Exclusive measurements of omega electroproduction off the proton in the resonance region
- University of South Carolina, Columbia, SC (United States)
A complete theory of strong interactions must describe the excited baryon spectrum as well as the structure of prominent states, which reflects the dynamics of nonperturbative QCD. Beyond the discriminating power of exclusive single- and double-pion electroproduction, the omega channel provides an additional probe of high-mass excited states. The current analysis provides preliminary differential and integrated cross sections of omega electroproduction off the proton from W = 1.7 to 3.2 GeV and Q{sup 2} = 1.5 to 5.5 GeV{sup 2}. The data was collected by JLab's CLAS detector during two run periods and comprises the largest sample of exclusive resonance-region omega electroproduction ever analyzed. Preliminary Legendre decomposition of the cross sections supports previous indications of s-channel contributions to cross sections in the resonance region.
- Research Organization:
- Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC)
- DOE Contract Number:
- AC05-06OR23177
- OSTI ID:
- 1116349
- Report Number(s):
- JLAB-PHY-13-1804; DOE/OR-23177-2980; TRN: US1400161
- Journal Information:
- International Journal of Modern Physics: Conference Series, Vol. 26; Conference: NSTAR 2013, Peniscola (Spain), 27-30 May 2013; ISSN 2010-1945
- Publisher:
- World Scientific
- Country of Publication:
- United States
- Language:
- English
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