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arXiv 1710.03752hep-phhep-ex
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Heavy Higgs粒子:味道很重要

Heavy Higgs Searches: Flavour Matters

Stefania Gori, Christophe Grojean, Aurelio Juste, Ayan Paul

摘要:

我们指出,额外的电中性和带电的希格斯玻色子玻色子的质量严格的下限至关重要地依赖于他们的汤川相互作用的味道结构。我们表明,这些界限可以很容易地通过在希格斯扇区引入改变味道的中性电流来规避。作为一个例子,我们研究了一个两希格斯偶极子模型与汤川纹理挑出来的夸克和轻子的第三家庭的现象。我们结合了低能量的物理测量,LHC测量的125 GeV的希格斯玻色子率,和LHC搜索新的重希格斯玻色子的约束。我们提出了新的大型强子对撞机搜索,可以在未来几年内执行,以解开这些新的希格斯玻色子玻色子的存在。

英文摘要:

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.

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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