Spin-dependent Forward Particle Correlations in p+p Collisions at $\sqrt{s} = 200$ GeV

TL;DR

This paper discusses measurements of spin-dependent particle correlations in polarized proton collisions at 200 GeV, aiming to understand the origins of forward pi0 asymmetries using advanced forward detectors.

Contribution

It presents new measurements of transverse single spin asymmetries in forward pi0 production with enhanced detector acceptance for correlation studies.

Findings

Initial analysis results on spin asymmetries are reported.

Enhanced detector coverage improves the ability to study correlation contributions.

The study advances understanding of spin effects in forward particle production.

Abstract

The STAR collaboration has reported precision measurements of the transverse single spin asymmetries for the production of the $\pi^0$ mesons from polarized proton collisions at $\sqrt{s} = 200$ GeV. These measurements were obtained using modular forward detectors. The Forward Meson Spectrometer (FMS), covering a region of $2.5 < \eta < 4.0$, and its engineering prototype, provide increased acceptance, as needed for spin-dependent correlation studies that could disentangle contributions to the forward \$pi^0$ asymmetries. We report on the status of the analysis.