Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2011-05-18
Phys.Lett.B704:56-61,2011
Physics
High Energy Physics
High Energy Physics - Phenomenology
6 pages, 3 figs, V2 has additional comments
Scientific paper
10.1016/j.physletb.2011.08.063
We point out that in theories where the gravitino mass, $M_{3/2}$, is in the range (10-50)TeV, with soft-breaking scalar masses and trilinear couplings of the same order, there exists a robust region of parameter space where the conditions for electroweak symmetry breaking (EWSB) are satisfied without large imposed cancellations. Compactified string/M-theory with stabilized moduli that satisfy cosmological constraints generically require a gravitino mass greater than about 30 TeV and provide the natural explanation for this phenomenon. We find that even though scalar masses and trilinear couplings (and the soft-breaking $B$ parameter) are of order (10-50)TeV, the Higgs vev takes its expected value and the $\mu$ parameter is naturally of order a TeV. The mechanism provides a natural solution to the cosmological moduli and gravitino problems with EWSB.
Feldman Daniel
Kane Gordon
Kuflik Eric
Lu Ran
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