Nuclear Physics B ( IF 2.5 ) Pub Date : 2020-12-09 , DOI: 10.1016/j.nuclphysb.2020.115274 H. Denizli , A. Senol
We study the CP-conserving and CP-violating dimension-six operators of Higgs-gauge boson couplings via 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 , , and 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 with an integrated luminosity of 30 ab−1 without systematic error are at least one order or better than current experimental limits reported by ATLAS experiment. Even with systematic error, we find comparable limits with current experimental results.
中文翻译:
通过FCC-hh产生双光子在有效拉格朗日中异常希格斯玻色子相互作用的预期约束
我们通过以下方法研究了希格斯规范玻色子联轴器的守恒和守恒违反维数六维算子 强相互作用光中基于希格斯的有效场论框架中的信号过程,其质量能量中心为100 TeV。为了执行包括逼真的检测器效果的模拟,存在以下情况的信号事件, , 和 Wilson系数和相关的SM背景事件在MadGraph中生成,然后通过Pythia 8进行部分淋浴,最后使用FCC-hh检测器卡运行Delphes。在我们的分析中,我们关注信号最终状态下的两个光子的运动学变量以及可以重构希格斯玻色子的相关背景过程。我们使用具有优化运动学重构的双光子系统的横向动量分布,获得了对六维算子的四个威尔逊系数的约束。获得的这四个Wilson系数的95%置信度极限,包括探测器在具有30 ab -1的综合光度而没有系统误差的结果至少比ATLAS实验报告的当前实验极限高一个数量级或更好。即使 系统误差,我们可以找到与当前实验结果相当的极限。