Relevant gluonic energy scale of spontaneous chiral symmetry breaking from lattice QCD
Journal Article
·
· Physical Review. D, Particles Fields
- Department of Physics, Faculty of Science, Kyoto University, Kitashirakawa, Sakyo, Kyoto 606-8502 (Japan)
We analyze which momentum component of the gluon field induces spontaneous chiral symmetry breaking in lattice QCD. After removing the high-momentum or low-momentum component of the gluon field, we calculate the chiral condensate and observe the roles of these momentum components. The chiral condensate is found to be drastically reduced by removing the zero-momentum gluon. The reduction is about 40% of the total in our calculation condition. The nonzero-momentum infrared gluon also has a sizable contribution to the chiral condensate. From the Banks-Casher relation, this result reflects the nontrivial relation between the infrared gluon and the zero-mode quark.
- OSTI ID:
- 21408987
- Journal Information:
- Physical Review. D, Particles Fields, Vol. 81, Issue 1; Other Information: DOI: 10.1103/PhysRevD.81.014506; (c) 2010 The American Physical Society; ISSN 0556-2821
- Country of Publication:
- United States
- Language:
- English
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