发表机构
Université Paris-Saclay（巴黎萨克雷大学）
机构由 AI 辅助整理，请以论文原文为准。AI 中文总结
本文提出LHC中650 GeV过量信号可解释为Randall-Sundrum KK引力子共振，通过修正搜索策略可显著提高ZZ、hh通道效率，实现早期发现。
AI 中文摘要
在LHC观测到的过量信号证据往往聚集在约95 GeV和650 GeV附近。我们认为，对650 GeV信号及其他一些额外迹象的一致解释，需要引入Randall-Sundrum类型的Kaluza-Klein引力子共振序列。一种普遍的看法认为，这类共振应当非常重，超出LHC的探测范围。我们论证情况并非如此。尽管目前的LHC搜索似乎在2 TeV以下排除了这些粒子，我们解释了为何这个650 GeV共振可能是其中之一。我们还解释了为何正在进行的分析忽略了这一场景，并采用了仅适用于标量共振的选择条件。这也可能适用于正在进行的希格斯对搜索，其中对衰变为标准模型希格斯对的共振搜索忽略了KK引力子场景。我们预期，通过正确的处理，可以显著提高ZZ和hh通道的探测效率，并利用现有数据实现对我们预期的有力证明。诸如h(95)h(125)和h(95)h(95)的通道应被加入当前的选择条件中。这些改进应能促成发现。对于ZZ和WW通道，可以利用半轻子和纯强子末态，以确认指示到3 TeV的KK共振塔。
英文摘要
Evidence for excesses observed at LHC tend to cluster mostly around 95 GeV and 650 GeV. We claim that a consequent interpretation of the 650 GeV and some additional indications calls for a Randall Sundrum sequence of Kaluza Klein graviton resonances. A common prejudice claims that such resonances should be very heavy, out of reach for LHC. We argue that this is no so. Although present LHC searches seem to exclude these particles below 2 TeV, we explain why this 650 GeV resonance could be one of them. We also explain why ongoing analyses ignore this scenario and apply selections which are only valid for scalar resonances. This could also apply to ongoing searches for Higgs pairs where the search for resonances decaying into SM Higgs pairs ignores the KK graviton scenario. We expect that with a correct treatment, one could very significantly increase the detection efficiency for ZZ and hh channels and achieve, with present data, a convincing proof of our expectations. Channels like h(95)h(125) and h(95)h(95) should be added to present selections. Such improvements should allow to reach a discovery. For the ZZ and WW channels, one can use semi-leptonic and purely hadronic final states, to confirm the tower of KK resonances indicated up to 3 TeV.
Comments9 pages, 6 figures, Follow up of discussions at the Higgs Hunting meeting 2026 in Orsay
