Ratio of Electron Scattering from Nuclei to Deuterium at low x and low Momentum Transfer

TL;DR

This paper analyzes electron scattering ratios from various nuclei versus deuterium at low x and Q^2, revealing no significant differences across the studied momentum transfer range.

Contribution

It provides a comprehensive analysis of electron scattering ratios at low Q^2, including detailed radiative corrections and calibration, extending previous measurements.

Findings

No significant difference in nuclear ratios at low Q^2 compared to higher Q^2

Cross section ratios consistent across different targets

Refined analysis with radiative corrections and calibration

Abstract

We have extracted ratios of cross sections for scattering electrons from high mass targets compared to low mass targets in the region of x ~ 0.02 and Q^2 < 1 (GeV/c)^2 from SLAC experiments performed over the past three decades. Additional analysis was needed for radiative corrections, target end caps and calibration runs. We observe no significant difference in the nuclear ratio for low Q^2 compared to results at Q^2 > 1.