论文标题
MUON G-2，NETRININO暗物质和STAU NLSP
Muon g-2, Neutralino Dark Matter and Stau NLSP
论文作者
论文摘要
我们探讨了在SU（4）_C X SU（2）_l X SU（2）_R模型中解决MUON G-2异常的含义，其中软超对称性分解标量和gaugino质量破坏了左右（LR）对称性。异常的2 Sigma分辨率需要相对较轻的Slectons，Chargino和LSP Neutmalino。事实证明，这是质量<〜400 GEV的NLSP，前两个家庭的Slectons可能与约800 GEV一样沉重。还要求Chargino要比600 GEV轻一些，以适应与暗物质遗物密度约束一致的MUON G-2溶液。光Slepton状态的主要右手性质抑制了可能在LHC的Run3实验中探测的可能信号的灵敏度。我们还讨论了可容纳希格斯玻色子质量的影响以及这些解决方案标量潜力的真空稳定性。 Higgsinos比大约4个TEV重，如果Bino样，则LSP Neutilino具有正确的遗物密度。我们确定stau-neutralino coantihitation是实现所需暗物质密度的主要机制，而sneutrino-neutrilino coannihiliation发挥了较小的作用。这些类似Bino的暗物质解决方案可以在10^{ - 3} Pb的阶面产生独立于自旋的散射横截面，希望可以在不久的将来进行测试。
We explore the implications of resolving the muon g-2 anomaly in a SU(4)_c x SU(2)_L x SU(2)_R model, where the soft supersymmetry breaking scalar and gaugino masses break the left-right (LR) symmetry. A 2 sigma resolution of the anomaly requires relatively light sleptons, chargino and LSP neutralino. The stau turns out to be the NLSP of mass <~ 400 GeV, and the sleptons from the first two families can be as heavy as about 800 GeV. The chargino is also required to be lighter than about 600 GeV to accommodate the muon g-2 solutions consistent with the dark matter relic density constraint. The dominant right-handed nature of the light slepton states suppress the sensitivity of possible signals which can be probed in Run3 experiments at the LHC. We also discuss the impact of accomodating the Higgs boson mass and the vacuum stability of the scalar potential for these solutions. The Higgsinos are heavier than about 4 TeV, and the LSP neutralino has the correct relic density if it is Bino-like. We identify stau-neutralino coannihilation as the dominant mechanism for realizing the desired dark matter relic density, with sneutrino-neutralino coannihiliation playing a minor role. These bino-like dark matter solutions can yield a spin-independent scattering cross-section on the order of 10^{-3} pb which hopefully, can be expected to be tested in the near future.
