Precision test of the muon-Higgs coupling at a high-energy muon collider
Precision test of the muon-Higgs coupling at a high-energy muon collider
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DOI：
10.1007/jhep12(2021)162
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发表时间：
2021-08
影响因子：
5.4
通讯作者：
T. Han;W. Kilian;Nils Kreher;Yang Ma;J. Reuter;Tobias Striegl;K. Xie
中科院分区：
文献类型：
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作者：
T. Han;W. Kilian;Nils Kreher;Yang Ma;J. Reuter;Tobias Striegl;K. Xie
我们探索在高能μ子对撞机上直接测试μ子-希格斯耦合的灵敏度。如果存在与负责费米子质量生成的标准模型汤川相互作用不相符的新物理，那么这将是强烈的动机。我们举例说明了标准模型之外的一些物理例子。由于 μ 子汤川耦合的意外小值及其在多个（矢量和希格斯）玻色子的高能产生中的微妙作用，我们表明，通过利用三种玻色子的产生，可以以 10 TeV μ 子对撞机的百分之十的精度和 30 TeV 机器的百分之几的精度测量 μ 子-希格斯耦合，这可能对新的物理尺度敏感 Λ∼ 30− 100 TeV。
We explore the sensitivity of directly testing the muon-Higgs coupling at a high-energy muon collider. This is strongly motivated if there exists new physics that is not aligned with the Standard Model Yukawa interactions which are responsible for the fermion mass generation. We illustrate a few such examples for physics beyond the Standard Model. With the accidentally small value of the muon Yukawa coupling and its subtle role in the high-energy production of multiple (vector and Higgs) bosons, we show that it is possible to measure the muon-Higgs coupling to an accuracy of ten percent for a 10 TeV muon collider and a few percent for a 30 TeV machine by utilizing the three boson production, potentially sensitive to a new physics scale about Λ∼ 30− 100 TeV.