Although supersymmetry has not been seen directly by experiment, there are powerful physics reasons to suspect that it should be an ingredient of nature and that superpartner masses should be somewhat near the weak scale. I present an argument that if we dismiss our ordinary intuition of fine-tuning, and focus entirely on more concrete physics issues, the PeV scale might be the best place for supersymmetry. PeV-scale supersymmetry admits gauge coupling unification, predicts a Higgs mass between 125 GeV and 155 GeV, and generally disallows flavor changing neutral currents and CP-violating effects in conflict with current experiment. The PeV scale is motivated independently by dark matter and neutrino mass considerations.

• Received 24 November 2004

DOI:https://doi.org/10.1103/PhysRevD.71.015013