Speaker
Ms
Irene Valenzuela
(IFT UAM/CSIC)
Description
We consider a scheme in which SUSY is broken at a large scale $M_{SS}$ well above the electroweak scale $M_{EW}$, such that it does not provide a solution to the hierarchy problem but rather stabilizes the SM vacuum. Under standard unification assumptions, we compute the Higgs mass as a function of the SUSY breaking scale, obtaining for $M_{SS}\geq 10^{10}$ GeV a very constrained result: $m_H = 126 ± 3$ GeV, consistent with CMS and ATLAS results. This large scale for $M_{SS}$ can be motivated by the recent BICEP2 results. We explore the possible value of $M_{SS}$ consistent with gauge coupling unification and closed string fluxes as the main source of SUSY breaking, in the context of SU(5) F-theory GUT’s. These two requirements fix $M_{SS}$ at an intermediate scale around $10^{10}$ GeV. We also study how the fine-tuning of a light SM Higgs constrains the structure of soft SUSY breaking terms.
Authors
Ms
Irene Valenzuela
(IFT UAM/CSIC)
Prof.
Luis Ibanez
(IFT UAM/CSIC)
