Testing the 2HDM explanation of the muon g – 2 anomaly at the LHC
Testing the 2HDM explanation of the muon g – 2 anomaly at the LHC
复制标题
DOI：
10.1007/jhep11(2019)130
复制
发表时间：
2019-07
影响因子：
5.4
通讯作者：
Syuhei Iguro;Y. Omura;M. Takeuchi
中科院分区：
文献类型：
--
作者：
Syuhei Iguro;Y. Omura;M. Takeuchi
μ子反常磁矩的测量值与标准模型预测值之间的差异是粒子物理中的重要问题之一。本文考虑了一个双Higgs二重态模型（2HDM），其中额外的Higgs二重态以轻子味破坏（LFV）方式与μ子和τ子耦合，标量的单圈修正对μ子反常磁矩有很大贡献.耦合应该是相当大的，以解释这种差异，这样额外的希格斯玻色子将主要衰变为μτ LFV模式，这使得模型可以在LHC通过多轻子签名进行测试，即使它们是通过电弱相互作用产生的。本文讨论了LHC额外Higgs搜寻的现状和未来前景，并介绍了利用多轻子事件重建质谱的方法。
The discrepancy between the measured value and the Standard Model pre-diction for the muon anomalous magnetic moment is one of the important issues in the particle physics. In this paper, we consider a two Higgs doublet model (2HDM) where the extra Higgs doublet couples to muon and tau in lepton flavor violating (LFV) way and the one-loop correction involving the scalars largely contributes to the muon anomalous magnetic moment. The couplings should be sizable to explain the discrepancy, so that the extra Higgs bosons would dominantly decay into μτ LFV modes, which makes the model testable at the LHC through multi-lepton signatures even though they are produced via the electroweak interaction. We discuss the current status and the future prospect for the extra Higgs searches at the LHC, and demonstrate the reconstruction of the mass spectrum using the multi-lepton events.