论文标题
HIGGS玻色子成对产生的量子干扰效应超出了标准模型
Quantum interference effects in Higgs boson pair-production beyond the Standard Model
论文作者
论文摘要
新的物理框架，例如近临界的超对称标准模型和近代到2-higgs-doublet模型，包含三个中性CP-even Higgs玻色子。这些状态中的两个较重的质量可能会彼此相同，这可能会导致其介导的过程中的传播器之间的相当大的量子干扰。对于这两个模型，我们研究了这种干扰对三个标量最轻的成对产生的影响，我们在Gluon融合通道（LHC）的Gluon融合通道中与观察到的125 GEV Higgs Boson一起识别。我们发现，对于此过程，与忽略时值相比，这些效果的包含可以大大改变横截面。我们的结果说明了在LHC的未来运行中研究扩展的HIGGS领域的现象学时，不仅考虑了可能的量子干扰效应的重要性，而且还要在这些模型的参数空间中施加其当前的排除范围。
New physics frameworks like the Next-to-Minimal Supersymmetric Standard Model and the Next-to-2-Higgs-doublet Model contain three neutral CP-even Higgs bosons. It is possible for the heavier two of these states to have masses identical to each other, which can result in a sizeable quantum interference between their propagators in processes they mediate. For both these models, we study the impact of such interference on the pair-production of the lightest of the three scalars, which we identify with the observed 125 GeV Higgs boson, in the gluon-fusion channel at the Large Hadron Collider (LHC). We find that the inclusion of these effects can substantially alter the cross section, compared to its value when they are ignored, for this process. Our results illustrate the importance of taking possible quantum interference effects into account not only when investigating the phenomenology of extended Higgs sectors at the future Run(s) of the LHC, but also when imposing its current exclusion bounds on the parameter spaces of these models.
