Weak interactions of supersymmetric staus at high energies

Details Weak interactions of supersymmetric staus at high energies Weak interactions of supersymmetric staus at high energies

2006-07-19

arxiv.org/abs/hep-ph/0607216v2

Phys.Rev.D74:115009,2006

Physics

High Energy Physics

High Energy Physics - Phenomenology

7 pages, 8 figures, version to be published

Scientific paper

10.1103/PhysRevD.74.115009

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.

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