Please use this identifier to cite or link to this item:
https://hdl.handle.net/2440/94994
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Type: | Journal article |
Title: | Pion valence-quark parton distribution function |
Author: | Chang, L. Thomas, A. |
Citation: | Physics Letters B: Nuclear Physics and Particle Physics, 2015; 749:547-550 |
Publisher: | Elsevier |
Issue Date: | 2015 |
ISSN: | 0370-2693 1873-2445 |
Statement of Responsibility: | Lei Chang, Anthony W. Thomas |
Abstract: | Within the Dyson–Schwinger equation formulation of QCD, a rainbow ladder truncation is used to calculate the pion valence-quark distribution function (PDF). The gap equation is renormalized at a typical hadronic scale, of order 0.5 GeV, which is also set as the default initial scale for the pion PDF. We implement a corrected leading-order expression for the PDF which ensures that the valence-quarks carry all of the pion's light-front momentum at the initial scale. The scaling behavior of the pion PDF at a typical partonic scale of order 5.2 GeV is found to be (1−x)ν, with ν≃1.6, as x approaches one. |
Keywords: | Dynamical chiral symmetry breaking Dyson–Schwinger equations π-meson Parton distribution functions |
Rights: | © 2015 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/). |
DOI: | 10.1016/j.physletb.2015.08.036 |
Grant ID: | http://purl.org/au-research/grants/arc/FL0992247 |
Published version: | http://dx.doi.org/10.1016/j.physletb.2015.08.036 |
Appears in Collections: | Aurora harvest 7 Physics publications |
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hdl_94994.pdf | Published version | 353.5 kB | Adobe PDF | View/Open |
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