Breakup corrections to the ${}^3$He beam polarization measurements at the future BNL Electron Ion Collider

Abstract

Requirements for hadron polarimetry at the future Electron-Ion Collider (EIC) include measurements of absolute ${}^3\text{He}(h)$ beam polarization with systematic uncertainties better than ${\sigma }_P^{\text{syst}}/P\lesssim 1\%$. Due to the successful use, since 2005, of the polarized hydrogen jet target polarimeter (HJET) to measure proton beam polarization at the Relativistic Heavy Ion Collider (RHIC), the HJET technique promises to be suitable for the ${}^3\text{He}$ polarimetry at EIC. For that, however, one needs to know the ratio of the $h^{\uparrow }p$ and $p^{\uparrow }h$ analyzing powers. For elastic scattering, this ratio can be evaluated with sufficient accuracy if $p^{\uparrow }p$ analyzing power is precisely known. In this paper, the deuteron beam data acquired at HJET in RHIC Run 16 was used to evaluate corrections to the measured helion beam polarization due to the ${}^3\text{He}$ breakup. The breakup effect was found to be negligible if the ratio of the beam and target (jet) single spin asymmetries are concurrently measured to determine the ${}^3\text{He}$ beam polarization.

10 pages, 6 figures

References in corpus (5)

• Precision Small Scattering Angle Measurements of Elastic Proton-Proton Single and Double Spin Analyzing Powers at the RHIC Hydrogen Jet Polarimeter
• Systematic error analysis in the absolute hydrogen gas jet polarimeter at RHIC
• Corrections to the Elastic Proton-Proton Analyzing Power Parametrization at High Energies
• Coulomb phase corrections to the transverse analyzing power $A_N(t)$ in high energy forward proton-proton scattering
• Feasibility study for precisely measuring the EIC ${}^3$He beam polarization with the Polarized Atomic Hydrogen Gas Jet Target polarimeter at RHIC

Cited by in corpus (3)

• Feasibility study for precisely measuring the EIC ${}^3$He beam polarization with the Polarized Atomic Hydrogen Gas Jet Target polarimeter at RHIC
• Polarization Measurements of $p^{\uparrow }$ and ${}^3$He${}^{\uparrow }$ Beams at RHIC and Future EIC Using the Polarized Atomic Hydrogen Gas Jet Target
• Breakup corrections to spin asymmetries in the ${}^3$He beam polarization measurements with the Polarized Atomic Hydrogen Gas Jet Target