# Efficiency correction for cumulants of multiplicity distributions based on track-by-track efficiency

## TL;DR

This paper introduces a simplified method for correcting higher order cumulants in heavy-ion collision experiments using track-by-track efficiency, reducing bias, computational cost, and dependence on particle spectra.

## Contribution

It presents a novel efficiency correction procedure that eliminates bias from phase space binning and reduces computational effort in cumulant analysis.

## Key findings

- Bias from phase space binning is eliminated.
- Computational time for bootstrap error estimation is reduced.
- Correction method does not require particle spectra.

## Abstract

We propose a simplified procedure for the experimental application of the efficiency correction on higher order cumulants in heavy-ion collisions. By using the track-by-track efficiency, we can eliminate possible bias arising from the average efficiencies calculated within the arbitrary binning of the phase space. Furthermore, the corrected particle spectra is no longer necessary for the average efficiency estimation and the time cost for the calculation of bootstrap statistical error can be significantly reduced.