# SAIP2013

8-12 July 2013
Africa/Johannesburg timezone
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# Analysis of the Tsallis distribution and it's applicability to high energy physics

Presented by Andile WHITEHEAD on 10 Jul 2013 from 17:40 to 18:40
Type: Poster Presentation
Session: Poster2
Track: Track B - Nuclear, Particle and Radiation Physics

## Abstract

The region of soft collisions in nucleon-nucleon interactions occurs in the region of non-perturbative QCD. As such, there are numerous phenomological models present which attempt to describe various aspects of these collisions. The transverse momenta, distributions for charged particles at $\sqrt{s}=900$GeV, and $K$ and $\phi$ particles at $\sqrt{s}=7$TeV, for p-p collisions obtained from the ALICE experiment at the LHC were fitted using the Tsallis distribution using three parameters, namely T, q and R. The fits performed to these sets of data were found to be extremely satisfactory. However for Pb-Pb collisions the Tsallis distribution did not perform as well due to the neccesity to incorporate hydrodynamical considerations related to heavy-ion collisions, which are not incorporated in the distribution.

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## Supervisor

Professor Jean Cleymans

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