LaMET 2021 Online

Collins-Soper kernel from transverse momentum-dependent wave functions in LaMET

9 Dec 2021, 08:55

20m

Zoom

Session I

Speaker

Min-Huan Chu (Shanghai Jiao Tong University)

Description

In this work we present the transversity $b_{\perp }$-dependence Collins-Soper kernel extracted from pion transverse momentum dependent wave functions in the framework of large momentum effective theory from lattice QCD. We use clover fermion action with $2+1+1$ flavors of highly improved staggered quarks (HISQ), generated by MILC Collaboration. A single ensemble is used, with lattice spacing $a=0.12$fm and volume as $L^3\times T={48}^3\times 64$. The results are presented based on pion mass $M_{\pi }=670$MeV, and three hadron momenta as $P^z=2\pi /L\times \{8,10,12\}=\{1.72,2.15,2.58\}$GeV. The result of Collins-Soper kernel is determined of joint fit through momentum pairs.

Presentation materials

LaMET2021.pdf