Long-lived Staus from Cosmic Rays

Understand

The collision of a high energy cosmic ray with a nucleon in the upper atmosphere could produce long-lived heavy particles.

• Such particles would be very penetrating, since the energy loss in matter scales as the inverse mass, and could reach a neutrino telescope like IceCube from large zenith angles.
• Here we study this possibility and focus on the long-lived stau of SUSY models with a gravitino LSP.
• The signal would be a pair of muon-like parallel tracks separated by 50 meters along the detector.