Publications
Publication Information
| Title | Quark fragmentation as a probe of dynamical mass generation |
| Authors | Alberto Accardi,Andrea Signori |
| JLAB number | JLAB-THY-19-2900 |
| LANL number | arXiv:1903.04458 |
| Other number | DOE/OR/23177-4650 |
| Document Type(s) | (Journal Article) |
| Supported by U.S. Naval Research: | No |
| Supported by Jefferson Lab LDRD Funding: | No |
| Funding Source: | Nuclear Physics (NP) |
| Other Funding: | AC02-06CH11357 DE-SC0008791 |
|
Journal Compiled for Physics Letters B Volume 798 Page(s) 134993 Refereed | |
| Publication 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. |
| Experiment Numbers: | other |
| Group: | THEORY CENTER |
| Document: | |
| DOI: | https://doi.org/10.1016/j.physletb.2019.134993 |
| Accepted Manuscript: | 1-s2.0-S0370269319307154-main.pdf |
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