Deuteron spin oscillation and rotation as a universal method of the N-N scattering amplitude study

TL;DR

This paper proposes a universal method using deuteron spin oscillation and rotation to directly measure and study the real part of the nucleon-nucleon scattering amplitude across a broad energy spectrum.

Contribution

It introduces a novel approach leveraging deuteron spin effects to investigate N-N scattering amplitudes, including the real part, using Glauber multiscattering theory.

Findings

Deuteron spin oscillation correlates with the real part of the scattering amplitude.

Method enables direct measurement of the real part of N-N scattering amplitude.

Applicable over a broad energy range.

Abstract

We consider the effects of the deuteron spin rotation and oscillations at the matter which is proportional to the real part of the deuteron spin-dependent forward scattering amplitude. That gives a possibility of a direct measurement of this quantity. Spin-dependent forward scattering amplitude of the deuteron on an unpolarized proton is discussed in terms of the Glauber multiscattering theory. This amplitude is determined by the nucleon rescattering, nonsphericity of the deuteron and spin-dependent nucleon-nucleon scattering amplitude. Thus deuteron spin oscillation phenomenon represents a method for N-N scattering amplitude investigation, including its real part, over a broad energy range.