Lattice-QCD Calculations of TMD Soft Function Through LMET-湖南大学物理与微电子科学学院

Lattice-QCD Calculations of TMD Soft Function Through LMET

创建于2020年07月06日星期一作者 : 科研办浏览量 :

Speaker：张其安，上海交通大学
Time：2020/7/25,10:00-11:00 (GMT＋8)
Tencent Meeting ID: 633 417 380
Contact：程山

Abstract: The transverse-momentum-dependent (TMD) soft function is a key ingredient in QCD factorization of Drell-Yan and other processes with relatively small transverse momentum. We present a lattice QCD study of this function at moderately large rapidity on a 2+1 flavor CLS dynamic ensemble with a = 0.098 fm. We extract the rapidity-independent part of the soft function through a large-momentum-transfer pseudo-scalar meson form factor and its quasi-TMD wave function using leading-order factorization in large-momentum effective theory. We also investigate the rapidity-dependent part of the soft function—the Collins-Soper evolution kernel—based on the large-momentum evolution of the quasi-TMD wave function.

About the speaker：张其安，2016年博士毕业于中国科学院高能物理研究所，现为上海交通大学李政道研究所博士后（博新计划）。主要研究方向为重味物理与强子结构等相关领域。