Sudakov Resummation for EEC from Local Operator Product Expansion

HuaXing Zhu (Peking U)

Aug 29. 2023, 11:30 — 12:30

Energy-Energy Correlation (EEC) measures the energy-weighted angular correlation of pair of particles in e+e- collisions. In the back-to-back limit, EEC exhibits typical Sudakov double logarithms that can be resummed using standard TMD factorization formula. In this talk I will present a new approach to the resummation of Sudakov double logarithms for EEC, which involves the utilization of a local operator product expansion, conformal block, and large spin summation. I will show that classical conformal symmetry of massless QCD lagrangian can be used to resummed certain power corrections in the back-to-back region. To illustrate the effectiveness of this approach, I will demonstrate its application using the N=4 Supersymmetric Yang-Mills theory as an example. Additionally, I will touch upon the potential generalization of this approach to QCD.

Further Information
ESI Schrödinger Lecture Hall
Associated Event:
Quantum Field Theory at the Frontiers of the Strong Interaction (Thematic Programme)
André H. Hoang (U of Vienna)
Simon Plätzer (U of Graz)
Massimiliano Procura (U of Vienna)
Malin Sjödahl (Lund U)
Iain Stewart (MIT, Cambridge)