Phenomenology of an Intermediate String Scale

por Dr. B.C. Allanach (Univ. of Cambridge)

jueves 10 feb. 2000 11:30 → 12:30 Europe/Madrid

Sala de Juntas del IFIC (Edf. Institutos de Investigación)

A recent proposal by Burgess, Ibanez and Quevedo sets the string scale at an intermediate scale of approximately 10^11 GeV. This can explain the weak-Planck scale hierarchy without unnaturally small dimensionless numbers or large hierarchies in fundamental dimensionful scales. In this talk we review new phenomenological aspects and constraints from lowering the string unification scale to 10^11 GeV, such as Yukawa unification, spectra, radiative electroweak symmetry breaking and charge and colour breaking minima.