`Particle Cosmology and Phenomenology - Related aspects of D3/D7 mu-Split SUSY'
Abstract:
I discuss a phenomenological N=1 supergravity model and its local type IIB
string-theoretic realization involving a space-time filling D3-brane and fluxed
stacks of D7-branes wrapping a four-cycle in the large volume limit of a
Swiss-Cheese Calabi-Yau which naturally realizes a scenario involving heavy
sleptons, squarks, Higgsino, gauginos and neutralinos and the LSP - gravitino -
along with one light Higgs and leptons and quarks; this is referred to as D3/D7
mu-Split-Like SUSY. Arguments are given in favor of the gravitino being a
viable DM candidate consistent with BBN constraints and yielding the correct
relic abundance (assuming a non-thermal production). We also show the
possibility of generating electron/neutron EDMs at one- and two-loop levels
consistent with experimental expectations in the same setup.