Propagators and Masses of Light Quarks |
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| Authors: | ZHOU Li-Juan ZHU Ji-Zhen MA Wei-Xing |
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| Affiliation: | 1. Department of Information and Computing Science, Guangxi University of Technology, Liuzhou 545006, China;2. Institute ofHigh Energy Physics, the Chinese Academy of Sciences, Beijing 100039, China;3. Institute of Theoretical Physics, the Chinese Academy ofSciences, Beijing 100080, China |
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| Abstract: | Based on Dyson-Schwinger equations in “rainbow”approximation, fullydressed confining quark propagator is obtained, and then the masses of light quarks (mu, md, andms) are derived from the fully dressed confining quarkpropagator. At the same time, the local and non-local quark vacuumcondensates as well as the quark-gluon mixed condensate are alsopredicted. Furthermore, the quark masses are also deducedfrom the Gell-Mann-Oakes-Renner relation and chiral perturbative theory. The results from differentmethods are consistent with each other. |
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| Keywords: | quark propagator quark condensate quark mass Dyson-Schwinger equations |
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