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T: Fachverband Teilchenphysik

T 60: Theorie: Higgs / BSM I

T 60.6: Vortrag

Mittwoch, 21. März 2018, 17:45–18:00, Z6 - SR 1.010

Precision prediction of the Higgs mass in the MSSM at three-loop level — Robert V. Harlander, •Jonas Klappert, and Alexander Voigt — RWTH Aachen University, Aachen, Germany

In the MSSM, sizable corrections to the light Higgs mass can be observed up to three-loop order. Since the latter are not implemented in most spectrum generators, we present a C++ implementation of these contributions into the package Himalaya. Himalaya can be linked to existing codes, thus allowing for the elevation of these codes to the three-loop level. We present the first full DR study of the three-loop effects by linking Himalaya to FlexibleSUSY and compare our results to fixed-order two-loop calculations, as well as to the result based on an EFT approach. We also present a result for the Higgs mass with consistent matching between the three-loop fixed-order expression and an EFT approach.