论文标题
将来的$ e^+ e^ - $ colliders的Higgs，顶部和电湿精度测量值；结合有效的现场理论分析与重新归一化混合
Higgs, top and electro-weak precision measurements at future $e^+ e^-$ colliders; a combined effective field theory analysis with renormalization mixing
论文作者
论文摘要
本文对标准模型有效场理论（SMEFT）的HIGGS，TOP和Electro-Weak（EW）领域（SMEFT）的限制了未来电子峰对撞机的潜力的组合分析。涉及顶级夸克的运营商的主要贡献主要是在一环抑制的顺序下出现，并且可以由重新归一化组与HIGGS运营商混合捕获。我们以29个参数（包括Higgs and Top Operators）的扩展基础对HIGGS，TOP和Electro-Weak精度测量的预测进行了全球拟合。在ILC的250 GEV阶段，HIGGS玻色子耦合的测定最初会因其他顶级自由度而严重降低，但几乎可以通过在LHC处的顶级Quark EW耦合的精确测量来完全恢复。物理希格斯耦合相对稳健，因为顶部质量大于EW过程的能量尺度。顶级操作员对Wilson系数的边界的影响更为明显，并且可能会限制我们确定与标准模型偏差源的能力。仅当包括ILC的500 GEV阶段时，才能获得所有Wilson系数的稳健全局界限。
This paper presents a combined analysis of the potential of a future electron-positron collider to constrain the Higgs, top and electro-weak (EW) sectors of the Standard Model Effective Field Theory (SMEFT). The leading contributions of operators involving top quarks arise mostly at one-loop suppressed order and can be captured by the renormalization group mixing with Higgs operators. We perform global fits with an extended basis of 29 parameters, including both Higgs and top operators, to the projections for the Higgs, top and electro-weak precision measurements at the International Linear Collider (ILC). The determination of the Higgs boson couplings in the 250 GeV stage of the ILC is initially severely degraded by the additional top-quark degrees of freedom, but can be nearly completely recovered by the inclusion of precise measurements of top-quark EW couplings at the LHC. The physical Higgs couplings are relatively robust, as the top mass is larger than the energy scale of EW processes. The effect of the top operators on the bounds on the Wilson coefficients is much more pronounced and may limit our ability to identify the source of deviations from the Standard Model. Robust global bounds on all Wilson coefficients are only obtained when the 500 GeV stage of the ILC is included.
