PT Journal
AU van Beekveld, M
   Caron, S
   Ruiz de Austri, R
TI The current status of fine-tuning in supersymmetry
SO Journal of High Energy Physics
JI J. High Energy Phys.
PY 2020
BP 147
EP 41pp
VL 01
IS 1
DI 10.1007/JHEP01(2020)147
LA English
DE Supersymmetry Phenomenology
AB In this paper, we minimize and compare two different fine-tuning measures in four high-scale supersymmetric models that are embedded in the MSSM. In addition, we determine the impact of current and future dark matter direct detection and collider experiments on the fine-tuning. We then compare the low-scale electroweak measure with the high-scale Barbieri-Giudice measure. We find that they reduce to the same value when the higgsino parameter drives the degree of fine-tuning. We also find spectra where the high-scale measure turns out to be lower than the low-scale measure. Depending on the high-scale model and fine-tuning definition, we find a minimal fine-tuning of 3-38 (corresponding to O(10-1)%) for the low-scale measure, and 63-571 (corresponding to O(1-0.1)%) for the high-scale measure. We stress that it is too early to conclude on the fate of supersymmetry, based only on the fine-tuning paradigm.
ER