Measurement of the Ar(e,e$^\prime$ p) and Ti(e,e$^\prime$ p) cross sections in Jefferson Lab Hall A

TL;DR

This paper reports the first measurements of exclusive electron-scattering cross sections on natural argon and titanium targets at Jefferson Lab, providing data crucial for understanding nuclear structure and reactions involving these elements.

Contribution

It presents the first experimental cross section data for Ar(e,e'p) and Ti(e,e'p) reactions in parallel kinematics at Jefferson Lab, using a novel analysis of the E12-14-012 dataset.

Findings

Measured differential cross sections with ~4% uncertainty.

Compared experimental data with Monte Carlo simulations based on the Distorted Wave Impulse Approximation.

Provided insights into nuclear structure through analysis of missing energy and momentum distributions.

Abstract

The E12-14-012 experiment, performed in Jefferson Lab Hall A, has collected exclusive electron-scattering data (e,e$^\prime$p) in parallel kinematics using natural argon and natural titanium targets. Here, we report the first results of the analysis of the data set corresponding to beam energy of 2,222 MeV, electron scattering angle 21.5 deg, and proton emission angle -50 deg. The differential cross sections, measured with $\sim$4% uncertainty, have been studied as a function of missing energy and missing momentum, and compared to the results of Monte Carlo simulations, obtained from a model based on the Distorted Wave Impulse Approximation.