String moduli phenomenology, cosmological history, and LHC physics

por Gordon Kane (University of Michigan)

martes 18 oct. 2011 15:00 → 16:00 Europe/Madrid

Sala Seminarios (Dpto. de Física Teórica (UVEG))

In this talk I show that compactified string theories with broken supersymmetry and with stabilized moduli generically have moduli with masses of order the gravitino mass or less. Then cosmological constraints imply the gravitino and moduli masses are of order 30 TeV or heavier, which implies that the scalar superpartners are also of that order (thus too heavy to directly observe), that there is a single light higgs boson of approximately known mass, and that the universe has a non-thermal cosmological history. This in turn suggests that the LSP is wino-like with associated implications. Although the above results hold very generally in string theories, we were led to them from our earlier compactification of M-theory on a G2 manifold, so I will begin the talk with a review of the G2 results, which is currently the compactification with the most successful explanations and predictions.