A nonextensive thermodynamical equilibrium approach in $e^+ e^- \to hadrons$

Details A nonextensive thermodynamical equilibrium approach in $e^+ e^- \to hadrons$ A nonextensive thermodynamical equilibrium approach in $e^+ e^- \to hadrons$

1999-05-05

arxiv.org/abs/hep-ph/9905255v2

Physica A286:156-163,2000

Physics

High Energy Physics

High Energy Physics - Phenomenology

9 pages, 2 eps figures

Scientific paper

10.1016/S0378-4371(00)00368-X

We show that the inclusion of long distance effect, expected in strong interactions, through a nonextensive thermodynamical approach is able to explain the experimental distribution of the transverse momentum of the hadrons with respect to the jet axis ($p_{t}$) $e^+ e^- \to hadron$ reaction. The observed deviation from the exponential behavior, predicted by the Boltzmann-Gibbs thermodynamical treatment, is automatically recovered by the nonextensive Tsallis statistics used here. We fitted the observed $p_{t}$ spectrum in the range of 14 GeV to 161 GeV and obtained, besides a good fit, the theoretical important fact that the temperature becomes independent of the primary energy.

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