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arXiv · 1007.3566

Exposing the dressed quark's mass

H. L. L. Roberts·L. Chang·I. C. Cloet·C. D. Roberts
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Abstract

This snapshot of recent progress in hadron physics made in connection with QCD's Dyson-Schwinger equations includes: a perspective on confinement and dynamical chiral symmetry breaking (DCSB); a pre'cis on the physics of in-hadron condensates; results on the hadron spectrum, including dressed-quark-core masses for the nucleon and Delta, their first radial excitations, and the parity-partners of these states; an illustration of the impact of DCSB on the electromagnetic pion form factor, thereby exemplifying how data can be used to chart the momentum-dependence of the dressed-quark mass function; and a prediction that F_1^{p,d}/F_1^{p,u} passes through zero at Q^2\approx 5m_N^2 owing to the presence of nonpointlike scalar and axial-vector diquark correlations in the nucleon.

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H. L. L. Roberts, L. Chang, I. C. Cloet, C. D. Roberts. 2010-07-21. Exposing the dressed quark's mass. https://doi.org/10.1142/9789814329569_0021

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