论文标题
$ z'$和$ w'$玻色子的更新约束,使用2 Atlas Data腐烂到玻璃体和轻质的最终状态
Updated constraints on $Z'$ and $W'$ bosons decaying into bosonic and leptonic final states using the Run 2 ATLAS data
论文作者
论文摘要
完整的地图集在Diboson和Dilepton Channels中使用时间集成的亮度为139 fb $^{ - 1} $的整个数据集,用于探测具有扩展轨距扇区的基准模型:$ e_6 $ the $ e_6 $ - 动机的大统一型号,左右 - 符号符号$ lr $ lr $ lr $和sequential Standard(Egm)。这些都可以预测中性$ Z'U $ vector Bosons,腐烂到Lepton对,$ \ ell \ ell $,或者进入Electroweak仪表玻色子对$ ww $,其中一个$ w $在半衰减中衰减。 95%C.L. $ z'$ resonance生产横截面的排除限制与electroweak量规玻色子对的分支率和在$ \ sim $ 1-6的质量范围内的Lepton对转换为$ z $ -Z $ -Z $ Z'$混合参数和重源共振质量的约束。我们介绍了$ z'$的参数空间的排除区域,与从运行1中的7和8 TEV收集的LHC数据进行的先前分析中,该分析以及在时间融合的36.1 fb $^{ - 1} $和最严格的范围中所获得的LHC数据以及13 tev中的LHC数据进行了显着扩展。还通过对EGM产生的电荷$ W'$玻色子进行类似分析,该分析可以通过$ w'\ to wz $腐烂到wz $,而$ w'\ to \ellν$是$ w $ - $ w'$混合参数的限制,而收费的$ w'$ w'u'$ vector boson boson Mass。
The full ATLAS Run 2 data set with time-integrated luminosity of 139 fb$^{-1}$ in the diboson and dilepton channels is used to probe benchmark models with extended gauge sectors: the $E_6$-motivated Grand Unification models, the left-right symmetric $LR$ and the sequential standard model (EGM). These all predict neutral $Z'$ vector bosons, decaying into lepton pairs, $\ell\ell$, or into electroweak gauge boson pairs $WW$, where one $W$ in turn decays semileptonically. 95% C.L. exclusion limits on the $Z'$ resonance production cross section times branching ratio to electroweak gauge boson pairs and to lepton pairs in the mass range of $\sim$ 1 - 6 TeV are converted to constraints on the $Z$-$Z'$ mixing parameter and the heavy resonance mass. We present exclusion regions on the parameter space of the $Z'$ which are significantly extended compared to those obtained from the previous analyses performed with LHC data collected at 7 and 8 TeV in Run 1 as well as at 13 TeV in Run 2 at time-integrated luminosity of 36.1 fb$^{-1}$ and are the most stringent bounds to date. Also presented, from a similar analysis of electrically charged $W'$ bosons arising in the EGM, which can decay through $W'\to WZ$ and $W'\to \ellν$, are limits on the $W$-$W'$ mixing parameter and the charged $W'$ vector boson mass.