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完整的下一个领先顺序标准模型有效场理论 希格斯衰变的电弱校正
Luigi Bellafronte1, Sally Dawson2, Clara Del Pio2
1Florida State University, Physics Department, Tallahassee, Florida 32306-4350, USA.
Physical review letters
|February 22, 2026
概括
使用标准模型有效场理论 (SMEFT) 精确的希格斯衰变预测增强了对新物理学的搜索. 下一个领先的订单计算提高了未来的碰撞器的灵敏度,如FCC-ee.
科学领域:
- 高能物理 高能物理
- 粒子物理学 粒子物理学
- 量子场理论 量子场理论
背景情况:
- 精确的希格斯衰变预测对于超越标准模型的搜索至关重要.
- 标准模型有效场理论 (SMEFT) 量化了与标准模型的偏差.
研究的目的:
- 为两体和三体希格斯衰变提供完整的下一个领先的顺序预测.
- 将QCD和电弱校正纳入6维SMEFT框架.
- 评估这些预测对未来碰撞机灵敏度的影响.
主要方法:
- 在QCD和电弱相互作用中,计算的希格斯衰变处于下一个领先顺序 (NLO).
- 包含所有具有任意风味结构的6维SMEFT操作员.
- 在FCC-ee. . 分析了e^{+}e^{-}→Zh过程的灵敏度.
主要成果:
- 对于希格斯衰变的完整NLO SMEFT预测现在已经可用了.
- 这些预测包括全面的QCD和电弱校正.
- 纳入NLO SMEFT结果显著提高了FCC-ee对新物理学的敏感性.
结论:
- 对希格斯衰变的SMEFT预测对于超越标准模型搜索至关重要.
- 在FCC-ee的e^{+}e^{-}→Zh过程显示,随着这些改进的预测,灵敏度大大增加.
- 这项工作为探索未来撞击器的新物理提供了至关重要的工具.
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