Search for heavy ZZ resonances in the $
Search for heavy ZZ resonances in the $
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发表时间：
2018
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本文提出了一种寻找重共振衰变成一对Z玻色子，导致+ − + −和+ − ν最终态的方法，其中，v代表电子或μ子。该搜索使用质子-质子碰撞数据，质心能量为13 TeV，对应于2015年和2016年在大型强子对撞机上使用ATLAS探测器收集的36.1 fb−1的积分光度。根据最终状态和模型，考虑假设共振的不同质量范围。不同的范围介于200和2000 GeV之间。结果被解释为自旋0或自旋2共振的生产截面的上限。自旋0共振的上限被翻译成排除轮廓的上下文中的类型-I和类型-II的两个希格斯偶线模型，而自旋2共振的上限被用来约束兰德尔-Sundrum模型与额外的维度引起自旋2引力子激发。
A search for heavy resonances decaying into a pair of Z bosons leading to + − + − and + −νν̄ final states, where stands for either an electron or a muon, is presented. The search uses proton–proton collision data at a centre-of-mass energy of 13 TeV corresponding to an integrated luminosity of 36.1 fb−1 collected with the ATLAS detector during 2015 and 2016 at the Large Hadron Collider. Different mass ranges for the hypothetical resonances are considered, depending on the final state and model. The different ranges span between 200 and 2000 GeV. The results are interpreted as upper limits on the production cross section of a spin-0 or spin-2 resonance. The upper limits for the spin-0 resonance are translated to exclusion contours in the context of Type-I and Type-II two-Higgs-doublet models, while those for the spin-2 resonance are used to constrain the Randall–Sundrum model with an extra dimension giving rise to spin-2 graviton excitations.