论文标题
$ t \ bar {t} h $互动和强子相关性
$t\bar{t}H$ Interactions and T-odd Correlations at Hadron Colliders
论文作者
论文摘要
我们探索了$ \ Mathcal CP $ - 侵入的效果，在与顶型的高Quark型玻色子的相关生产中与顶级的相关生产中，来自Proton Proton Collisions $ pp \ pp \ to top-Quark的dialeptonic Decay模式\ bar {b}）h $ in qcd中的nlo使用T-ODD可观测值使用该过程中涉及的各种粒子的矩形匹配。特别是，我们可以预测$ \ Mathcal CP $ - 抗化$ t \ bar {t} h $耦合通过与t-odd可观察的t-odd可观察到的$ t \ bar {t} $配对的t-odd decay通道相关的不对称性获得的约束。 fb $^{ - 1} $。我们还提出了未来强子山脉的相应限制，即高光度LHC（HL-LHC）和未来的圆形对撞机（FCC-HH）。我们对$ t \ bar {t} h $相互作用强度的估计表明，对应于最大的不对称的伪符合耦合$ C_P $的上限约为$ 1.96 \ times 10^{ - 2} $ 2.5 $σ$ C.L.对于$ c_s $ = 1，在LHC上使用$ \ sqrt {s} $ = 13 tev，用于139 fb $^{ - 1} $的集成光度。发现HL-LHC和FCC-HH的相应限制的限制为3 ab $^{ - 1} $和30 Ab $^{ - 1} $的限制为$ 3.4 \ times 10^{ - 3} $和$ 1.6 \ $ 1.6 \ times 10^{ - 4} $，分别为2.5 $ c.l.c.l. c.l. c.l. c.l. c.l. c.l. c.l. c.l. c.l. c.l. c.l.
We explore $\mathcal CP$-violation effects of Higgs-top interactions in the associated production of a Higgs boson with top-pair in the dileptonic decay modes of top-quark originating from proton proton collisions $pp \to t\bar{t}H \to (l^+ ν_l b)(l^{-} \bar{ν_l} \bar{b})H$ at NLO in QCD matched to parton shower via T-odd observables using momenta of various particles involved in the process. In particular, we predict the constraints on the $\mathcal CP$-violating $t\bar{t}H$ coupling obtained through the production asymmetries associated with the T-odd observables in the dileptonic decay channel of the $t\bar{t}$ pair for the LHC with centre-of-mass energy of 13 TeV and an integrated luminosity of 139 fb$^{-1}$. We also present the corresponding limits for future hadron colliders, namely the High Luminosity LHC (HL-LHC) and the Future Circular Collider (FCC-HH). Our estimates of the $t\bar{t}H$ interaction strength reveal that the upper bound on pseudoscalar coupling $c_p$ corresponding to the largest asymmetry would be of about $1.96 \times 10^{-2}$ at 2.5$σ$ C.L. for $c_s$ = 1 at the LHC with $\sqrt{S}$ = 13 TeV for an integrated luminosity of 139 fb$^{-1}$. The respective limits for HL-LHC and FCC-hh with the projected Luminosities of 3 ab$^{-1}$ and 30 ab$^{-1}$ are found to be to $3.4\times 10^{-3}$ and $1.6\times 10^{-4}$ respectively at 2.5$σ$ C.L.
