AI 中文总结
本文在Starobinsky超引力耦合的MSSM中实现约1 TeV近纯Higgsino暗物质,结合LUX-ZEPLIN事件,通过引力中介与重整化群演化联系粒子谱与暴胀观测量,证明Bino诱导劈裂下希格斯质量与实验一致,排除Wino诱导劈裂。
AI 中文摘要
我们在与Starobinsky超引力耦合的最小超对称标准模型(MSSM)中,实现了一个质量约为1 TeV的近纯Higgsino暗物质候选者。近期LUX-ZEPLIN实验观测到的248 keV核反冲事件重新激发了人们对Higgsino暗物质的兴趣。在该框架下,粒子谱(包括希格斯玻色子质量、Higgsino质量及其劈裂)通过超对称破缺的引力中介及随后的重整化群演化与宇宙暴胀观测量相联系。我们证明,对于广泛的由Bino诱导的质量劈裂范围,模型预测的希格斯玻色子质量在给出的不确定度内与测量值一致。而由Wino诱导的劈裂会导致希格斯质量高出几个GeV,因此被排除。
英文摘要
We realize a nearly pure higgsino dark matter candidate with mass of about 1 TeV in the Minimal Supersymmetric Standard Model coupled to the Starobinsky supergravity. The recent LUX-ZEPLIN 248 keV nuclear-recoil event has renewed interest in higgsino dark matter. In this framework, the particle spectrum, including the Higgs boson mass, the higgsino mass and its splitting, is connected to cosmic inflation observables via gravitational mediation of supersymmetry breaking and subsequent renormalization group evolution. We show that the Higgs boson mass predicted by the model agrees with the measured value within the quoted uncertainties for a broad range of bino-induced mass splittings. Wino-induced splitting leads to a Higgs mass several GeV higher and is therefore excluded.
Comments7 pages, 1 figure. LaTeX