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Propagation of supersymmetric charged sleptons at high energies

M. H. Reno·I. Sarcevic·S. Su
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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.

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M. H. Reno, I. Sarcevic, S. Su. 2005-06-30. Propagation of supersymmetric charged sleptons at high energies. https://doi.org/10.1016/j.astropartphys.2005.06.002

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