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arXiv 2103.01810hep-phhep-ex
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扩展希格斯扇区、有效场论和希格斯现象学

Extended Higgs sectors, effective field theory and Higgs phenomenology

Anisha, Upalaparna Banerjee, Joydeep Chakrabortty, Christoph Englert, Michael Spannowsky

摘要:

我们认为,除了EFT耦合这种新的状态SM物质的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的校正,以及单圈EFT运营商插入和证明的相互作用的$H\to γγ$和$H\to Zγ$衰变可以用来澄清额外的状态现象的情况下,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的虚拟存在的敏感性降低,这会显著削弱精确测量的$H\to γγ$分支比所带来的约束。同样,$H\to Zγ$测量提供了可在未来开发的补充灵敏度。

英文摘要:

We consider the phenomenological implications of charged scalar extensions of the SM Higgs sector in addition to 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 of $H\to γγ$ and $H\to Zγ$ decays 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 measured $H\to γγ$ branching ratio. Again $H\to Zγ$ measurements provide complementary sensitivity that can be exploited in the future.

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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