Innovating Slicing Methods for Systematic and Efficient Collider Phenomenology at N3LO

by Gherardo Vita (CERN)

Thursday 24 Apr 2025, 15:10 → 16:10 Asia/Shanghai

B105 (CHEP)

Achieving next-to-next-to-next-to-leading order (N3LO) precision is critical to addressing the stringent demands of the High-Luminosity LHC (HL-LHC) physics program, where enhanced predictive power is essential for exploring subtle effects in collider phenomenology. 
In this talk, I will motivate the importance of achieving N3LO accuracy efficiently and systematically, and review key aspects of subtraction methods, with a focus on slicing, which has been instrumental in enabling the first fully differential N3LO predictions at the LHC.
I will outline the key theoretical ingredients required for such computations and highlight recent advancements, including the work on N3LO power corrections for 0-jettiness and the development of projection-to-Born improved slicing techniques. These innovations represent significant steps toward the systematic realization of N3LO precision for a broad range of LHC processes, offering a robust foundation for addressing the HL-LHC's precision frontier.

简介：Gherardo Vita于2020年博士毕业于MIT，2020-2023年在SLAC从事博士后研究，2023年至今任CERN研究助理。他的主要研究方向是有效场论，微扰量子色动力学和对撞机物理。