论文标题
通过FCC-HH的二光子产生的有效的Lagrangian中异常的Higgs玻色子相互作用的前瞻性限制
Prospective constraints on anomalous Higgs boson interactions in an effective Lagrangian via diphoton production at FCC-hh
论文作者
论文摘要
我们通过$ pp \toγγ$+n-jet信号过程在强烈相互作用的光HIGGS中，基于质量的有效的现场理论框架，在质量能量的中心，通过$ pp \toγγ$+n-jet信号过程研究了Higgs-gauge玻色子耦合的CP和CP侵入尺寸六个操作员。为了执行包含现实检测效果的模拟，存在$ \ bar {c}_γ$，$ \ tilde {c}_γ$，$ \ bar {c} _ {g} $和$ \ tilde {c} _ { 8用于Parton淋浴，最后用FCC-HH检测器卡运行Delphes。在我们的分析中，我们关注可以重建希格斯玻色子的信号和相关背景过程的最终状态和相关背景过程中两个光子的运动学变量。我们使用重建的Di-Photon系统的横向动量分布，并具有优化的运动学切割。在这四个Wilson系数上获得了95 \％的置信度限制，包括$ \ sqrt S $ = 100 TEV的检测器效应，其集成光度为30 AB $^{ - 1} $，没有系统误差至少比Atlas实验报告的当前实验限制至少要高。即使有$δ_{sys} = 2 \％$系统错误，我们发现与当前实验结果相当的限制。
We study the CP-conserving and CP-violating dimension-six operators of Higgs-gauge boson couplings via $pp\toγγ$+n-jet signal process in a strongly interacting light Higgs based effective field theory framework at the center of mass energy of 100 TeV. In order to perform a simulation which includes realistic detector effects, the signal events in the existence of $\bar{c}_γ $, $\tilde{c}_γ$, $\bar{c}_{g} $ and $\tilde{c}_{g}$ Wilson coefficients and the relevant SM background events are generated in MadGraph, then passed through Pythia 8 for parton showering and finally run Delphes with FCC-hh detector card. In our analysis, we focus on the kinematic variables of the two photons in the final states of signal and relevant background processes that can reconstruct Higgs boson. We obtain constraints on the four Wilson coefficients of dimension-six operators using the transverse momentum distribution of reconstructed di-photon system with optimized kinematic cuts. The obtained 95\% confidence level limits on these four Wilson coefficients including detector effects at $\sqrt s$=100 TeV with an integrated luminosity of 30 ab$^{-1}$ without systematic error are at least one order or more better than current experimental limits reported by ATLAS experiment. Even with $δ_{sys}=2 \%$ systematic error, we find comparable limits with current experimental results.
