在FCC-ee上实现自然宽度精度的希格斯玻色子质量测量
Toward a Measurement of the Higgs Boson Mass with Natural-Width Precision at FCC-ee
AI总结：
该研究针对FCC-ee，提出利用轻子型ZH反冲道实现4 MeV精度的希格斯玻色子质量测量，以满足探测电子Yukawa耦合的需求，确定了所需的探测器与加速器性能。
AI中文摘要：
希格斯玻色子质量测量达到10 MeV以下的精度，可实现希格斯玻色子耦合的亚百分比确定，并避免希格斯玻色子质量成为电弱拟合的限制输入。通过共振希格斯玻色子产生探测电子Yukawa耦合，需要与希格斯玻色子自然宽度（约4 MeV）相当的精度。利用轻子型ZH反冲道，我们表明FCC-ee可实现包含统计和系统不确定性在内的4 MeV希格斯玻色子质量精度，从而实现这一独特测量，并确定达到该精度所需的探测器和加速器性能。
英文摘要：
Higgs boson mass measurements with sub-10 MeV precision enable sub-percent determinations of Higgs boson couplings and prevent the Higgs boson mass from becoming a limiting input to electroweak fits. Probing the electron Yukawa coupling through resonant Higgs boson production requires a precision comparable to the Higgs boson natural width of approximately 4 MeV. Using the leptonic ZH recoil channels, we show that FCC-ee can reach a Higgs boson mass precision of 4 MeV, including statistical and systematic uncertainties, thereby enabling this unique measurement. We identify the detector and accelerator performance required to reach this precision.
