Energetic Cosmic Rays observed by the resonant gravitational wave detector NAUTILUS

TL;DR

This paper reports the detection of cosmic ray showers by the NAUTILUS gravitational wave detector, revealing unexpectedly large signals that suggest novel interactions or particles, differing from traditional particle detection methods.

Contribution

It demonstrates the use of a resonant mass gravitational wave detector as a particle detector, revealing unexpected cosmic ray interactions and potential new physics.

Findings

Detected large signals from cosmic ray showers in NAUTILUS

Observed energy releases up to 87 TeV in the detector

Signals exceed expectations from known cosmic ray interactions

Abstract

Cosmic ray showers interacting with the resonant mass gravitational wave antenna NAUTILUS have been detected. The experimental results show large signals at a rate much greater than expected. The largest signal corresponds to an energy release in NAUTILUS of 87 TeV. We remark that a resonant mass gravitational wave detector used as particle detector has characteristics different from the usual particle detectors, and it could detect new features of cosmic rays. Among several possibilities, one can invoke unexpected behaviour of superconducting Aluminium as particle detector, producing enhanced signals, the excitation of non-elastic modes with large energy release or anomalies in cosmic rays (for instance, the showers might include exotic particles as nuclearites or Q-balls). Suggestions for explaining these observations are solicited.