STI Publications - View Publication Form #15837
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Publication Information
| Title | Quark fragmentation as a probe of dynamical mass generation | ||||
| Abstract | We address the propagation and hadronization of a struck quark by studying the gauge invariance of the color-averaged cut quark propagator, and by relating this to the single inclusive quark fragmentation correlator by means of new sum rules. Using suitable Wilson lines, we provide a gauge-invariant definition for the mass of the color-averaged dressed quark and decompose this into the sum of a current and an interaction-dependent component. The latter, which we argue is an order parameter for dynamical chiral symmetry breaking, also appears in the sum rule for the twist-3 E_tilde fragmentation function, providing a direct experimental way to probe the dynamical generation of mass in Quantum Chromo Dynamics. | ||||
| Author(s) | Alberto Accardi, Andrea Signori | ||||
| Publication Date | October 2019 | ||||
| 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), AC02-06CH11357, DE-SC0008791 | ||||
| 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 | Physics Letters B |
| Refereed | Yes |
| Volume | 798 |
| Issue | |
| Page(s) | 134993 |
Attachments/Datasets/DOI Link
| Document(s) |
mass_letter2.pdf
(STI Document)
1-s2.0-S0370269319307154-main.pdf
(Accepted Manuscript)
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| DOI Link | |
| Dataset(s) | (none) |
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