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Abstract：
We demonstrate that gluon transverse-momentum-dependent parton distribution functions (TMDPDFs) can be extracted from lattice calculations of appropriate Euclidean correlations in large-momentum effective theory (LaMET). Based on perturbative calculations of gluon unpolarized and helicity TMDPDFs, we present a matching formula connecting them and their LaMET counterparts, where the latter are renormalized in a scheme facilitating lattice calculations and converted to the MSbar scheme. The hard matching kernel is given up to one-loop level. We also show that the perturbative result is independent of the prescription used for the pinch-pole singularity in the relevant correlations. Our results offer a guidance for the extraction of gluon TMDPDFs from lattice simulations, and have the potential to greatly facilitate perturbative calculations of the hard matching kernel.
Biography:
Ruilin Zhu received his PhD in 2014 from UCAS, and held a postdoc position at Shanghai Jiao Tong University from 2014 to 2016, before joining School of Physics Science and Technology at Nanjing Normal University as an associate professor. His research mainly focuses on Heavy Flavor Physics and Quantum Chromodynamics Theory. He was appointed as a member of youth editorial board for Frontiers of Physics (FOP). He was awarded as “Outstanding Youth Key Teacher of Jiangsu Province” in 2018 and selected into “Top 2% of Scientists on Stanford List” in 2022.
Online meeting room： https://meeting.tencent.com/dm/3JKNGLCyRr1u (id: 642999898 passcode: 123456）
Host：Prof. Wei Wang