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Brustein Ramy: Particle physics & Cosmology in flux compactifications
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A novel view of the space of solutions of string theory
is starting to emerge, "the stringy landscape" in which there is a very
large number of candidate classical solutions - perhaps on the
order of 10^{500}. Only a very small fraction of these (less than 10^{-120})
would have a small enough cosmological constant and will live long
enough to be acceptable, and when additional conditions such as
cosmological viability and particle physics constraints are added, this
number will no doubt be substantially reduced. However, it is still
likely to be extremely large.
Our
main objective is to determine whether any of the solutions in the
landscape is an acceptable solution that can be used as a viable model
of cosmology and particle physics. We will need to determine a
meaningful set of prior assumptions that can define what constitutes an
acceptable solution and a viable model and determine their
phenomenological consequences. |