$\chi_{cJ}$ Polarization in Polarized Proton-Proton Collisions at RHIC

TL;DR

This paper investigates the polarization states of $\\chi_{cJ}$ particles produced in polarized proton-proton collisions at RHIC energies, using NRQCD, and predicts their rapidity distributions and spin asymmetries.

Contribution

It provides the first detailed predictions of polarized $\\chi_{cJ}$ production and spin asymmetries at RHIC energies within the NRQCD framework.

Findings

Rapidity distributions for polarized $\\chi_{cJ}$ production are calculated.

Spin asymmetries for $\\chi_{cJ}$ production are predicted.

Results are within the PHENIX detector acceptance range.

Abstract

We study inclusive $\chi_{cJ}$ production with definite polarizations in polarized proton-proton collisions at $\sqrt{s}$ = 200 GeV and 500 GeV at RHIC by using non-relativistic QCD (NRQCD) color-octet mechanism. We present results of rapidity distribution of $\chi_{c0}$, $\chi_{c1}$ and $\chi_{c2}$ production with specific polarizations in polarized p-p collisions at RHIC within the PHENIX detector acceptance range. We also present the corresponding results for the spin asymmetries.