论文标题
部分可观测时空混沌系统的无模型预测
Search for new heavy resonances decaying to WW, WZ, ZZ, WH, or ZH boson pairs in the all-jets final state in proton-proton collisions at $\sqrt{s}$ = 13 TeV
论文作者
论文摘要
在全JETS最终状态下，寻找新的重谐振腐烂到WW，WZ，ZZ，WH或ZH Boson对。该分析基于CMS检测器在2016 - 2018年记录的Proton-Proton碰撞数据，在CERN LHC处于13 TEV的质量中心能量，对应于138 fb $^{ - 1} $的综合发光度。该搜索对1.3至6 TeV之间的质量共鸣很敏感，对高度洛伦兹（Lorentz）增强的玻色子腐烂，使每个玻色子形成一个单一的大型摩擦射流。使用机器学习技术来识别此类喷气机。观察到与估计的标准模型背景相比，没有显着过多。在2.1和2.9 TEV的质量下观察到3.6个标准偏差的最大局部显着性，对应于2.3标准偏差的全局意义。在重型矢量三重态模型中，Spin-1 Z'和W'谐解以低于4.8 TEV的质量在95％的置信度（CL）下排除在外。这些限制是迄今为止最严格的。在散装重力模型中，分别以低于1.4和2.7 TEV的质量的Spin-2 Gravitons和Spin-0辐射在95％Cl下排除在1.4和2.7 TEV。通过载体玻色子融合的重谐振的产生受到95％Cl的上截面限制的限制，低至0.1 fb。
A search for new heavy resonances decaying to WW, WZ, ZZ, WH, or ZH boson pairs in the all-jets final state is presented. The analysis is based on proton-proton collision data recorded by the CMS detector in 2016-2018 at a centre-of-mass energy of 13 TeV at the CERN LHC, corresponding to an integrated luminosity of 138 fb$^{-1}$. The search is sensitive to resonances with masses between 1.3 and 6 TeV, decaying to bosons that are highly Lorentz-boosted such that each of the bosons forms a single large-radius jet. Machine learning techniques are employed to identify such jets. No significant excess over the estimated standard model background is observed. A maximum local significance of 3.6 standard deviations, corresponding to a global significance of 2.3 standard deviations, is observed at masses of 2.1 and 2.9 TeV. In a heavy vector triplet model, spin-1 Z' and W' resonances with masses below 4.8 TeV are excluded at the 95% confidence level (CL). These limits are the most stringent to date. In a bulk graviton model, spin-2 gravitons and spin-0 radions with masses below 1.4 and 2.7 TeV, respectively, are excluded at 95% CL. Production of heavy resonances through vector boson fusion is constrained with upper cross section limits at 95% CL as low as 0.1 fb.
