论文标题

关于(n)MSSM中沉重希格斯状态的骨衰变

About the bosonic decays of heavy Higgs states in the (N)MSSM

论文作者

Domingo, Florian, Paßehr, Sebastian

论文摘要

标准模型的两种二型二杆模型的延伸量预期的重型,双线主导的希格斯玻色子是高能量乘员搜索的明显目标,并且目前从这种意义上进行了相当大的活​​动来分析大型Hadron Collider的结果。对于足够沉重的状态,$ su(2)_ {\ mathrm {l}} $对称性极大地限制了这些新标量的衰减。在仅包含其他HigGS双线的型号中,尽管某些肺泡模式可能会导致更清洁的信号,但预计费米子衰减通道将占主导地位。如果Higgs部门进一步扩展了单线状态,并且以运动为主导的标量在运动学上可以访问,则情况会大不相同,在这种情况下,Higgs-to-Higgs宽度甚至可能成为主导。然而,根据特定模型对实验数据的定量解释也可以通过控制该模型中的辐射校正的控制。 In this paper, we examine the bosonic decays of the heavy, doublet-dominated Higgs states in the MSSM and the NMSSM at full one-loop order, insisting on the impact of the $SU(2)_{\mathrm{L}}$ symmetry and the effects of infrared type, in particular, the emergence of sizable non-resonant contributions to the three-boson final states.

The heavy, doublet-dominated Higgs bosons expected in Two-Higgs-Doublet-Model-like extensions of the Standard Model are obvious targets for searches at high-energy colliders, and considerable activity in this sense is currently employed in analyzing the results of the Large Hadron Collider. For sufficiently heavy states, the $SU(2)_{\mathrm{L}}$ symmetry drastically constrains the decays of these new scalars. In models that contain only additional Higgs doublets, fermionic decay channels are expected to dominate, although some bosonic modes may lead to cleaner signals. The situation is very different if the Higgs sector is further extended by singlet states and the singlet-dominated scalars are kinematically accessible, in which case the Higgs-to-Higgs widths may even become dominant. Yet, a quantitative interpretation of the experimental data in terms of a specific model also runs through the control of radiative corrections in this model. In this paper, we examine the bosonic decays of the heavy, doublet-dominated Higgs states in the MSSM and the NMSSM at full one-loop order, insisting on the impact of the $SU(2)_{\mathrm{L}}$ symmetry and the effects of infrared type, in particular, the emergence of sizable non-resonant contributions to the three-boson final states.

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