Lattice QCD calculations of nucleon transverse momentum-dependent parton distributions using clover and domain wall fermions
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- Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
- New Mexico State Univ., Las Cruces, NM (United States)
- Johannes Gutenberg-Univ. Mainz, Mainz (Germany)
- Univ. Regensburg, Regensburg (Germany)
- Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)
- Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
Here, 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 nf = 2+1 ensembles: domain-wall fermion (DWF) with lattice spacing 0:084fm 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.
- Research Organization:
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC52-06NA25396
- OSTI ID:
- 1356129
- Report Number(s):
- LA-UR-15-29077
- Journal Information:
- PoS Proceedings of Science, Vol. 116; Conference: The 33rd International Symposium on Lattice Field Theory (LATTICE2015), Kobe (Japan), 14 Jul 2015; ISSN 1824-8039
- Publisher:
- SISSA
- Country of Publication:
- United States
- Language:
- English
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