论文标题

MUON $ G-2 $在2HDM的辅助标量:在ILC上进行探测

Muon $g-2$ in a 2HDM assisted by inert scalars: probing at the ILC

论文作者

Chakrabarty, Nabarun, Chakraborty, Indrani

论文摘要

两种二型双线模型(2HDM)可以预测,对于现在面临严格限制的适当轻型伪cal,观察到的Muon $ G-2 $。但是,过去证明,增加2HDM的额外惰性双打可以导致对Muon $ g-2 $异常的解释,以使一个重得多的伪cal。在这项研究中,我们使用$ \ sqrt {s} $ = 1 TEV的梁极化在拟议的国际线性撞机(ILC)上探究了这样的框架。使用多元技术,我们分析信号$ e^+ e^ - \rightArrowτ^+τ^ - + $缺少横向能量和$ e^+ e^ - \rightArrowμ^+μ^ - + $缺少Lepton和Muon特定版本中的横向横向能量。我们的分析表明,在3000 fb $^{ - 1} $ Luminosity以3000 fb $^{ - 1} $ luminosity运行的$ e^+ e^ - $机器预测,伪cal的发现为400 GEV的重量。与先前的研究相比,可以得出结论,在这方面,ILC比LHC更有效。

A Two-Higgs doublet model (2HDM) can predict the observed muon $g-2$ for an appropriately light pseudoscalar that now faces tight constraints. However, It was shown in past that augmenting the 2HDM by an additional inert doublet can lead to an explanation to the muon $g-2$ anomaly for a much heavier pseudoscalar. In this study, we probe such a framework at the proposed International Linear Collider (ILC) using beam polarization for $\sqrt{s}$ = 1 TeV. Using multivariate techniques, we analyse the signals $e^+ e^- \rightarrow τ^+ τ^- +$ missing transverse energy and $e^+ e^- \rightarrow μ^+ μ^- + $ missing transverse energy in the lepton- and muon-specific versions of the framework respectively. Our analysis reveals that the $e^+ e^-$ machine operating at a 3000 fb$^{-1}$ luminosity predicts a 5$σ$ discovery of a pseudoscalar as heavy as 400 GeV. Comparing with the previous study, it is concluded that the ILC is a much more potent machine than the LHC in this regard.

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