# The method of mixed events for higher cumulants of conserved charges

## TL;DR

This paper introduces and evaluates four methods for constructing mixed event samples to accurately estimate non-critical background effects in higher cumulants of conserved charges, finding the most random approach most effective.

## Contribution

The paper proposes four novel methods for mixed event construction and identifies the most random method as superior for background estimation in cumulant analysis.

## Key findings

- Most random method outperforms conventional approaches
- Four methods are systematically compared for effectiveness
- The approach improves background estimation accuracy

## Abstract

Higher cumulants of conserved charges are sensitive observables of quantum chromodynamics phase transitions. The sample of mixed events provides a background to estimate non-critical effects of cumulants. Four possible methods for constructing the sample of mixed events are suggested. The effectiveness of each method is examined. It is showed that the method of most random or least constrain is the best, rather than the conventional method.