Sommaire:

We present a formulation of naturalness made in the framework of Bayesian statistics, which unravels the conceptual problems related to previous approaches. Among other things, the relative interpretation of the measure of naturalness turns out to be unambiguously established by Jereys' scale. Also, the usual sensitivity formulation (socalled Barbieri-Giudice measure) appears to be embedded in our formulation under an extended form. We derive the general sensitivity formula applicable to an arbitrary number of observables. To illustrate our results, we work out, among other things, the map of combined ne-tuning associated to the gauge hierarchy problem and neutralino dark matter in a classic supersymmetric model.

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Pour plus d'informations, merci de contacter Frigerio M.