Probing the Higgs sector of the minimal Left-Right symmetric model at future hadron colliders
Probing the Higgs sector of the minimal Left-Right symmetric model at future hadron colliders
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DOI：
10.1007/jhep05(2016)174
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发表时间：
2016-02
影响因子：
5.4
通讯作者：
P. Dev;R. Mohapatra;Yongchao Zhang
中科院分区：
文献类型：
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作者：
P. Dev;R. Mohapatra;Yongchao Zhang
如果中微子质量来自TeV尺度的最小左右跷跷板模型，那么随之而来的中性、单电荷和双电荷标量的扩展希格斯扇区对未来强子对撞机（如= 14 TeV的高亮度大型强子对撞机（HL-LHC）和拟议的= 100 TeV对撞机（FCC-hh或SPPC））在标准模型之外寻找新的希格斯玻色子具有过多的影响。在这篇文章中，我们提供了一个在希格斯部门的新物理一瞥。我们的讨论集中在最小的非超对称版本的左-右模型与高规模的宇称破缺，但TeV规模的SU（2）R-破缺，一个理想的属性，以抑制第二类跷跷板贡献中微子质量。我们分析了这个模型中物理希格斯玻色子的质量和耦合，并讨论了它们在强子对撞机上的主要产生和衰变模式。我们确定了最好的发现渠道为每个非SM希格斯玻色子和估计预期的SM背景在这些渠道中，以获得新的希格斯部门在未来的强子对撞机的灵敏度达到讨论。按照一个相当保守的方法，我们估计，重希格斯部门可以有效地探测高达15 TeV的= 100 TeV的机器。我们还讨论了如何LR希格斯部门可以从其他扩展希格斯部门区分。
If neutrino masses arise from a TeV-scale minimal Left-Right seesaw model, the ensuing extended Higgs sector with neutral, singly and doubly-charged scalars has a plethora of implications for new Higgs boson searches beyond the Standard Model at future hadron colliders, such as the= 14 TeV High-Luminosity Large Hadron Collider (HL-LHC) and the proposed= 100 TeV collider (FCC-hh or SPPC). In this article, we provide a glimpse of this new physics in the Higgs sector. Our discussion focuses on the minimal non-supersymmetric version of the Left-Right model with high-scale parity breaking but TeV-scale SU (2) R-breaking, a property desirable to suppress the type-II seesaw contribution to neutrino masses. We analyze the masses and couplings of the physical Higgs bosons in this model, and discuss their dominant production and decay modes at hadron colliders. We identify the best discovery channels for each of the non-SM Higgs bosons and estimate the expected SM backgrounds in these channels to derive the sensitivity reaches for the new Higgs sector at future hadron colliders under discussion. Following a rather conservative approach, we estimate that the heavy Higgs sector can be effectively probed up to 15 TeV at the= 100 TeV machine. We also discuss how the LR Higgs sector can be distinguished from other extended Higgs sectors.