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Title: Relevant gluonic energy scale of spontaneous chiral symmetry breaking from lattice QCD
Authors: Yamamoto, Arata
Suganuma, Hideo  kyouindb  KAKEN_id
Author's alias: 菅沼, 秀夫
Issue Date: 19-Jan-2010
Publisher: American Physical Society
Journal title: Physical Review D
Volume: 81
Issue: 1
Thesis number: 014506
Abstract: 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.
Rights: © 2010 American Physical Society
DOI(Published Version): 10.1103/PhysRevD.81.014506
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