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Two-Loop renormalization of High-Dimensional QCD operators and Higgs EFT amplitudes

by Qingjun Jin, Ke Ren, Gang Yang and Rui Yu

Submission summary

As Contributors: Gang Yang
Preprint link: scipost_202110_00022v1
Date submitted: 2021-10-14 06:53
Submitted by: Yang, Gang
Submitted to: SciPost Physics Proceedings
Proceedings issue: RADCOR 2021 (15th International Symposium on Radiative Corrections: Applications of Quantum Field Theory to Phenomenology)
Academic field: Physics
Specialties:
  • High-Energy Physics - Theory
  • High-Energy Physics - Phenomenology
Approach: Theoretical

Abstract

We consider two-loop renormalization of high-dimensional operators in QCD and the relevant Higgs EFT amplitudes. Efficient unitarity-IBP strategy is used to compute the two-loop minimal form factors of length-3 operators up to dimension sixteen. From the ultraviolet divergences of form factor results, we extract the renormalization matrices and compute anomalous dimensions. We also obtain the analytic finite remainder functions which exhibit several universal transcendentality structures. The form factors we compute are equivalent to Higgs plus three-gluon amplitudes that capture high-order top mass corrections in Higgs effective field theory.

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Submission scipost_202110_00022v1 on 14 October 2021

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