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arXiv · 1311.1663

Implications of LHC search results on the W boson mass prediction in the MSSM

S. Heinemeyer·W. Hollik·G. Weiglein·L. Zeune
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Abstract

We present the currently most precise W boson mass (M_W) prediction in the Minimal Supersymmetric Standard Model (MSSM) and discuss how it is affected by recent results from the LHC. The evaluation includes the full one-loop result and all known higher order corrections of SM and SUSY type. We show the MSSM prediction in the M_W-m_t plane, taking into account constraints from Higgs and SUSY searches. We point out that even if stops and sbottoms are heavy, relatively large SUSY contributions to M_W are possible if either charginos, neutralinos or sleptons are light. In particular we analyze the effect on the M_W prediction of the Higgs signal at about 125.6 GeV, which within the MSSM can in principle be interpreted as the light or the heavy CP-even Higgs boson. For both interpretations the predicted MSSM region for M_W is in good agreement with the experimental measurement. We furthermore discuss the impact of possible future LHC results in the stop sector on the M_W prediction, considering both the cases of improved limits and of the detection of a scalar top quark.

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S. Heinemeyer, W. Hollik, G. Weiglein, L. Zeune. 2013-11-07. Implications of LHC search results on the W boson mass prediction in the MSSM. https://doi.org/10.1007/jhep12(2013)084

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