Spin effects and relative momentum spectrum of two protons in deuteron charge-exchange breakup

TL;DR

This paper investigates the spin effects and relative momentum spectrum of two protons in deuteron charge-exchange breakup, analyzing how polarization and interactions influence the reaction dynamics and phase differences.

Contribution

It introduces a method to separate spin-dependent terms in the charge transfer amplitude using polarized particles and examines the impact of the deuteron d-wave state.

Findings

Polarization allows separation of spin-dependent amplitude terms.

The relative momentum distribution is derived within the impulse approximation.

The influence of Coulomb and strong interactions on the spectrum is analyzed.

Abstract

The relation between the differential cross section of the charge-exchange breakup of a fast deuteron d+p -> (pp)+n and the differential cross section of the charge transfer process n+p -> p+n is discussed taking into account the effects of the proton identity and of the Coulomb and strong interactions of protons in the final state. The distribution of the relative momenta of the protons is found in the framework of the impulse approach. It is shown that the use of polarized initial deuterons and protons allows one to separate two spin-dependent terms in the amplitude of the charge transfer reaction n+p -> p+n at zero angle and to determine their phase difference. The influence of the deuteron d-wave state is investigated.