Radiative natural SUSY with a 125 GeV Higgs boson

TL;DR

This paper demonstrates that radiative effects can produce a natural SUSY spectrum with a 125 GeV Higgs, light Higgsinos, and heavy scalars, maintaining low electroweak fine-tuning.

Contribution

It introduces a method to generate a natural SUSY spectrum radiatively from multi-TeV scalar masses, accommodating a 125 GeV Higgs with low EWFT.

Findings

Radiative generation of natural SUSY spectra is feasible.

Heavy third-generation squarks can be compatible with low EWFT.

A 125 GeV Higgs can be achieved in this framework.

Abstract

It has been argued that requiring low electroweak fine-tuning (EWFT) along with a (partial) decoupling solution to the SUSY flavor and CP problems leads to a sparticle mass spectra characterized by light Higgsinos at 100-300 GeV, sub-TeV third generation scalars, gluinos at a few TeV and multi-TeV first/second generation scalars (natural SUSY). We show that by starting with multi-TeV first/second and third generation scalars and trilinear soft breaking terms, the natural SUSY spectrum can be generated radiatively via renormalization group running effects. Using the complete 1-loop effective potential to calculate EWFT, significantly heavier third generation squarks can be allowed even with low EWFT. The large negative trilinear term and heavier top squarks allow for a light Higgs scalar in the ~125 GeV regime.