Is there a new physics between electroweak and Planck scales?

Abstract

We argue that there may be no intermediate particle physics energy scale between the Planck mass $M_{Pl}\sim 10^{19}$ GeV and the electroweak scale $M_W\sim 100$ GeV. At the same time, the number of problems of the Standard Model (neutrino masses and oscillations, dark matter, baryon asymmetry of the Universe, strong CP-problem, gauge coupling unification, inflation) could find their solution at $M_{Pl}$ or $M_W$. The crucial experimental predictions of this point of view are outlined.

10 pages, talks given at the Workshop on Astroparticle Physics: Current Issues (APCI07), Budapest, Hungary, June 21-25, 2007 and at the 11th Paris Cosmology Colloquium 2007, Paris, France, August 16-18, 2007

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