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Exploring nucleon PDFs and quark-hadron duality from inclusive electron scattering data in the resonance region

ORAL

Abstract

We present our study of proton structure functions in view of the new CLAS12 experiments, which are to study inclusive electron scattering at a wide $Q^2$ range and with a broad coverage over Bjorken variable $x$ ($N^*$ region and above) at any given $Q^2$. So far, CLAS experiments have achieved major advances in the extraction of electrocouplings of most nucleon resonances in the mass range up to 1.8 GeV, showing consistency between the results from different meson electroproduction channels. We evaluate the contributions from the resonances to inclusive electron scattering $F_2$ and $F_L$ functions using the electrocoupling data as input, for the first time. Similarly, the contributions to the polarized structure functions $g_1$ and $g_2$ can be readily obtained as well. These studies are important for a future precise extraction of proton PDFs in the resonance region and for tests on quark-hadron duality.

Authors

  • Astrid Hiller Blin

    Thomas Jefferson National Accelerator Facility

  • Victor Mokeev

    JLab, Thomas Jefferson National Accelerator Laboratory, Newport News, VA 23606, Jefferson Lab, Thomas Jefferson National Accelerator Facility

  • Wally Melnitchouk

    Jefferson Lab, Thomas Jefferson National Accelerator Facility, Thomas Jefferson National Lab