Mirage mediation from the landscape
Howard Baer, Vernon Barger, Dibyashree Sengupta

TL;DR
This paper explores how string theory landscape considerations favor a specific SUSY breaking scenario called mirage mediation, predicting particular sparticle spectra and collider signatures.
Contribution
It provides a detailed analysis of mirage mediation arising from the string landscape, including predicted mass spectra and collider phenomenology.
Findings
Predicted a compressed gaugino spectrum with higgsino-like LSP.
Most probable mirage scale around 10^{13}-10^{14} GeV.
SUSY signals expected at high-luminosity LHC via higgsino pair production.
Abstract
Rather general considerations from the string theory landscape suggest a statistical preference within the multiverse for soft SUSY breaking terms as large as possible subject to a pocket universe value for the weak scale not greater than a factor of 2-5 from our measured value. Within the gravity/moduli-mediated SUSY breaking framework, the Higgs mass is pulled to m_h~ 125 GeV while first/second generation scalars are pulled to tens of TeV scale and gauginos and third generation scalars remain at the few TeV range. In this case, one then expects comparable moduli- and anomaly-mediated contributions to soft terms, leading to mirage mediation. For an assumed stringy natural value of the SUSY mu parameter, we evaluate predicted sparticle mass spectra for mirage mediation from a statistical scan of the string landscape. We then expect a compressed spectrum of gauginos along with a…
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