Infrared singularities of QCD amplitudes with a massive parton

by Dr 泽茏 刘 (CERN)

Monday 27 Nov 2023, 15:00 → 16:00 Asia/Shanghai

B105 (CHEP)

The knowledge of infrared singularities of gauge-theory amplitudes enables us to systematically resum large logarithmic corrections to many important observables. In this talk, I will present the structure of anomalous dimensions governing infrared singularities of QCD amplitudes with one massive and an arbitrary number of massless external partons. The analytical expression of tripole correlations involving one massive parton is obtained at three loops for the first time. The results are essential to improve the theoretical predictions of single top and top quark pair productions at hadron colliders.

个人简介：刘泽茏，2011年获得南开大学学士学位，2016年获得北京大学博士学位。随后在美因茨大学、洛斯阿拉莫斯国家实验室、伯尔尼大学从事博士后研究。现为CERN fellow。2023年12月将入职高能所任副研究员。