How to determine nucleon polarization at existing collider experiments?

TL;DR

This paper introduces a new method to measure nucleon spin polarization in electron-positron collider experiments using existing detectors, enabling detailed analysis of nucleon properties without additional hardware.

Contribution

The paper presents a novel approach that leverages existing tracking devices as a large-acceptance polarimeter to measure nucleon polarization.

Findings

Allows polarization measurement without hardware upgrades

Provides a more complete understanding of nucleon final states

Potentially enables determination of nucleon electromagnetic form factors

Abstract

We propose a novel approach to measure spin polarization of nucleons produced in electron--positron collisions. Using existing tracking devices and supporting structure material, general-purpose spectrometers can be utilized as a large-acceptance polarimeter without hardware upgrade. With the proposed approach, the spin polarization of nucleons can be revealed, providing a complementary and accurate description of the final-state particles. This could have far-reaching implications, such as enabling the complete determination of the time-like electromagnetic form factors of nucleons.