Stau Search in IceCube

Jan-Henrik Schmidt-Dencker, Stephan Meighen-Berger, Christian Haack, Rasha Abbasi, Markus Ackermann, Jenni Adams, Juanan Aguilar, M. Ahlers, Maryon Ahrens, Cyril Martin Alispach, Antonio Augusto Alves Junior, Najia Moureen Binte Amin (+371 others)
2021 Proceedings of 37th International Cosmic Ray Conference — PoS(ICRC2021)   unpublished
The tau lepton's supersymmetric partner, the stau, appears in some models as the next-to-lightest supersymmetric particle. Their deacy process into the lightest superpartner is usually suppressed by supersymmetry breaking, which makes it a long-lived particle. In this scenario, its signature is a long, minimally ionizing track when traveling through the IceCube detector. Independent of their primary energy, the stau tracks appear like low-energy muons in the detector. A potential signal of
more » ... would thus be an excess over muon tracks induced by atmospheric muon neutrinos. Our analysis focuses on the region around the horizon as here the ratio between stau signal and atmospheric background is largest. We will present the first sensitivity to constrain the stau mass using IceCube and demonstrate the potential of this analysis with future improvements.
doi:10.22323/1.395.1117 fatcat:7opa5knb75aczm2vfunuzm4zy4