Measurements of the Inclusive Electron Scattering off Protons with CLAS12
ORAL
Abstract
Electron scattering data off protons from the CLAS12 detector in Hall B at Jefferson Laboratory have become available and cover a wide kinematic range in W up to 4 GeV and Q$^{\mathrm{2}}$ up to 10 GeV$^{\mathrm{2}}$, offering new opportunities to explore inclusive, semi-inclusive, and fully exclusive reactions. A study that aims to extract the inclusive electroproduction cross sections from the CLAS12 data collected at a beam energy of 10.6 GeV from an unpolarized liquid-hydrogen target is now in progress and preliminary results will be presented. Because of the large acceptance of CLAS12, these data offer a unique opportunity to measure inclusive cross sections at W from the N\textunderscore threshold to W from 2.0 GeV to 3.0 GeV within any given Q$^{\mathrm{2}}$-bin. This unique W-coverage at fixed Q2-values is of particular importance for the extension of our knowledge on the nucleon parton distribution function~from the data on F2 structure function in the resonance region by employing the existing CLAS results on the \textunderscore $_{\mathrm{v}}$pN* electroexcitation amplitudes. These studies also offer valuable input for the exploration of quark-hadron duality.
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Authors
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Nick Markov
Jefferson Lab