Year: 2026
Type: preprint
Abstract: Relevant IceCube recent data for astrophysical neutrinos are analyzed. Similarly to cosmic rays and proton-proton LHC collisions, the corresponding spectra are satisfactorily described, for the entire interval of measured energies, through $q$-Gaussians. This fact reinforces the already available evidence that nonadditive entropies (either of the $S_q$ class or of the $S_δ$ one, or even alternative ones) appear to play a crucial role in systems such as black holes and related cosmological phenomena (e.g., dark energy). The IceCube data yield high values for the momenta-distribution nonadditive index ($q \simeq 1.6$, hence $q_{energy} \simeq 1.3$), to be compared with the cosmic rays values ($q_{energy} \simeq 1.2$) and the LHC values ($q_{energy} \simeq 1.1$). This fact neatly indicates very-long-ranged space-time correlations. The detailed associated physical mechanisms remain, at the present stage, as an instigating open issue.
Source: arXiv (Cornell University)
Authors: Tsallis, Constantino, Tirnakli, Ugur
Institution: İzmir University of Economics
Language: English
Subfield: Statistical and Nonlinear Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W7221800215