Journal article
The price of being SM-like in SUSY
T Gherghetta, B Von Harling, AD Medina, MA Schmidt
Journal of High Energy Physics | Published : 2014
Open access
Abstract
We compute the tuning in supersymmetric models associated with the constraints from collider measurements of the Higgs couplings to fermions and gauge bosons. In supersymmetric models, a CP-even state with SM Higgs couplings mixes with additional, heavier CP-even states, causing deviations in the Higgs couplings from SM values. These deviations are reduced as the heavy states are decoupled with large soft masses, thereby exacerbating the tuning associated with the electroweak scale. This new source of tuning is different from that derived from collider limits on stops, gluinos and Higgsinos. It can be offset with large tan β in the MSSM, however this compensating effect is limited in the NMS..
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Awarded by DOE grant
Funding Acknowledgements
We thank Marco Farina and Sogee Spinner for helpful discussions. This work was supported in part by the Australian Research Council. TG was also supported in part by the DOE grant DE-FG02-94ER-40823. TG and BvH thank the Galileo Galilei Institute for Theoretical Physics in Florence for hospitality and the INFN for partial support during the completion of this work. BvH also thanks the Fine Theoretical Physics Institute at the University of Minnesota for hospitality and partial support. We acknowledge the use of matplotlib [34] and ipython [35].