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arXiv · 1505.03133

Renormalization scheme dependence of the two-loop QCD corrections to the neutral Higgs-boson masses in the MSSM

S. Borowka·T. Hahn·S. Heinemeyer·G. Heinrich·W. Hollik
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Abstract

Reaching a theoretical accuracy in the prediction of the lightest MSSM Higgs-boson mass, M_h, at the level of the current experimental precision requires the inclusion of momentum-dependent contributions at the two-loop level. Recently two groups presented the two-loop QCD momentum-dependent corrections to Mh [1,2], using a hybrid on-shell--DRbar scheme, with apparently different results. We show that the differences can be traced back to a different renormalization of the top-quark mass, and that the claim in [2] of an inconsistency in [1] is incorrect. We furthermore compare consistently the results for M_h obtained with the top-quark mass renormalized on-shell and DRbar. The latter calculation has been added to the FeynHiggs package and can be used to estimate missing higher-order corrections beyond the two-loop level.

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S. Borowka, T. Hahn, S. Heinemeyer, G. Heinrich, W. Hollik. 2015-05-12. Renormalization scheme dependence of the two-loop QCD corrections to the neutral Higgs-boson masses in the MSSM. https://doi.org/10.1140/epjc%2Fs10052-015-3648-6

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