Extracting parton distribution functions from lattice QCD calculations
By Yan-Qing Ma, J. Qiu. Physical Review D, 2014
134 citations recorded by the source corpus.
Parton distribution functions (PDFs) are nonperturbative quantities describing the relation between a hadron and the quarks and gluons within it. We propose to extract PDFs from QCD global analysis of “data” generated by lattice QCD calculations of good “lattice cross sections,” which are basically single-hadron matrix elements that are lattice QCD calculable and perturbative QCD factorizable into the PDFs. To demonstrate the existence of good “lattice cross sections,” we take quasiquark distribution introduced by Ji [Phys. Rev. Lett. 110, 262002 (2013)PRLTAO0031-900710.1103/PhysRevLett.110.262002] as a case study to show that it could be factorized into the PDFs to all orders in perturbation theory if it can be multiplicatively renormalized. We calculate the factorized coefficients at the next-to-leading order in αs.
Subfields: Nuclear and High Energy Physics
View Paper: https://www.semanticscholar.org/paper/729b1d8fc331d935b61b31db3487e011fd7ece0c
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Citations in the corpus
- Parton distributions and lattice-QCD calculations: Toward 3D structure (2020, methodology): “…novel methods have been proposed for the extraction of lightcone distributions (Aglietti et al., 1998; Bali et al., 2018; Braun and Müller, 2008; Chambers et al., 2017; Detmold et al., 2018; Detmold and Lin, 2006; Liang et al., 2019; Liu and Dong, 1994; Ma and Qiu, 2018a,b; Sufian et al., 2019).”
- A Guide to Light-Cone PDFs from Lattice QCD: An Overview of Approaches, Techniques, and Results (2018, background): “For this approach to be successful, it is crucial that the quasi-PDFs can be factorized to normal PDFs to all orders in QCD perturbation theory, and this requires that quasi-PDFs can be multiplicatively renormalized [93].”