Various constraints on BSM physics from extensive air showers and from ultra-high energy gamma-ray and neutrino searches

TL;DR

This paper reviews how ultra-high energy cosmic ray observations constrain physics beyond the Standard Model, including tests of Lorentz invariance, dark matter, early universe phase transitions, and sterile neutrinos, despite limited energy reach compared to colliders.

Contribution

It provides a comprehensive review of constraints on BSM physics derived from extensive air shower data and ultra-high energy gamma-ray and neutrino searches.

Findings

Constraints on Lorentz invariance violations

Limits on dark matter interactions

Bounds on sterile neutrino properties

Abstract

Various phenomena of physics beyond that of the Standard Model could occur at high scale. Ultra-high energy cosmic rays are the only particles available to explore scales above a few dozens of TeV. Although these explorations are much more limited than those carried out with colliders, they provide a series of constraints in several topics such as tests of Lorentz invariance, dark matter, phase transitions in the early universe or sterile neutrinos. Several of these constraints are reviewed in these proceedings of UHECR2024 based on searches for anomalous characteristics in extensive air showers or searches for ultra-high energy gamma rays and neutrinos.