High-precision predictions for the light CP-even Higgs Boson Mass of the MSSM
High-precision predictions for the light CP-even Higgs Boson Mass of the MSSM
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DOI：
10.1103/physrevlett.112.141801
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发表时间：
2013-12
期刊：
影响因子：
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通讯作者：
T. Hahn;S. Heinemeyer;W. Hollik;H. Rzehak;G. Weiglein
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文献类型：
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作者：
T. Hahn;S. Heinemeyer;W. Hollik;H. Rzehak;G. Weiglein
为了解释在LHC希格斯搜寻中发现的信号，区分标准模型（SM）中实现的最小希格斯扇区和最常研究的扩展最小超对称SM（MSSM）将是至关重要的。测量的质量值，已经达到了约500兆电子伏的实验精度可观察到的精度水平，在这方面起着重要的作用。在MSSM的质量轻CP甚至希格斯玻色子，M h，可以直接从模型的其他参数预测。这种预测的准确性至少应该与实验结果相匹配。126 GeV的相对高质量值导致了许多研究，其中标量顶夸克在多TeV范围内。我们通过结合现有的固定阶结果，包括完整的一个循环和领导和subleading两个循环的校正，与从标量顶部扇区到所有订单的领导和subleading对数贡献的重申，改进了MSSM中的M h的预测。通过这种方式，第一次可以高精度地预测MSSM中的光CP -甚至希格斯玻色子的质量，直到相关超对称粒子的多TeV区域。结果包含在代码FeynHiggs中。
For the interpretation of the signal discovered in the Higgs searches at the LHC it will be crucial in particular to discriminate between the minimal Higgs sector realised in the Standard Model (SM) and its most commonly studied extension, the Minimal Supersymmetric SM (MSSM). The measured mass value, having already reached the level of a precision observable with an experimental accuracy of about 500 MeV, plays an important role in this context. In the MSSM the mass of the light CP even Higgs boson, M h , can directly be predicted from the other parameters of the model. The accuracy of this prediction should at least match the one of the experimental result. The relatively high mass value of about 126 GeV has led to many investigations where the scalar top quarks are in the multi-TeV range. We improve the prediction for M h in the MSSM by combining the existing fixed-order result, comprising the full one-loop and leading and subleading two-loop corrections, with a resummation of the leading and subleading logarithmic contributions from the scalar top sector to all orders. In this way for the first time a high-precision prediction for the mass of the light CP -even Higgs boson in the MSSM is possible all the way up to the multi-TeV region of the relevant supersymmetric particles. The results are included in the code FeynHiggs .