Speaker
Description
I will talk about a factorization formula for gauge-theory scattering amplitudes up to two loops in the high-energy boosted limit at leading power, which is then used to give the prediction for the production of a Higgs boson in association with a top-antitop quark pair ($t\bar{t}H$) at next-to-next-to-leading order (NNLO). This process holds significant importance in directly probing the top-quark Yukawa coupling and relates to various fundamental questions in high energy physics. I will focus on the factorization and calculation of two-loop amplitudes for $t\bar{t}H$ production at hadron colliders in the high-energy boosted limit. By combining the contributions from real emissions, our results can be utilized to compute the NNLO differential cross sections for $t\bar{t}H$ production in the high-energy boosted limit. This talk is mainly based on our two recent published papers JHEP 05 (2024) 082 and JHEP 07 (2024) 121.
