论文标题
观察Electroweak W $^+$ W $^ - $ PAIR生产与$ \ sqrt {s} $ \ sqrt {s} $ = 13 TEV的两种喷气式proton-proton碰撞
Observation of electroweak W$^+$W$^-$ pair production in association with two jets in proton-proton collisions at $\sqrt{s}$ = 13 TeV
论文作者
论文摘要
据报道，据报道，与两只喷气式飞机相关的w $^+$ w $^ - $ $ $ $^ - 两种W玻色子都腐烂了。数据样本对应于proton-proton碰撞的138 fb $^{ - 1} $在$ \ sqrt {s} $ = 13 tev的质子碰撞，由cser detector收集的Cern LHC。通过恰好需要两个相反的瘦素（电子或MUON）和两个具有较大伪率分离的喷气机和较高的Dijet不变质量来选择事件。事件是根据最终状态瘦素的风味对事件进行分类的。相对于仅背景假设，观察到一个信号，其显着性为5.6标准偏差（5.2）。测量的基准横截面为10.2 $ \ pm $ 2.0 fb，此值与9.1 $ \ pm $ 0.6 fb的标准模型预测一致。
An observation is reported of the electroweak production of a W$^+$W$^-$ pair in association with two jets, with both W bosons decaying leptonically. The data sample corresponds to an integrated luminosity of 138 fb$^{-1}$ of proton-proton collisions at $\sqrt{s}$ = 13 TeV, collected by the CMS detector at the CERN LHC. Events are selected by requiring exactly two opposite-sign leptons (electrons or muons) and two jets with large pseudorapidity separation and high dijet invariant mass. Events are categorized based on the flavor of the final-state leptons. A signal is observed with a significance of 5.6 standard deviations (5.2 expected) with respect to the background-only hypothesis. The measured fiducial cross section is 10.2 $\pm$ 2.0 fb and this value is consistent with the standard model prediction of 9.1 $\pm$ 0.6 fb.
