$^2$H$(e,e'p)$ observables using a Regge model parameterization of final state interactions

TL;DR

This paper introduces a Regge model to describe final state interactions in deuteron electrodisintegration at GeV energies, improving upon previous SAID-based approaches and enabling broader kinematic analysis.

Contribution

The work implements a Regge model for FSI, allowing for extended kinematic coverage and comparison with prior SAID-based models in deuteron electrodisintegration.

Findings

Good agreement between Regge and SAID models in overlapping regions

Identification of observables sensitive to model differences

Enhanced kinematic applicability of FSI modeling

Abstract

In previous papers we have presented a calculation describing electrodisintegration of the deuteron at GeV energies. The model is fully relativistic and incorporates full spin dependence of the final state interactions (FSI), which were obtained from the SAID analysis. It was, however, limited kinematically due to lack of availability of the SAID amplitudes. This work rectifies this problem by implementing a Regge model to describe the FSI. We present an outline of the model and show comparisons between the two approaches in a region of overlap. We see good agreement between the models, and note observables which can provide additional insight due to model sensitivity.