Speaker
Description
50 Years after the establishment of Quantum Chromodynamics (QCD), gaining first-principle comprehension of non-perturbative effects of QCD is still challenging. Lattice QCD methods have made huge progresses in this direction, including calculation of Parton Distribution Functions (PDF). However, the intricate Lorentzian dynamics underlying hadronization effects continue to elude a satisfactory explanation. Event shape observables in collider physics provide an excellent opportunity to investigate these phenomena. Despite the absence of first-principle calculations, enhanced theoretical understanding could offer a way to parameterize these non-perturbative effects.
In this talk, we will present how new theoretical concepts could guide us to parametrize hadronization effects in energy correlators, which are one of the most interesting observables for their universality and nice symmetry structures. In particular, we will focus on the collinear limit where the application of light-ray Operator Product Expansion (OPE) technique become viable. Similar to local operators' role in PDF evolution, light-ray operators govern the evolution of hadronization effects in energy correlators. We conclude by using Monte Carlo simulation data to validate this idea.