Sommaire:

The strength of the electroweak symmetry breaking at high temperatures of the early Universe could substantially differ from the present day value. The Standard Model predicts the electroweak symmetry to get restored above the temperatures of about 160 GeV. I will discuss the recently proposed scenarios where the situation is reversed, and the breaking survives even at high temperatures. I will also discuss the implications of such a behaviour for one of the popular scenarios explaining the matter-antimatter asymmetry -- electroweak baryogenesis.

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