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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
JLAB Number: JLAB-THY-19-2900 OSTI Number: 1570342
LANL Number: arXiv:1903.04458 Other Number: DOE/OR/23177-4650
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)
DOI Link
Dataset(s) (none)
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