Nearby in the stack

Lattice QCD calculations of nucleon transverse momentum-dependent parton distributions using clover and domain wall fermions · arXivDesk

1601.05717Jan 21, 20167 pages, Proceedings of the 33rd International Symposium on Lattice Field Theory (LATTICE2015), Kobe, Japan, 14-18 July 2015

Lattice QCD calculations of nucleon transverse momentum-dependent parton distributions using clover and domain wall fermions

B. Yoon, T. Bhattacharya, M. Engelhardt, J. Green, R. Gupta, P. Hägler, B. Musch, J. Negele +2

Lattice

arXiv PDF

Abstract

We present a lattice QCD calculation of transverse momentum dependent parton distribution functions (TMDs) of protons using staple-shaped Wilson lines. For time-reversal odd observables, we calculate the generalized Sivers and Boer-Mulders transverse momentum shifts in SIDIS and DY cases, and for T-even observables we calculate the transversity related to the tensor charge and the generalized worm-gear shift. The calculation is done on two different n_f=2+1 ensembles: domain-wall fermion (DWF) with lattice spacing 0.084 fm and pion mass of 297 MeV, and clover fermion with lattice spacing 0.114 fm and pion mass of 317 MeV. The results from those two different discretizations are consistent with each other.

Briefing

What this paper is actually doing

This is a heuristic sketch from the abstract. Sign in for a live briefing.

GraduateNovelty 3/5

Researchers working in hep-lat and adjacent areas.

Claims

The paper addresses: Lattice QCD calculations of nucleon transverse momentum-dependent parton distributions using clover and domain wall fermions.
We present a lattice QCD calculation of transverse momentum dependent parton distribution functions (TMDs) of protons using staple-shaped Wilson lines.

Methods

Method details are not extracted without an AI key — open the PDF or HTML version.
Author comment: 7 pages, Proceedings of the 33rd International Symposium on Lattice Field Theory (LATTICE2015), Kobe, Japan, 14-18 July 2015