Luminosity determination for the deutron-deutron reactions using free and quasi-free reactions with WASA-at-COSY detector

TL;DR

This paper presents two methods for determining luminosity in deuteron-deuteron reactions using the WASA-at-COSY detector, accounting for beam momentum variation during ramped beam experiments.

Contribution

It introduces and compares two luminosity determination methods tailored for ramped beam experiments with the WASA detector.

Findings

Successful application of the methods to the WASA experiment data.

Quantitative assessment of luminosity variation with beam momentum.

Enhanced accuracy in luminosity measurement for quasi-free reactions.

Abstract

Two methods of the luminosity determination for the experiment performed by WASA collaboration to search for $^{4} {-0.03cm}{He}$-$\eta$ bound state are presented. During the measurement the technique of continous change of the beam momentum in one accelerator cycle (called ramped beam) was applied. This imposes the requirement to determine not only the total integrated luminosity, but also its variation as a function of the beam momentum.