论文标题
低质量希格斯 - 玻色子搜索和W玻孔质量测量中的过剩
Excesses in the low-mass Higgs-boson search and the W-boson mass measurement
论文作者
论文摘要
CDF合作最近报告了$ W $ -BOSOS MASS的测量值，即$ M_W $，显示出与标准模型（SM）预测的巨大正偏差。出现的问题是，是否存在可以适应如此庞大的价值的SM的扩展，以及从中产生什么进一步的现象学后果。在搜索光希格斯玻色子的搜索中，已经通过实验观察到了与SM的不同类型的偏差。 CMS在$γγ$中观察到了两个本地$ \ sim 3 \，σ$多余物，$τ^+τ^ - $最终状态，用于假设的higgs-boson质量为$ \ sim 95 $ gev。这两个过剩与相应的地图集限制兼容。在LEP的Higgs-Boson搜索中观察到了第三个过剩，在$ b \ bar b $最终状态下，在本地$ \ sim 2 \，σ$置信水平，大约在同一higgs-boson质量上。最近表明，可以描述这三个过度的2HDM，并以Yukawa型IV的真实单曲（N2HDM）扩展，同时与所有其他理论和实验性约束一致。我们证明，与最近的CDF测量相一致的$ M_W $的参数空间也可以给出$ m_w $的巨大贡献。我们讨论了这种情况的进一步现象学后果。
The CDF collaboration recently reported a measurement of the $W$-bosos mass, $M_W$, showing a large positive deviation from the Standard Model (SM) prediction. The question arises whether extensions of the SM exist that can accommodate such large values, and what further phenomenological consequences arise from this. A different type of deviation from the SM has been observed experimentally in the searches for light Higgs bosons. CMS has observed two local $\sim 3\,σ$ excesses in the $γγ$ and $τ^+τ^-$ final states for a hypothetical Higgs-boson mass of $\sim 95$ GeV. These two excesses are compatible with the corresponding ATLAS limits. A third excess was observed in the Higgs-boson searches at LEP in the $b \bar b$ final state at the local $\sim 2\,σ$ confidence level at about the same Higgs-boson mass. It was shown recently that the three excesses can be described the the 2HDM extended with a real singlet (N2HDM) of Yukawa type IV, while being in agreement with all other theoretical and experimental constraints. We demonstrate that the parameter space that accomodates the three excesses can also give a large contribution to $M_W$ in agreement with the recent CDF measurement. We discuss further phenomenological consequences of this scenario.
