Projects per year
Abstract
We revise the relation between Parton Distribution Functions (PDFs) and matrix elements computable from lattice QCD, focusing on the quasi-Parton Distribution Functions (qPDFs) approach. We exploit the relation between PDFs and qPDFs in the case of the unpolarized isovector parton distribution to obtain a factorization formula relating the real and imaginary part of qPDFs matrix elements to specific nonsinglet distributions, and we propose a general framework to extract PDFs from the available lattice data, treating them on the same footing as experimental data. We implement the proposed approach within the NNPDF framework, and we study the potentiality of such lattice data in constraining PDFs, assuming some plausible scenarios to assess the unknown systematic uncertainties. We finally extract the two nonsinglet distributions involved in our analysis from a selection of the available lattice data.
Original language | English |
---|---|
Number of pages | 26 |
Journal | Journal of High Energy Physics |
DOIs | |
Publication status | Published - 10 Oct 2019 |
Keywords / Materials (for Non-textual outputs)
- hep-ph
- hep-lat
Fingerprint
Dive into the research topics of 'Parton distributions from lattice data: the nonsinglet case'. Together they form a unique fingerprint.Projects
- 2 Finished
-
Particle Theory at the Higgs Centre
Ball, R. (Principal Investigator), Boyle, P. (Co-investigator), Del Debbio, L. (Co-investigator), Gardi, E. (Co-investigator), Horsley, R. (Co-investigator), Kennedy, A. (Co-investigator), O'Connell, D. (Co-investigator), Smillie, J. (Co-investigator) & Zwicky, R. (Co-investigator)
1/10/17 → 30/09/21
Project: Research
-
High-performance computing at the high-energy frontier: results for the LHC
Del Debbio, L. (Principal Investigator)
1/01/15 → 31/12/19
Project: Research