Generalized statistical mechanics of cosmic rays

Details Generalized statistical mechanics of cosmic rays Generalized statistical mechanics of cosmic rays

2003-01-20

arxiv.org/abs/cond-mat/0301354v1

Physica A331 (2004) 173-181

Physics

Condensed Matter

Statistical Mechanics

10 pages, 2 figures

Scientific paper

We consider a generalized statistical mechanics model for the creation process of cosmic rays which takes into account local temperature fluctuations. This model yields Tsallis statistics for the cosmic ray spectrum. It predicts an entropic index q given by q=11/9 at largest energies (equivalent to a spectral index of alpha=5/2), and an effective temperature given by (5/9)T_H, where kT_H approximately equal to 180 MeV is the Hagedorn temperature measured in collider experiments. Our theoretically obtained formula is in very good agreement with the experimentally measured energy spectrum of primary cosmic rays.

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