Higgs diphoton rate and mass enhancement with vector-like leptons and the scale of supersymmetry

Understand

Analysis of contributions from vector-like leptonic supermultiplets to the Higgs diphoton decay rate and to the Higgs boson mass is given.

• Corrections arising from the exchange of the new leptons and their super-partners, as well as their mirrors are computed analytically and numerically.
• We also study the correlation between the enhanced Higgs diphoton rate and the Higgs mass corrections.
• Specifically, we find two branches in the numerical analysis: on the lower branch the diphoton rate enhancement is flat while on the upper branch it has a strong correlation with the Higgs mass enhancement.