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arXiv 1311.1663hep-phhep-ex
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LHC搜索结果对MSSM中W玻色子质量预测的影响

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

S. Heinemeyer, W. Hollik, G. Weiglein, L. Zeune

摘要:

本文给出了最小超对称标准模型(MSSM)中目前最精确的W玻色子质量(M_W)预测,并讨论了它如何受到LHC最近结果的影响。评估包括完整的单回路结果和所有已知的SM和SUSY型高阶校正。考虑到Higgs和SUSY搜索的约束,我们在M_W-m_t平面上给出了MSSM预测。我们指出,即使停止和sbottoms是重的,相对较大的超对称贡献M_W是可能的,如果任一charginos,neutralinos或slepton是轻的。特别地,我们分析了125.6 GeV的Higgs信号对MW预言的影响,在MSSM中,Higgs信号原则上可以解释为轻或重CP-甚至希格斯玻色子玻色子。对于这两种解释,M_W的MSSM预测区域与实验测量结果吻合得很好。我们进一步讨论了未来LHC在停止扇区中可能的结果对M_W预测的影响,考虑了改进的限制和标量顶夸克的检测的情况。

英文摘要:

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.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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