Weak interactions of supersymmetric staus at high energies

Abstract

Neutrino telescopes may have the potential to detect the quasi-stable staus predicted by supersymmetric models. Detection depends on stau electromagnetic energy loss and weak interactions. We present results for the weak interaction contribution to the energy loss of high energy staus as they pass through rock. We show that the neutral current weak interaction contribution to the energy loss increases with energy, but it is much smaller than the photonuclear energy loss, however, the charged current contribution may become the dominant process above the energy of $\sim 10^9$ GeV, depending on the parameters of the model. As a consequence, the stau range may be reduced above $\sim 10^9$ GeV as compared to the range neglecting weak interactions. We contrast this with the tau range which is barely changed with the inclusion of charged current interactions.

7 pages, 8 figures, version to be published

References in corpus (1)

• Long-Lived Staus at Neutrino Telescopes

Cited by in corpus (7)

• Dark Matter Candidates from Particle Physics and Methods of Detection
• Probing new physics with long-lived charged particles produced by atmospheric and astrophysical neutrinos
• Long-lived Staus from Cosmic Rays
• New physics from ultrahigh energy cosmic rays
• Direct Detection of Kaluza-Klein Particles in Neutrino Telescopes
• New Constraints on Supersymmetry Using Neutrino Telescopes
• Cosmogenic neutrinos and quasi-stable supersymmetric particle production