发表机构
Université Paris-Saclay, CNRS/IN2P3, IJCLab（巴黎萨克雷大学，法国国家科学研究中心/欧洲核子研究组织，IJCLab）
机构由 AI 辅助整理，请以论文原文为准。AI 中文总结
本研究将费米-LAT和LZ观测到的暗物质候选体解释为通过自旋2共振（KK引力子塔）耦合，与LHC数据一致，并指出未来e+e-对撞机可观测该暗物质。
AI 中文摘要
最近对费米-LAT数据的分析声称，在我们银河系晕中，能量约为20 GeV的高能光子存在显著超出，但在矮星系中却没有这种超出。这一超出可以被解释为来自质量约为几百GeV的暗物质（DM）物体，它们湮灭成包含主要来自中性π介子的光子的强子喷流。这一观测得到了LUX-ZEPLIN（LZ）探测器在同一质量区域对暗物质候选体的完全独立观测的支持。为了避免与来自矮星系的上限相矛盾，人们不得不假设存在一个与这些物体耦合的自旋2共振，这解释了由于两个区域速度分布不同而导致的差异。这项工作指出，LHC数据表明存在卡鲁扎-克莱因引力子共振塔。这一解决方案与超对称（SUSY）对暗物质的解释不同，因此不一定需要通常提出的1.1 TeV Higgsino。如果这些KK共振与e+e-耦合，正如LHC数据所示，那么e+e-对撞机可以观测到这些暗物质物体。LHC可以确认我们的KK引力子解释，并最终探测到暗物质粒子。这将有助于确定未来e+e-对撞机所需的能量。
英文摘要
Recently an analysis of Fermi-LAT data has claimed a significant excess of energetic photons centred around 20 GeV, in the halo of our galaxy but absent in dwarf galaxies. This excess can be interpreted as coming from dark mater (DM) objects with a mass of few 100 GeV which annihilate into hadronic jets containing photons mainly from neutral pions. This observation is independently backed up by a completely independent observation of the LUX-ZEPLIN (LZ) detector of a DM candidate in the same region of mass. To avoid contradiction with upper limits coming from dwarf galaxies, one is led to assume the presence of a spin 2 resonance coupled to these objects, which explains this difference as due to different speed distributions in the two regions. This work recalls that LHC data indicate a tower of Kaluza Klein graviton resonances. This solution is at variance with a SUSY interpretation of DM and therefore does not necessary call for a 1.1 TeV Higgsino, as often proposed. If these KK resonances are coupled to e+e-, as indicated by LHC data, an e+e- collider could observe these DM objects. LHC could confirm our KK graviton interpretation and, eventually, detect the DM particles. This would allow to define de energy needed at a future e+e- collider.
Comments11 pages, 9 figures, to be presented at LCWS2026
