# On resonance contribution to balance functions

## TL;DR

This paper presents an analytical method to remove the influence of neutral resonance decays from charge-balance functions in hadronic collisions, improving the interpretation of experimental data.

## Contribution

It introduces a novel analytical technique to isolate resonance contributions in balance functions and tests its effectiveness using PYTHIA simulations.

## Key findings

- The removal procedure accurately isolates resonance effects in simulated data.
- The method has potential applications in analyzing real experimental data.
- Resonance decay contributions significantly affect balance function measurements.

## Abstract

It is known that resonance decays influence the shape of the charge-balance functions measured in hadronic collisions. That is reflected in their rapidity and azimuthal widths and the integral, and therefore has consequences for different model interpretations. In this paper, we show that the contribution from neutral resonance decays can be removed from the balance function in an analytical way, and test the performance of the removal procedure with PYTHIA events. Prospects for applications of the procedure to real data analysis of balance functions are also discussed.