论文标题
$ m_w $，暗物质和$a_μ$在NMSSM中
$M_W$, Dark Matter and $a_μ$ in the NMSSM
论文作者
论文摘要
我们在NMSSM的参数空间中研究区域，这些区域能够同时解释$ W $质量$ M_W $和MUON异常磁矩$A_μ$的当前测量值，并提供与观测值以及从检测实验的约束相符的暗物质物质密度。相应的区域具有100-800〜GEV范围内的光charginos，Sleeptons和Staus，至少其中一些质量低于150 〜GEV，因此电子相互作用的Susy颗粒对$ M_W $产生足够的大量贡献。 LSP始终类似于单利诺，质量低于140 〜GEV，即使在将来的检测实验中，也可能仍然是看不见的。电动峰斑点的腐烂通过staus和/或Sleptons通过级联进行，这使得它们的检测具有挑战性。我们提出了基准点，以供将来对此类斑点进行搜索。最轻的CP-even标量可能在95-98〜GEV范围内具有质量，但是，鉴于该范围在LEP和LHC处报告了此范围内的轻度过量速率，在LHC处报告了适度的信号速率。
We study regions in the parameter space of the NMSSM which are able to simultaneously explain the current measured values for the $W$ mass $M_W$ and the muon anomalous magnetic moment $a_μ$, and provide a dark matter relic density consistent with the observations as well as constraints from detection experiments. The corresponding regions feature light charginos, sleptons and staus in the 100-800~GeV range, at least some of them with masses below 150~GeV such that the electroweakly-interacting SUSY particles generate sufficiently large contributions to $M_W$. The LSP is always singlino-like with a mass below 140~GeV, and could possibly remain invisible even at future detection experiments. Decays of electroweak sparticles proceed through cascades via staus and/or sleptons which makes their detection challenging. We propose benchmark points for future searches of such sparticles. The lightest CP-even scalar may have a mass in the 95-98~GeV range with, however, modest signal rates in view of the mild excesses reported in this range at LEP and by CMS at the LHC.
