标题： 在CERN LHC中寻找具有宇宙学兴趣的轻中性子 显示英文标题

标题： Search at the CERN LHC for a light neutralino of cosmological interest

摘要： 我们针对在LHC上搜索质量约为10 GeV的中性微子的问题进行研究，即处于当前数据对银河晕中暗物质粒子直接搜索感兴趣的范围内。这种轻量级中性微子在此模型中是在电弱尺度下的标准模型的有效最小超对称扩展中实现的，而无需在大统一尺度下要求规变粒子质量统一。在这个模型中，我们选择一个代表性基准，并确定其在LHC运行不同阶段重建模型主要特征的可能性。 显示英文摘要

摘要： We address the problem of a search at the LHC for a neutralino whose mass is around 10 GeV, i.e. in the range of interest for present data of direct search for dark matter particles in the galactic halo. This light neutralino is here implemented in an effective Minimal Supersymmetric extension of the Standard Model at the electroweak scale without requirement of a gaugino-mass unification at a grand unification scale. Within this model we select a representative benchmark and determine its prospects of reconstructing the main features of the model at different stages of the LHC runs.