Extended Higgs boson sectors, effective field theory, and Higgs boson phenomenology

Extended Higgs boson sectors, effective field theory, and Higgs boson phenomenology
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扩展希格斯玻色子扇区、有效场论和希格斯玻色子现象学

DOI:
10.1103/physrevd.103.096009
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发表时间:
2021
期刊:
影响因子:
5
通讯作者:
Anisha
Anisha
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
Anisha

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我们认为,除了有效场理论(EFT)耦合这个新的状态SM物质的标准模型(SM)希格斯部门的带电标量扩展的现象学意义。我们进行了详细的调查修改的125 GeV的希格斯玻色子,它接收来自传播的带电标量与单圈EFT运营商插入的校正环诱导衰变,并表明,相互作用ofanddecays可以用来澄清额外的状态现象学的情况下,在未来的发现。与此同时,带电希格斯粒子的EFT相互作用会导致对带电希格斯粒子态虚拟存在的敏感性降低,这会显著削弱精确测量的分支比所带来的约束。再次测量提供了互补的灵敏度,可以在未来利用。
We consider the phenomenological implications of charged scalar extensions of the Standard Model (SM) Higgs sector in addition to effective field theory (EFT) couplings of this new state to SM matter. We perform a detailed investigation of modifications of loop-induced decays of the 125 GeV Higgs boson, which receives corrections from the propagating charged scalars alongside one-loop EFT operator insertions and demonstrate that the interplay ofanddecays can be used to clarify the additional states phenomenology in case a discovery is made in the future. In parallel, EFT interactions of the charged Higgs can lead to a decreased sensitivity to the virtual presence of charged Higgs states, which can significantly weaken the constraints that are naively expected from the precisely measuredbranching ratio. Againmeasurements provide complementary sensitivity that can be exploited in the future.
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