Sommaire:

Even if theoretically discovered long ago, the dilaton, the Goldstone-boson of spontaneous breaking of scale (conformal) invariance, is still subject of active investigations. These not only concern its theoretical applications, such as the a-theorem in four dimensions, but also phenomenological ones. In this talk I will review some of the potential manifestations of the dilaton in Nature: at the electroweak scale in relation to the recently discovered Higgs-like particle, and in cosmology owing to its connection with the energy of the vacuum.

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