Heavy Higgs searches: flavour matters
Heavy Higgs searches: flavour matters
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DOI：
10.1007/jhep01(2018)108
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发表时间：
2017-10
影响因子：
5.4
通讯作者：
S. Gori;C. Grojean;A. Juste;A. Paul
中科院分区：
文献类型：
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作者：
S. Gori;C. Grojean;A. Juste;A. Paul
我们指出，额外的电中性和带电希格斯玻色子质量的严格下界在很大程度上取决于它们汤川相互作用的风味结构。我们证明，通过在希格斯扇区引入改变味道的中性电流，可以很容易地避开这些界限。作为一个例子，我们研究了一个汤川织构的双希格斯双重态模型的现象学，该模型挑出了夸克和轻子的第三族。我们结合了来自低能味物理测量、大型强子对撞机对125 GeV希格斯玻色子速率的测量以及大型强子对撞机寻找新的重希格斯玻色子的约束。我们建议在未来几年进行新的大型强子对撞机搜索，以揭示这些新的希格斯玻色子的存在。
We point out that the stringent lower bounds on the masses of additional electrically neutral and charged Higgs bosons crucially depend on the flavour structure of their Yukawa interactions. We show that these bounds can easily be evaded by the introduction of flavour-changing neutral currents in the Higgs sector. As an illustration, we study the phenomenology of a two Higgs doublet model with a Yukawa texture singling out the third family of quarks and leptons. We combine constraints from low-energy flavour physics measurements, LHC measurements of the 125 GeV Higgs boson rates, and LHC searches for new heavy Higgs bosons. We propose novel LHC searches that could be performed in the coming years to unravel the existence of these new Higgs bosons.