论文标题
在LHC的LHC上，在LHC的两体和三体旋转相关性上
On two-body and three-body spin correlations in leptonic $t\bar{t}Z$ production and anomalous couplings at the LHC
论文作者
论文摘要
我们在$ t \ bar {t} z $生产中以$ 13 $ tev lhc的价格研究了$ t \ bar {t} z $生产中的异常$ t \ bar {t} z $耦合。我们使用顶级夸克和$ z $玻色子的极化，两体和三体旋转相关性和$ z $ boson之间以及横截面来探测异常的耦合。我们估计一个参数和同时限制有效顶点的耦合以及一组灯具的有效操作员$ 150 $ fb $^{ - 1} $，$ 300 $ fb $^{ - 1} $，$ 1000 $ fb $ fb $ fb $^{ - 1} $，和3000美元$ fb $ fb $ fb $ fb $ fb $ fb^$}。发现极化和自旋相关性在横截面的顶部有帮助，以更好地限制异常耦合。
We study the anomalous $t\bar{t}Z$ couplings in the $t\bar{t}Z$ production in leptonic final state at the $13$ TeV LHC. We use the polarizations of top quarks and $Z$ boson, two-body and three-body spin correlations among the top quarks and $Z$ boson, and the cross section to probe the anomalous couplings. We estimate one parameter and simultaneous limits on the couplings of the effective vertex as well as the effective operators for a set of luminosities $150$ fb$^{-1}$, $300$ fb$^{-1}$, $1000$ fb$^{-1}$, and $3000$ fb$^{-1}$. The polarizations and the spin correlations are found to be helpful on top of the cross section to better constrain the anomalous couplings.
