Precision Corrections to Fine Tuning in SUSY

Understand

Requiring that the contributions of supersymmetric particles to the Higgs mass are not highly tuned places upper limits on the masses of superpartners -- in particular the higgsino, stop, and gluino.

• We revisit the details of the tuning calculation and introduce a number of improvements, including RGE resummation, two-loop effects, a proper treatment of UV vs.
• IR masses, and threshold corrections.
• This improved calculation more accurately connects the tuning measure with the physical masses of the superpartners at LHC-accessible energies.