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arXiv 1601.07934hep-ph
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BLSSM CP偶希格斯玻色子的LHC信号

LHC signals of a BLSSM CP-even Higgs boson

A. Hammad, S. Khalil, S. Moretti

摘要:

我们研究了大型强子对撞机在获取$B-L$超对称标准模型中性希格斯玻色子方面的作用范围。在评估运行1数据采集后的幸存参数空间配置后,我们研究了在运行2期间检测该对象的可能性。对于其中这种状态与所发现的标准模型类希格斯玻色子之间的混合不可忽略的模型配置,存在几个通道,使得能够在从$\approx 140$到$\approx$ 500 GeV的质量范围内发现它。对于质量为140 GeV的较轻的希格斯态,有三个通道是可访问的:$γγ$,$Zγ$和$ZZ$,其中$Z$玻色子以轻子方式衰变。对于质量大于250 GeV的较重希格斯态(即,是2012年发现的希格斯态质量的两倍),标志性的特征是它在两个这样的125 GeV标量$h'\to hh$中的衰变,其中$hh\to b\bar b γγ$。在所有这些情况下,在欧洲核子研究中心的机器上已经计划好的光度可能会出现上述发现的意义。

英文摘要:

We study the scope of the Large Hadron Collider in accessing a neutral Higgs boson of the $B-L$ Supersymmetric Standard Model. After assessing the surviving parameter space configurations following the Run 1 data taking, we investigate the possibilities of detecting this object during Run 2. For the model configurations in which the mixing between such a state and the discovered Standard Model-like Higgs boson is non-negligible, there exist several channels enabling its discovery over a mass range spanning from $\approx 140$ to $\approx$ 500 GeV. For a lighter Higgs state, with mass of order 140 GeV, three channels are accessible: $γγ$, $Zγ$ and $ZZ$, wherein the $Z$ boson decays leptonically. For a heavier Higgs state, with mass above 250 GeV (i.e., twice the mass of the Higgs state discovered in 2012), the hallmark signature is its decay in two such 125 GeV scalars, $h'\to hh$, where $hh\to b\bar b γγ$. In all such cases, significances above discovery can occur for already planned luminosities at the CERN machine.

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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