论文标题

MUON $ G-2 $ IN HIGGS-ANOMALY调解

Muon $g-2$ in Higgs-anomaly mediation

论文作者

Yanagida, Tsutomu T., Yin, Wen, Yokozaki, Norimi

论文摘要

在最小的超对称标准模型的背景下,本作者提出了一个简单的解释MUON异常磁矩的模型[1607.05705,1608.06618]:“ Higgs-Anomaly Mediation”。在设置中,蹲下,睡眠和仪表在树级时是无质量的,但是希格斯双重运动会获得了很大的负面柔软的超级对称(SUSY)折断质量,平方$ m_ {h_U}^2 \ simeq m_ { Sfermion肿块是由异常介导和Higgs-loop效应辐射产生的,而gaugino质量仅由异常介导确定。因此,Smuons和Bino足够轻,可以解释MUON $ G-2 $异常,而第三代Sfermions则足够重,可以解释观察到的Higgs玻色子质量。该方案避免了Susy风味问题以及各种宇宙学问题,并且与辐射的Electroweak对称性破坏一致。 In this paper, we show that, although the muon $g-2$ explanation in originally proposed Higgs-anomaly mediation with $M_{\rm inp}\sim 10^{16}\,$GeV is slightly disfavored by the latest LHC data, the muon $g-2$ can still be explained at $1σ$ level when Higgs mediation becomes important at the intermediate scale, $ m _ {\ rm inp} \ sim 10^{12} \,$ gev。该方案预测了LHC和未来对撞机实验的光SUSY颗粒。我们还提供了$ M_ {H_U}^2 \ simeq m_ {h_d}^2 <0 $在中间刻度上的简单实现。

A simple model for the explanation of the muon anomalous magnetic moment was proposed by the present authors within the context of the minimal supersymmetric standard model [1607.05705, 1608.06618]: "Higgs-anomaly mediation". In the setup, squarks, sleptons, and gauginos are massless at tree-level, but the Higgs doublets get large negative soft supersymmetry (SUSY) breaking masses squared $m_{H_u}^2 \simeq m_{H_d}^2 < 0$ at a certain energy scale, $M_{\rm inp}$. The sfermion masses are radiatively generated by anomaly mediation and Higgs-loop effects, and gaugino masses are solely determined by anomaly mediation. Consequently, the smuons and bino are light enough to explain the muon $g-2$ anomaly while the third generation sfermions are heavy enough to explain the observed Higgs boson mass. The scenario avoids the SUSY flavor problem as well as various cosmological problems, and is consistent with the radiative electroweak symmetry breaking. In this paper, we show that, although the muon $g-2$ explanation in originally proposed Higgs-anomaly mediation with $M_{\rm inp}\sim 10^{16}\,$GeV is slightly disfavored by the latest LHC data, the muon $g-2$ can still be explained at $1σ$ level when Higgs mediation becomes important at the intermediate scale, $M_{\rm inp} \sim 10^{12}\,$GeV. The scenario predicts light SUSY particles that can be fully covered by the LHC and future collider experiments. We also provide a simple realization of $m_{H_u}^2 \simeq m_{H_d}^2 < 0$ at the intermediate scale.

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