arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 1505.04595hep-ph
收藏

引力子暗物质的LHC约束

LHC constraints on Gravitino Dark Matter

Alexandre Arbey, Marco Battaglia, Laura Covi, Jasper Hasenkamp, Farvah Mahmoudi

摘要:

引力暗物质代表了超对称性中一个引人注目的场景,它汇集了来自宇宙学和对撞机物理学的各种数据。我们讨论了从LHC获得的约束超对称模型与引力子暗物质和中性子NLSP,这是最困难的情况下,在对撞机解开从中性子LSP形成DM。采用19+1自由参数的唯象超对称模型。从这些不相关的参数的相空间的广泛的扫描获得的结果。详细讨论了引力子质量、胶子质量与再加热温度之间的关系,以及由此导出的对这些参数的约束。这种关系提供了一个独特的机会,在引力子暗物质的情况下,从运行2和计划中的高光度升级的LHC搜索结果的宇宙模型的严格边界。

英文摘要:

Gravitino Dark Matter represents a compelling scenario in Supersymmetry, which brings together a variety of data from cosmology and collider physics. We discuss the constraints obtained from the LHC on supersymmetric models with gravitino dark matter and neutralino NLSP, which is the case most difficult to disentangle at colliders from a neutralino LSP forming DM. The phenomenological SUSY model with 19+1 free parameters is adopted. Results are obtained from broad scans of the phase space of these uncorrelated parameters. The relation between gravitino mass, gluino mass and reheating temperature as well as the derived constraints on these parameters are discussed in detail. This relation offers a unique opportunity to place stringent bounds on the cosmological model, within the gravitino dark matter scenario, from the results of the LHC searches in Run-2 and the planned High-Luminosity upgrade.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑