论文标题
Higgs玻色子的电动耦合在多TEV MUON对撞机上
Electroweak Couplings of the Higgs Boson at a Multi-TeV Muon Collider
论文作者
论文摘要
我们估计多TEV MUON对撞机上的预期精度，用于测量使用Electroweak仪表玻色子，$ HVV $和$ HHVV \（V = W^\ pm，Z）$的Higgs玻色子耦合，以及TriLineAr Higgs Higgs Higgs higgs self-coupling $ hhh $。在很高的能量下，单人和双Higgs生产都依赖于矢量 - 玻璃融合（VBF）拓扑。即将出发的残余颗粒具有很强的趋势，即将留在非常向前的区域，从而导致“包容性过程”的配置，并使从$ ww $融合中隔离$ zz $融合事件变得困难。在单个希格斯频道中，我们使用两种类别对$ hww $和$ hzz $耦合进行了最大似然分析：包容性的希格斯生产和1-MUON独家信号。在Double Higgs频道中，我们考虑了包容性的生产，并研究了TriLinear $ HHH $和四分之一的$ VVHH $耦合的相互作用，并在不变的质谱中利用运动学信息。我们发现，在10个TEV（30 TEV）的质量中心能量中，其集成的光度为10 ab $^{ - 1} $（90 ab $^{ - 1} $），对于$ wwh $ couple $ couple couple coupl couple coupl coupl coupl coupl coupl couple coupl coupl coupl coupl coupling coupling％（0.023 \％）的95 \％置信度敏感性可能达到0.073 \％（0.023 \％）耦合，$ wwhh $耦合的0.62 \％（0.20 \％），$ HHH $耦合的5.6 \％（2.0 \％）。对于为流程做出贡献的DIM-6运营商，这些敏感性可以在10 TEV（30 TEV）MUON COLLIDER上以$ 1-10 $（$ 2-20 $）的订单探测新的物理规模$λ$。
We estimate the expected precision at a multi-TeV muon collider for measuring the Higgs boson couplings with electroweak gauge bosons, $HVV$ and $HHVV\ (V=W^\pm,Z)$, as well as the trilinear Higgs self-coupling $HHH$. At very high energies both single and double Higgs productions rely on the vector-boson fusion (VBF) topology. The outgoing remnant particles have a strong tendency to stay in the very forward region, leading to the configuration of the "inclusive process" and making it difficult to isolate $ZZ$ fusion events from the $WW$ fusion. In the single Higgs channel, we perform a maximum likelihood analysis on $HWW$ and $HZZ$ couplings using two categories: the inclusive Higgs production and the 1-muon exclusive signal. In the double Higgs channel, we consider the inclusive production and study the interplay of the trilinear $HHH$ and the quartic $VVHH$ couplings, by utilizing kinematic information in the invariant mass spectrum. We find that at a centre-of-mass energy of 10 TeV (30 TeV) with an integrated luminosity of 10 ab$^{-1}$ (90 ab$^{-1}$), one may reach a 95\% confidence level sensitivity of 0.073\% (0.023\%) for $WWH$ coupling, 0.61\% (0.21\%) for $ZZH$ coupling, 0.62\% (0.20\%) for $WWHH$ coupling, and 5.6\% (2.0\%) for $HHH$ coupling. For dim-6 operators contributing to the processes, these sensitivities could probe the new physics scale $Λ$ in the order of $1-10$ ($2-20$) TeV at a 10 TeV (30 TeV) muon collider.
