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arXiv · hep-ph/0110077

Thermal fluctuations in the interacting pion gas

M. Stephanov
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Abstract

We derive the two-particle fluctuation correlator in a thermal gas of pi-mesons to the lowest order in an interaction due to a resonance exchange. A diagrammatic technique is used. We discuss how this result can be applied to event-by-event fluctuations in heavy-ion collisions, in particular, to search for the critical point of QCD. As a practical example, we determine the shape of the rapidity correlator.

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M. Stephanov. 2001-10-05. Thermal fluctuations in the interacting pion gas. https://doi.org/10.1103/physrevd.65.096008

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