STI Publications - View Publication Form #16119
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Publication Information
| Title | On the calculation of parton distributions from Lattice QCD | ||||
| Abstract | A new method for calculating parton distribution functions from lattice QCD is implemented and studied. Lattice QCD calculable matrix elements with space-like separated ¿elds have an analogous operator product expansion to experimental scattering cross sections and thus these matrix elements are known as “Good Lattice Cross Sections”. Using the colinear factorization approach, a Good Lattice Cross Section can be factorized to the short distance matching kernels that are computed in perturbation theory and the non-perturbative parton distribution functions. As a result, using the perturbative matching kernels and the non-perturbatively computed matrix elements, one can obtain the parton distribution functions. The nucleon and pion matrix elements are determined on a set of 2+1 ¿avors of clover improved quarks with heavier than physical pion mass. The determination of the parton distributions from Good Lattice Cross Sections constitutes an ill-posed inverse problem. Methods for accurate | ||||
| Author(s) | Joseph Karpie | ||||
| Publication Date | August 2019 | ||||
| Document Type | Thesis | ||||
| Primary Institution | The College of William and Mary, Williamsburg, VA | ||||
| Affiliation | Theory & Comp Physics / THEORY CENTER / THEORY CENTER | ||||
| Funding Source | Nuclear Physics (NP) | ||||
| Proprietary? | No | ||||
| This publication conveys | Technical Science Results | ||||
| Document Numbers |
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| Associated with an experiment | No | ||||
| Associated with EIC | No | ||||
| Supported by Jefferson Lab LDRD Funding | No |
Thesis
| Thesis Type | PhD |
| Advisor | Institution |
| 1. Konstantinos Orginos | W&M |
Attachments/Datasets/DOI Link
| Document(s) |
JK_thesis.pdf
(STI Document)
|
| Dataset(s) | (none) |
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