Delta excitation in deuteron-proton elastic scattering

TL;DR

This paper models deuteron-proton elastic scattering using multiple scattering formalism, including $44$-isobar excitation, to accurately describe differential cross sections across a wide energy and angular range.

Contribution

It introduces a comprehensive approach that incorporates $44$-isobar excitation into the multiple scattering formalism for deuteron-proton scattering.

Findings

The model successfully describes differential cross sections from 500 to 1300 MeV.

Including $44$-isobar excitation improves agreement with experimental data.

The approach covers the entire angular range for the studied energies.

Abstract

Deuteron-proton elastic scattering is studied in the multiple scattering expansion formalism. The four contributions are taken into account: one-nucleon-exchange, single- and double scattering, and $\Delta$-isobar excitation. The presented approach was applied to describe the differential cross sections at deuteron energies between 500 and 1300 MeV in a whole angular range. The obtained results are compared with the experimental data.