# The analysing powers in proton-deuteron elastic scattering

## TL;DR

This paper investigates how analyzing powers in proton-deuteron elastic scattering at small angles reveal subtle effects in theoretical models, with data supporting a refined Glauber theory approach.

## Contribution

It demonstrates the sensitivity of analyzing power ratios to specific theoretical effects and validates a refined Glauber model against experimental data.

## Key findings

- Analyzing power ratios are sensitive to transverse spin-spin effects and double-scattering corrections.
- Data agree with predictions from a refined Glauber theory model.
- Less sensitivity observed to spin-orbit and binding effects.

## Abstract

It is shown that the ratio of the deuteron and proton analysing powers in proton-deuteron elastic scattering at small angles is sensitive to subtle effects in a theoretical description. These include the transverse spin-spin term in the elementary nucleon-nucleon amplitudes and double-scattering corrections. On the other hand there is far less sensitivity to the spin-orbit amplitude and to binding or other kinematic effects associated with the use of the deuteron, as either target or projectile. The available data are in agreement with the results of a refined Glauber theory model.