AI 中文总结
研究强子型希格斯衰变中的重喷注质量，利用软共线有效理论中的因子分解定理，在双喷注和三喷注极限下计算到相应阶数并匹配NNLO，研究三喷注区域苏达科夫肩区，提供了重喷注质量的最新预测，可用于未来对撞机希格斯测量。
AI 中文摘要
在双喷注极限下，强子型希格斯衰变中的重喷注质量分布被计算到次下下领先对数阶（N${}^3$LL${}^\prime$），在三喷注极限下为NNLL，并与次下领先阶（NNLO）相匹配。两个重整化结果均从软共线有效理论中的因子分解定理得出。特别研究了三喷注区域的苏达科夫肩区，源于不同部分子多重性的末态间红外奇点的不完全抵消，将诱导的大对数重整到所有阶。肩区重整产生可观修正并改善分布的微扰稳定性。结果为$H \to gg$和$H\to q\bar{q}$中的重喷注质量提供了最新预测，可应用于未来$e^+e^-$对撞机的精确希格斯测量。
英文摘要
The heavy jet mass distributions in hadronic Higgs decays are computed to next-to-next-to-next-to-leading logarithmic order (N${}^3$LL${}^\prime$) in the dijet limit and NNLL in the trijet limit, matched to the next-to-next-to-leading order (NNLO). Both resummation results are obtained from the factorization theorems in Soft-Collinear Effective Theory. In particular, we study the Sudakov shoulders in the trijet region, originating from the incomplete cancellation of infrared singularities between final states with different parton multiplicities, and resum the induced large logarithms to all orders. The shoulder resummation yields sizable corrections and improves the perturbative stability of the distribution. Our results provide state-of-the-art predictions for heavy jet mass in $H \to gg$ and $H\to q\bar{q}$ and can be applied to precision Higgs measurements at future $e^+e^-$ colliders.
Comments41 pages + appendices, 12 figures
