CLAS12 Run Group K Experiments Overview
Exploring electroproduction and Deeply Virtual Compton Scattering experiments conducted by CLAS12 Run Group K, focusing on kinematic coverage, particle ID, and future experiments to shed light on strong QCD dynamics.
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Overview of CLAS12 Run Group K Experiments Joshua Artem Tan on behalf of CLAS Collaboration Run Group K JLAB User s Group Meeting July 11, 2019
Outline I. Introduction to CLAS12 Run Group K II. ? Studies via ?? Electroproduction III. ?+? IV.Deeply Virtual Compton Scattering V. Future Run Group K Experiments
Introduction to CLAS12 Run Group K Forward Detector Central Detector Inclusive Spectrum: ?2= ?2 ? = Particle ID ? + ?2 Run Group K: Run at 6.5 GeV and 7.5 GeV in Dec. 2018 Acquired 7% of approved beam time Longitudinally polarized electrons on unpolarized H2 target
? Studies via ?? Electroproduction Kinematic Coverage MM ? ?+ Particle ID Run Group K: Extraction of ???? electrocouplings from ?? electroproduction off protons. Comparison with the results from ??, ?+? ? electroproduction off protons. Explore the interplay between meson-baryon and quark degrees of freedom in the ? structure. Shed light on dynamics of dressed quark mass generation and di-quark correlations in different excited nucleon states. A unique experimental input on many facets of strong QCD in generation of the excited nucleon states of different structural features.
Deeply Virtual Compton Scattering DVCS Kinematics: ?LU? ?1,unp ?LU? =1 ? sin ? ? ? ? ? ? ? + ? ? Kinematic Coverage Beam Spin Asymmetry Deeply virtual Compton scattering (DVCS) at 6.5 and 7.5 GeV polarized electron beam: Measure beam spin asymmetry describing DVCS and Bethe-Heitler (BH) interference term for unpolarized target Access chiral-even GPDs: ??, ??, and ??
