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Title: Baryon spectroscopy with polarization observables from CLAS

The spectrum of nucleon excitations is dominated by broad and overlapping resonances. Polarization observables in photoproduction reactions are key in the study of these excitations. They give indispensable constraints to partial-wave analyses and help clarify the spectrum. A series of polarized photoproduction experiments have been performed at the Thomas Jefferson National Accelerator Facility with the CEBAF Large Acceptance Spectrometer (CLAS). These measurements include data with linearly and circularly polarized tagged-photon beams, longitudinally and transversely polarized proton and deuterium targets, and recoil polarizations through the observation of the weak decay of hyperons. An overview of these studies and recent results will be given.
  1. Univ. of South Carolina, Columbia, SC (United States); Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
Publication Date:
OSTI Identifier:
Report Number(s):
JLAB-PHY-16-2201; DOE/OR/23177-3850; arXiv:1602.07284
NSF PHY-1505615
DOE Contract Number:
Resource Type:
Resource Relation:
Journal Name: Few Body Syst.; Journal Volume: 57; Journal Issue: 10; Conference: ECT* Workshop on Nucleon Resonances : From Photoproduction to High Photon Virtualities, 12-16 Oct 2015. Trento, Italy
Research Org:
Thomas Jefferson National Accelerator Facility, Newport News, VA (United States)
Sponsoring Org:
USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26)
Country of Publication:
United States