STI Publications - View Publication Form #14845
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Publication Information
| Title | Quasi-parton distribution functions, momentum distributions, and pseudo-parton distribution functions | ||||
| Abstract | We show that quasi-PDFs may be treated as hybrids of PDFs and primordial rest-frame momentum distributions of partons. This results in a complicated convolution nature of quasi-PDFs that necessitates using large p_3~ 3 GeV momenta to get reasonably close to the PDF limit. As an alternative approach, we propose to use pseudo-PDFs P(x, z_3^2) that generalize the light-front PDFs onto spacelike intervals and are related to Ioffe-time distributions M (v, z_3^2), the functions of the Ioffe time v = p_3 z_3 and the distance parameter z_3^2 with respect to which it displays perturbative evolution for small z_3. In this form, one may divide out the z_3^2 dependence coming from the primordial rest-frame distribution and from the problematic factor due to lattice renormalization of the gauge link. The v-dependence remains intact and determines the shape of PDFs. | ||||
| Author(s) | Anatoly Radyushkin | ||||
| Publication Date | August 2017 | ||||
| Document Type | Journal Article | ||||
| Primary Institution | Thomas Jefferson National Accelerator Facility, Newport News | ||||
| 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 |
Journal Article
| Journal Name | Physical Review Letters |
| Refereed | Yes |
| Volume | 96 |
| Issue | 03 |
| Page(s) | 034025 |
Attachments/Datasets/DOI Link
| Document(s) |
pseudo0429.pdf
(STI Document)
1705.01488.pdf
(Accepted Manuscript)
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| DOI Link | |
| Dataset(s) | (none) |
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