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Strangeness Electroproduction on the Nucleon at CLAS

Author:
Carman, Daniel S.  


Journal:
8TH INTERNATIONAL WORKSHOP ON THE PHYSICS OF EXCITED NUCLEONS (NSTAR 2011)


Issue Date:
2012


Abstract(summary):

High-precision measurements of strange particle production from both proton and neutron targets are a core part of the physics program with the CL AS spectrometer in Hall B at Jefferson Laboratory. Measurements have been carried out at beam energies up to 6 GeV in experiments with polarized beams and polarized targets. This talk will focus on the electroproduction measurements that have been completed, which include cross sections and hyperon polarization observables for K+Y (Y = Lambda,Sigma(0)) final states over a broad kinematic range in momentum transfer Q(2) and invariant energy W, while spanning nearly the full kaon center-of-mass angular range. These data in the strangeness sector are necessary to better understand the different production mechanisms for A and hyperons and to disentangle the different resonant and non-resonant amplitudes in the intermediate state. The usefulness of the CLAS electroproduction data as part of a coupled-channel model fit will be discussed as well as an outlook of this program for the future.


Page:
195---198


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