other Information: PBD: 1 Mar 2004
- Country of Publication:
- United States
- Language:
- English
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