论文标题
通过proton-proton碰撞中的向量玻色子融合过程探测重的主要中微子和温伯格操作员,$ \ sqrt {s} $ = 13 tev
Probing heavy Majorana neutrinos and the Weinberg operator through vector boson fusion processes in proton-proton collisions at $\sqrt{s}$ = 13 TeV
论文作者
论文摘要
提出了第一次利用矢量玻色子融合过程来探测LHC的重大中微子和Weinberg操作员的探测。该搜索是在$ \ sqrt {s} $ = 13 tev中记录的质子 - 普罗顿碰撞数据集以相同符号Dimuon最终状态执行的,该数据集用CMS检测器收集,并对应于138 fb $^{ - 1} $的总体集成亮度。发现结果与标准模型的预测一致。对于沉重的主要中微子,在沉重的中微子质量范围为50 GEV-25 TEV中,穆恩和重中微子之间的平方混合元件的限制是限制的;对于650 GEV以上的群众,这些是LHC迄今搜索的最严格约束。对山脉的Weinberg操作员的首次测试在有效的$μum$ MajoraNA中微子质量为10.8 GEV的情况下,在95%的置信度下观察到的上限为95%。
The first search exploiting the vector boson fusion process to probe heavy Majorana neutrinos and the Weinberg operator at the LHC is presented. The search is performed in the same-sign dimuon final state using a proton-proton collision data set recorded at $\sqrt{s}$ = 13 TeV, collected with the CMS detector and corresponding to a total integrated luminosity of 138 fb$^{-1}$. The results are found to agree with the predictions of the standard model. For heavy Majorana neutrinos, constraints on the squared mixing element between the muon and the heavy neutrino are derived in the heavy neutrino mass range 50 GeV-25 TeV; for masses above 650 GeV these are the most stringent constraints from searches at the LHC to date. A first test of the Weinberg operator at colliders provides an observed upper limit at 95% confidence level on the effective $μμ$ Majorana neutrino mass of 10.8 GeV.