| THE PHYSICS OF ELEMENTARY PARTICLES AND FIELDS |
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Revisiting Chiral Extrapolation by Studying a Lattice Quark Propagator |
| ZHANG Yan-Bin1,2, SUN Wei-Min1,2, LÜ Xiao-Fu3, ZONG Hong-Shi1,2 |
| 1Department of Physics, Nanjing University, Nanjing 2100932Joint Center for Particle, Nuclear Physics and Cosmology, Nanjing 2100933Department of Physics, Sichuan University, Chengdu 610064 |
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| Cite this article: |
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ZHANG Yan-Bin, SUN Wei-Min, LÜ et al 2009 Chin. Phys. Lett. 26 081101 |
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Abstract The quark propagator in the Landau gauge is studied on the lattice, including the quenched and the unquenched results. No obvious unquenched effects are found by comparing the quenched quark propagator with the dynamical one. For the quenched and unquenched configurations, the results with different quark masses have been computed. For the quark mass function, a nonlinear chiral extrapolating behavior is found in the infrared region for both the quenched and dynamical results.
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| Keywords:
11.15.Ha
12.38.Gc
12.38.Aw
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Received: 05 May 2009
Published: 30 July 2009
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| PACS: |
11.15.Ha
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(Lattice gauge theory)
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12.38.Gc
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(Lattice QCD calculations)
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12.38.Aw
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(General properties of QCD (dynamics, confinement, etc.))
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