论文标题
在$ b \ bar {b}μ^+μ^ - $最终状态下搜索Higgs Boson对生产。
Search for the Higgs boson pair production in the $b\bar{b}μ^+μ^-$ final state at the LHC
论文作者
论文摘要
Higgs玻色子对通过gluon-gluon融合和矢量玻色子融合在$ b \ bar {b}μ^+μ^ - $最终状态进行研究，以探测higgs自耦合$κ_λ$和四个boson hhvvvvvvvvvv coupling $κ$κ__________________根据这些耦合的变化，对基于剪切的分析和使用增强决策树进行的机器学习分析进行了分类和优化。在整个HL-LHC运行之前，以不同的集成发光度提取预期的敏感性。 HH产量上95 \％置信度的预期上限是使用基于剪切的方法（增强的决策树）的标准模型横截面的47（28）倍，用于Gluon-Gluon融合产生的产生，为矢量玻色子融合产生的928，假定为3000 Fb $^{-1} $的矢量玻色子融合产生。在95 \％置信度下对耦合的预期限制为$ -13.8 <κ_λ<19.1 $（$ -10.0 <κ_λ<15.5 $）和$ -3.4 <κ__{\ rm {\ rm {2v}}}} <5.5 $，使用基于切割的方法（3.5 $）使用基于cut的方法（3.5 $） fb $^{ - 1} $。
The Higgs boson pair production via gluon-gluon fusion and vector boson fusion in the $b\bar{b}μ^+μ^-$ final state at the LHC is studied to probe the Higgs self-coupling $κ_λ$ and the four-boson HHVV coupling $κ_{\rm{2V}}$ for the first time. A cut-based analysis and a machine learning analysis using boosted decision trees are performed with categorizations and optimizations depending on the variations of these couplings. The expected sensitivities are extracted with different integrated luminosities assumed up to the full HL-LHC runs. The expected upper limit at 95\% confidence level on the HH production is calculated as 47 (28) times the Standard Model cross-section using the cut-based method (boosted decision trees) for the gluon-gluon fusion production, and 928 for the vector boson fusion production, assuming an integrated luminosity of 3000 fb$^{-1}$. The expected constraints on the couplings at 95\% confidence level are calculated to be $-13.8< κ_λ< 19.1$ ($-10.0< κ_λ< 15.5$) and $-3.4< κ_{\rm{2V}}< 5.5$ using the cut-based method (boosted decision trees), respectively, assuming an integrated luminosity of 3000 fb$^{-1}$.
