$\Upsilon$ photo-production on the proton at the Electron-Ion Collider
High Energy Physics - Phenomenology
2020-07-22 v2 High Energy Physics - Experiment
Abstract
We present a dispersive analysis with the aim to extract the -p scattering length from experiments. In this framework, the imaginary part of the -p forward scattering amplitude is obtained from cross section measurements, and is constrained at high energies from existing HERA and LHC data. Its real part is calculated through a once-subtracted dispersion relation, and the subtraction constant is proportional to the -p scattering length. We perform a feasibility study for photo-production experiments at an Electron-Ion Collider and discuss the sensitivity and precision that can be reached in the extraction of the -p scattering length.
Keywords
Cite
@article{arxiv.2005.09293,
title = {$\Upsilon$ photo-production on the proton at the Electron-Ion Collider},
author = {Oleksii Gryniuk and Sylvester Joosten and Zein-Eddine Meziani and Marc Vanderhaeghen},
journal= {arXiv preprint arXiv:2005.09293},
year = {2020}
}