Transversity parton distribution functions from lattice QCD
Constantia Alexandrou, Krzysztof Cichy, Martha Constantinou, Karl, Jansen, Aurora Scapellato, Fernanda Steffens
TL;DR
This paper reports the first direct lattice QCD calculation of the transversity parton distribution functions in the nucleon, utilizing physical quark masses and novel renormalization techniques.
Contribution
It introduces a pioneering lattice QCD approach to compute transversity PDFs with non-perturbative renormalization and matching to light-cone PDFs.
Findings
First direct lattice QCD calculation of transversity PDFs.
Results presented in the MS-bar scheme at 2 GeV scale.
Method includes non-perturbative renormalization and matching procedures.
Abstract
We present the first direct calculation of the transversity parton distribution function within the nucleon from lattice QCD. The calculation is performed using simulations with the light quark mass fixed to its physical value and at one value of the lattice spacing. Novel elements of the calculations are non-perturbative renormalization and extraction of a formula for the matching to light-cone PDFs. Final results are presented in the scheme at a scale of GeV.
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