Determination of E and G Observables in n Photoproduction on the CLAS Frozen Spin Target (FROST)

Conference · Wed Jan 01 00:00:00 EST 2014 · International Journal of Modern Physics: Conference Series

DOI:https://doi.org/10.1142/S201019451460115X· OSTI ID:1122852

Senderovich, Igor ^[1]; Morrison, Brian T. ^[2]; Dugger, Michael R. ^[2]; Ritchie, Barry G. ^[2]; Tucker, Ross J. ^[2]

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1. University of Connecticut, Storrs, CT (United States)
2. Arizona State University, Tempe, AZ (United States)

Polarization observables are vital for disentangling overlapping resonances in the baryon spectrum. Extensive data have been collected at Jefferson Lab in Hall B with circularly and linearly polarized tagged photon beam incident on longitudinally polarized protons provided by the Frozen Spin Target (FROST). The focus of the described work is on η photoproduction, which acts as an "isospin filter", isolating the N*(I = 1/2) resonances. Preliminary results for the double-polarization observables E and G are presented. There are currently no data on these in the world database for η photoproduction.

• 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: 1122852
• Report Number(s): JLAB-PHY-13-1835; DOE/OR/23177-3029; TRN: US1400266
• Journal Information: International Journal of Modern Physics: Conference Series, Vol. 26; Conference: NSTAR 2013, Valencia (Spain) 27-30 May 2013; ISSN 2010-1945
• Publisher: World Scientific
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
Helicity observables
photoproduction
polarized target