The Return of the King: No-Scale $\mathcal{F}$-$SU(5)$

Abstract

We revisit the viable parameter space in No-Scale $\mathcal{F}$-$SU(5)$, examining the Grand Unified Theory within the context of the prevailing gluino mass limits established by the LHC. The satisfaction of both the No-Scale boundary condition and the experimentally measured Standard Model (SM) like Higgs boson mass requires a lower limit on the gluino mass in the model space of about 1.9 TeV, which maybe not coincidentally is the current LHC supersymmetry search bound. This offers a plausible explanation as to why a supersymmetry signal has thus far not been observed at the LHC. On the contrary, since the vector-like flippon particles are relatively heavy due to the strict condition that the supersymmetry breaking soft term $B_{\mu }$ must vanish at the unification scale, we also cannot address the recently vanished 750 GeV diphoton resonance at the 13 TeV LHC. Therefore, No-Scale $\mathcal{F}$-$SU(5)$ returns as a King after the spurious 750 GeV diphoton excess was gone with the wind.

arXiv comment9 pages, 3 figures, 1 table. arXiv admin note: text overlap with arXiv:1602.01377

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• Spinning No-Scale $\mathcal{F}$-$SU$(5) in the Right Direction
• Probing the No-Scale $\mathcal{F}$-$SU(5)$ One-Parameter Model via Gluino Searches at the LHC2
• The Heavy Gluino in Natural No-Scale $\mathcal{F}$-$SU$(5)
• Inspiration from Intersecting D-branes: General Supersymmetry Breaking Soft Terms in No-Scale $\mathcal{F}$-$SU(5)$
• Naturalness in D-brane Inspired Models
• General No-Scale Supergravity: An $\mathcal{F}$-$SU(5)$ Tale
• The Right-Handed Slepton Bulk Region for Dark Matter in Generalized No-scale $\mathcal{F}$-$SU(5)$ with Effective Super-Natural Supersymmetry