Are heavy scalars natural in minimal supergravity?
Andrea Romanino, Alessandro Strumia
Abstract
It has been recently claimed that very large values of a universal soft mass term m0 for sfermions and higgs bosons become natural when Mtop is close to 175 GeV if tanβ≈ 10. We show that very large values of m0 require accidental cancellations not guaranteed by experimental data or theoretical assumptions, and consequently an unnatural fine-tuning of the parameters.
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