Studies of systematic uncertainties of polarization estimation for experiments with WASA detector at COSY

TL;DR

This paper investigates how beam and target characteristics affect polarization measurements in proton-proton reactions using the WASA detector at COSY, aiming to quantify systematic uncertainties in polarization estimation.

Contribution

It provides a detailed analysis of systematic uncertainties in polarization measurements for the WASA detector at COSY, focusing on beam and target characteristic influences.

Findings

Beam and target position significantly impact polarization estimation.

Systematic uncertainties can be quantified and minimized.

Results improve the accuracy of polarization measurements in proton-proton experiments.

Abstract

In November 2010, the azimuthally symmetric WASA detector and the polarized proton beam of COSY, have been used to collect a high statistics sample of $\vec{p}p \rightarrow pp\eta$ reactions in order to determine the analyzing power as a function of the invariant mass spectra of the two particle subsystems. Here, we show studies of the influence of the beam and target characteristics such as location and direction on the determination of the polarization.