期刊论文详细信息
Journal of High Energy Physics
Gravity-mediated scalar Dark Matter in warped extra-dimensions
Miguel G. Folgado1  Andrea Donini1  Nuria Rius1 
[1] Departamento de Física Teórica and IFIC, Universidad de Valencia-CSIC, C/ Catedrático José Beltrán, 2, E-46980, Paterna, Spain;
关键词: Phenomenology of Field Theories in Higher Dimensions;   
DOI  :  10.1007/JHEP01(2020)161
来源: Springer
PDF
【 摘 要 】

We revisit the case of scalar Dark Matter interacting just gravitationally with the Standard Model (SM) particles in an extra-dimensional Randall-Sundrum scenario. We assume that both, the Dark Matter and the Standard Model, are localized in the TeV brane and only interact via gravitational mediators, namely the graviton Kaluza-Klein modes and the radion. We analyze in detail the dark matter annihilation channel into two on-shell KK-gravitons, and contrary to previous studies which overlooked this process, we find that it is possible to obtain the correct relic abundance for dark matter masses in the range [1, 10] TeV even after taking into account the strong bounds from LHC Run II. We also consider the impact of the radion contribution (virtual exchange leading to SM final states as well as on-shell production), which does not significantly change our results. Quite interestingly, a sizeable part of the currently allowed parameter space could be tested by LHC Run III and by the High-Luminosity LHC.

【 授权许可】

Unknown   

【 预 览 】
附件列表
Files Size Format View
RO202202183284106ZK.pdf 1477KB PDF download
  文献评价指标  
  下载次数:5次 浏览次数:2次