论文标题

LHC探针的影响以及$(G-2)_ $的最新测量对$ \ Mathbb {Z} _3 $ -NMSSM的影响

Impact of LHC probes of SUSY and recent measurement of $(g-2)_μ$ on $\mathbb{Z}_3$-NMSSM

论文作者

Cao, Junjie, Li, Fei, Lian, Jingwei, Pan, Yusi, Zhang, Di

论文摘要

众所周知,过度沉重的超对称颗粒(蜘蛛)不利于解释$(g-2)_μ$异常,但是有些人忽略了SuperSymmememmetry的LHC探针也使中度轻微的)不受欢迎。我们以近距到最小的超对称标准模型为例,以强调后一点。发现,如果需要该理论以$2σ$级别解释异常,并且与LHC结果保持一致,则可以设置以下下限:$ \tanβ\ gtrsim 20 $,$ | m_1 | \ gtrsim 275〜 {\ rm gev} $,$ m_2 \ gtrsim 300〜 {\ rm gev} $,$μ\ gtrsim 460〜 {\ rm gev} $,$ m _ { $ m _ {\tildeμ_r} \ gtrsim 350〜 {\ rm gev} $,其中$ m_1 $和$ m_1 $和$ m_2 $ deote gaugino smass,$μ$代表higgsino smos,$ m _ {\tildeμ_l} $ smun smun smun smun smun smu n $ r $和$ r $表示其主要的手性组件。该观察结果对暗物质(DM)物理学有重大影响,例如,流行的$ Z $和Higgs洪其区域已被排除在外,并且Bino-Prominalino的Neutralino DM必须与Wino主导的Electroweakinos(在大多数情况下)(在少数情况下)和/或Smuons(在少数情况下)(在少数情况下)(在少数情况下)(在少数情况下(在少数情况下)),以获得正确的dmention。还可以推断出这些结论应适用于最小的超对称标准模型,因为边界的基本物理是相同的。

It is well known that excessively heavy supersymmetric particles (sparticles) are disfavored to explain the $(g-2)_μ$ anomaly, but some people overlook that moderately light sparticles are also disfavored by the LHC probes of supersymmetry. We take the Next-to-Minimal Supersymmetric Standard Model as an example to emphasize the latter point. It is found that, if the theory is required to explain the anomaly at $2σ$ level and meanwhile keep consistent with the LHC results, the following lower bounds may be set: $\tan β\gtrsim 20$, $|M_1| \gtrsim 275~{\rm GeV}$, $M_2 \gtrsim 300~{\rm GeV}$, $μ\gtrsim 460~{\rm GeV}$, $m_{\tildeμ_L} \gtrsim 310~{\rm GeV}$, and $m_{\tildeμ_R} \gtrsim 350~{\rm GeV}$, where $M_1$ and $M_2$ denote gaugino masses, $μ$ represents the Higgsino mass, and $m_{\tildeμ_L}$ and $m_{\tildeμ_R}$ are the mass of Smuons with $L$ and $R$ denoting their dominant chiral component. This observation has significant impacts on dark matter (DM) physics, e.g., the popular $Z$- and Higgs-funnel regions have been excluded, and the Bino-dominated neutralino DM has to co-annihilate with the Wino-dominated electroweakinos (in most cases) and/or Smuons (in few cases) to obtain the correct density. It is also inferred that these conclusions should apply to the Minimal Supersymmetric Standard Model since the underlying physics for the bounds are the same.

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