The same key to different doors - temperature puzzles

TL;DR

This paper critically examines the use of temperature as a model-dependent parameter in describing particle production in high energy collisions, emphasizing its utility and limitations.

Contribution

It provides a critical analysis of the temperature concept in particle physics, highlighting its model dependence and potential pitfalls.

Findings

Temperature is a useful but model-dependent parameter.

Thermal models are effective in describing particle production.

Caution is needed when interpreting temperature in these models.

Abstract

The notion of temperature in many body elementary particle processes is in a common use for decades. Thermal models have become simple and universal effective tools to describe particle production -- not only in high energy heavy ion collisions but also in high energy elementary particle collisions. We perform a critical analysis of the temperature concepts in such processes. Although the temperature concept is a very useful tool, nevertheless it should be used with the care, taking into account that usually it is just model dependent fitted parameter.