Propagation of supersymmetric charged sleptons at high energies

Mary Hall Reno, I. Sarcevic, S. Su

Research output: Contribution to journalArticle

23 Scopus citations

Abstract

The potential for neutrino telescopes to discover charged stau production in neutrino-nucleon interactions in Earth depends in part on the stau lifetime and range. In some supersymmetric scenarios, the next lightest supersymmetric particle is a stau with a decay length on the scale of 10 km. We evaluate the electromagnetic energy loss as a function of energy and stau mass. The energy loss parameter β scales as the inverse stau mass for the dominating electromagnetic processes, photonuclear and e+e- pair production. The range can be parameterized as a function of stau mass, initial energy and minimum final energy. In comparison to earlier estimates of the stau range, our results are as much as a factor of two larger, improving the potential for stau discovery in neutrino telescopes.

Original languageEnglish (US)
Pages (from-to)107-115
Number of pages9
JournalAstroparticle Physics
Volume24
Issue number1-2
DOIs
StatePublished - Sep 1 2005

Keywords

  • Electromagnetic interactions
  • Neutrino telescopes
  • Supersymmetry

ASJC Scopus subject areas

  • Astronomy and Astrophysics

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