# Moments of multiplicity distributions using Tsallis statistics in leptonic and hadronic collisions

## TL;DR

This paper extends the application of Tsallis statistics to analyze moments of charged particle multiplicity distributions in leptonic and hadronic collisions across a wide energy range, showing good agreement with experimental data and making predictions for future energies.

## Contribution

It applies Tsallis $q$-statistics to calculate moments and mean multiplicities in $e^+e^-$ and $pp$ collisions, extending previous work to new energies and pseudorapidity intervals.

## Key findings

- Tsallis model accurately predicts moments and mean multiplicities.
- Good agreement with experimental data across energies.
- Predictions made for future collider energies.

## Abstract

Moments play a crucial role in investigating the characteristics of charged particle multiplicities in high energy interactions. The success of any model which describes the multiplicity data can be understood well by studying the normalised and factorial moments of that distribution.~The Tsallis model is one of the most successful models which describes the multiplicity spectra, transverse momentum ($p_T$) spectra very precisely in high energy interactions.~In our previous work we have used the Tsallis $q$-statistics to describe the multiplicity distributions in leptonic and hadronic collisions at various energies ranging from 14 GeV to 7 TeV.~In the present study we have extended our analysis for calculating the moments using the Tsallis model for $e^+e^-$ interactions at $\sqrt{s}$ = 91 to 206 GeV from the LEP data and for $pp$ interactions at $\sqrt{s}$ = 0.9 to 7 TeV in various pseudo-rapidity intervals from the CMS data at LHC. By using the Tsallis model we have also calculated the average charged multiplicity and its dependence on energy.~It is found that the moments and the mean multiplicities predicted by the Tsallis model are in good agreement with the experimental values.~We have also predicted the mean multiplicity at $\sqrt{s}$ = 500 GeV for $e^+e^-$ collisions and at $\sqrt{s}$ = 14 TeV for $pp$ collisions in extreme pseudo-rapidity interval, $|\eta|$ $<$ 2.4