Abstract
Intersecting D-brane models in string theory can naturally support the gauge and matter content of left-right symmetric extensions of the Standard Model with gauge symmetry SU(3) c × SU(2) L × SU(2) R × U(1) B−L . Considering such models as candidates for explaining the 2 TeV excesses seen in Run-1 by both ATLAS and CMS, the minimal possible scale of supersymmetry breaking is determined by the requirement of precise one-loop gauge coupling unification. For the vector-like, bifundamental and (anti-)symmetric Higgs content of such brane configurations, this comes out fairly universally at around 19 TeV. For the SU(2) R gauge coupling one finds values 0.48 < g R (M R ) < 0.6. Threshold corrections can potentially lower the scale of supersymmetry breaking.
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Blumenhagen, R. Intersecting branes, SUSY breaking and the 2 TeV excess at the LHC. J. High Energ. Phys. 2016, 39 (2016). https://doi.org/10.1007/JHEP01(2016)039
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DOI: https://doi.org/10.1007/JHEP01(2016)039