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Lattice QCD Calculations of TMD Soft Function through Large-Momentum Effective Theory
by
Dr其安 张
→
Asia/Shanghai
318 (shu'li'lou)
318
shu'li'lou
北京市朝阳区平乐园100hao
Description
简介：张其安，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生博士后。主要研究方向为重味物理与强子结构等相关领域。
摘要：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.
