论文标题
使用矩的方法对黄金通道进行完全差异的SMEFT分析
A fully differential SMEFT analysis of the golden channel using the method of moments
论文作者
论文摘要
矩的方法是一个有力的框架，可以解散特定过程对其各个相空间区域的相对贡献。我们应用此方法对希格斯衰减通道$ h \ to 4 \ ell $进行完全差异分析，并限制了通过dimension-six-six有效运算符参数参数的量规Higgs耦合修改。我们发现，这种分析方法提供了很好的约束，并最大程度地减少了有效理论的参数空间中的脱色类。通过将衰减$ h \与4 \ ell $与Higgs相关的生产过程，$ WH $和$ ZH $组合，我们获得了关于异常的量规耦合的最强报告界限。
The Method of Moments is a powerful framework to disentangle the relative contributions of amplitudes of a specific process to its various phase space regions. We apply this method to carry out a fully differential analysis of the Higgs decay channel $h \to 4\ell$ and constrain gauge-Higgs coupling modifications parametrised by dimension-six effective operators. We find that this analysis approach provides very good constraints and minimises degeneracies in the parameter space of the effective theory. By combining the decay $h \to 4\ell$ with Higgs-associated production processes, $Wh$ and $Zh$, we obtain the strongest reported bounds on anomalous gauge-Higgs couplings.
