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10-12 April 2019
Denver, CO
US/Mountain timezone

Towards a combined analysis of inclusive/exclusive electroproduction

12 Apr 2019, 09:45
25m
Director's Row H (Denver, CO)

Director's Row H

Denver, CO

Sheraton Denver Downtown Hotel, 1550 Court Pl. lobby level of the Plaza building
invited talk JPAC

Speaker

Dr Astrid Hiller Blin (Johannes Gutenberg Universität Mainz)

Description

The CLAS experiments have achieved major advances in the study of the $N^*$ region of the electroproduction spectrum. Data on electrocouplings of the many baryon resonances in the mass range up to 1.8 GeV showed consistency between the $N\pi$, $N\eta$ and $N\pi^+\pi^-$ channels. We present our theoretical studies of structure functions in view of the CLAS12 experiments planned in the near future, which are to study electron scattering observables at a wide $Q^2$ range from 0.05 GeV$^2$ to 12 GeV$^2$, with high precision in $x$. We model the resonant contributions to inclusive electron scattering, using the electrocoupling data as input. Our results are thus not fitted to the inclusive data: instead, we use the reliable extraction of the separate resonance contributions from exclusive reactions. We combine our resonance model with a non-resonant background based on Regge models, thus for the first time enabling a combined description of the low and high-x regions of the proton structure functions. This is useful for future endeavours on understanding the transition between low and high x regions, strongly related to tests on quark-hadron duality.

Primary author

Dr Astrid Hiller Blin (Johannes Gutenberg Universität Mainz)

Co-authors

Prof. Adam Szczepaniak (Indiana Univeristy/JLab) Dr Victor I Mokeev Mokeev (Thomas Jefferson National Accelerator Facility)

Presentation Materials