PoS - Proceedings of Science
Volume 444 - 38th International Cosmic Ray Conference (ICRC2023) - Cosmic-Ray Physics (Indirect, CRI)
Correlation study using RHICf and STAR detectors to understand the finite transverse single spin asymmetry for very forward neutral pion production
L. Seunghwan
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Pre-published on: August 18, 2023
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Particles produced in the very forward region of hadronic collisions can contribute to the investigation of the origin of cosmic rays. In particular, Transverse Single-Spin Asymmetries (TSSA) provide insights for the particle production mechanism in terms of perturbative and non-perturbative strong interaction. The RHICf detector was added to the STAR detector system during the run in 2017 and collected data for polarized $p+p$ collisions at $\sqrt{s}$ = 510 GeV. Previous studies with RHICf showed that asymmetries of the very forward $\pi^{0}$ meson, $A_{\mathrm{N}}$, were observed to be non-zero for values in the range of $\eta > 6$, $p_{\mathrm{T}} < 1$ GeV/$c$. To further understand the origin of this result, we attempt to analyze the correlation between activities of very forward-rapidity and mid-rapidity regions, which are measured by RHICf and STAR detectors, respectively. In these proceedings, we will report the current status and future plan for this analysis.
DOI: https://doi.org/10.22323/1.444.0517
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