Deuteron-proton backward elastic scattering at GeV energies

TL;DR

This paper investigates deuteron-proton elastic scattering at GeV energies using a multiple-scattering approach, accounting for various reaction mechanisms, and compares theoretical predictions with experimental data.

Contribution

It introduces a comprehensive calculation method for reaction amplitudes including multiple mechanisms and polarization observables at high energies.

Findings

Good agreement with experimental cross sections

Effective modeling of polarization observables

Validated multiple-scattering approach at GeV energies

Abstract

Deuteron-proton elastic scattering is considered at the energies from 880 MeV to 2 GeV at the scattering angles $\theta^*\ge 140^\circ$. The multiple-scattering method is used to calculate the reaction amplitude. Four reaction mechanisms are taken into account: one-nucleon-exchange, single-scattering, and double-scattering with a nucleon and a delta-isobar in the intermediate state. The method allows calculating both unpolarized differential cross section and any polarization observables. All the results obtained are compared to the experimental data.