Lattice QCD Calculations of Transverse-Momentum-Dependent Soft Function through Large-Momentum Effective Theory

URN to cite this document:: urn:nbn:de:bvb:355-epub-454381
DOI to cite this document:: 10.5283/epub.45438

Zhang, Qi-An ; Hua, Jun ; Huo, Yikai ; Ji, Xiangdong ; Liu, Yizhuang ; Liu, Yu-Sheng ; Schlemmer, Maximilian ; Schäfer, Andreas ; Sun, Peng ; Wang, Wei

; Yang, Yi-Bo

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Date of publication of this fulltext: 01 Apr 2021 13:30

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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 (or intrinsic) part of the soft function through a ...