Impact of LHC probes of SUSY and recent measurement of(g-2)_μon Z_(3)-NMSSM  

作　　者：Junjie Cao Fei Li Jingwei Lian Yusi Pan Di Zhang 

机构地区：[1]Department of Physics,Henan Normal University,Xinxiang 453007,China

出　　处：《Science China(Physics,Mechanics & Astronomy)》2022年第9期52-64,共13页中国科学：物理学、力学、天文学（英文版）

基　　金：supported by the National Natural Science Foundation of China(Grant No.12075076)。

摘　　要：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 2σlevel and meanwhile keep consistent with the LHC results,the following lower bounds may be set:tanβ&20,|M_(1)|&275 GeV,M_(2)&300 GeV,μ&460 GeV,m_(μL)&310 GeV,and m_(μR)&350 GeV,where M_(1)and M_(2)denote gaugino masses,μrepresents the Higgsino mass,and m_(μL)and m_(μR)are the mass of Smuons with L and R denot-ing 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 keep valid for the Minimal Supersymmetric Standard Model since the underlying physics for the bounds are the same.

关 键 词：SUPERSYMMETRIC muon anomalous magnetic moment LHC 

分 类 号：O572[理学—粒子物理与原子核物理]