Influence of light quark loops on the Wigner phase with Dyson–Schwinger equations approach
| Autor: | Jing-Hui Huang, Xiang-Yun Hu, Qi Wang, Xue-Ying Duan, Guang-Jun Wang, Huan Chen |
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| Rok vydání: | 2022 |
| Předmět: |
High Energy Physics - Theory
High Energy Physics - Phenomenology Nuclear and High Energy Physics High Energy Physics - Phenomenology (hep-ph) High Energy Physics - Theory (hep-th) High Energy Physics::Lattice Nuclear Theory High Energy Physics::Phenomenology FOS: Physical sciences High Energy Physics::Experiment |
| Zdroj: | The European Physical Journal A. 58 |
| ISSN: | 1434-601X |
| DOI: | 10.1140/epja/s10050-022-00774-y |
| Popis: | We study the influence of light quark loops on the Wigner phase by solving coupled Dyson-Schwinger equations for quark propagator and gluon propagator. We take the gluon propagator in the Nambu phase from $N_f$ = 2 unquenched lattice QCD and choose various phenomenological models for the quark-gluon vertex. The gluon propagator in Winger phase is assumed to be different from that in the Nambu phase only due to the vacuum polarization of the quark loop. We obtain the Wigner solution of the coupled equations, compared with that from solving only the equation of the quark propagator. We discussed the corrections by the light quark loops and the dependence on various models of the quark-gluon vertex. 12 pages, 8 figures |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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