Relevant gluonic energy scale of spontaneous chiral symmetry breaking from lattice QCD

Journal Article · Fri Jan 01 00:00:00 EST 2010 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.81.014506· OSTI ID:21408987

Yamamoto, Arata; Suganuma, Hideo ^[1]

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1. 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

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
CHIRAL SYMMETRY
CHIRALITY
GLUONS
LATTICE FIELD THEORY
QUANTUM CHROMODYNAMICS
QUARKS
SYMMETRY BREAKING
BOSONS
CONSTRUCTIVE FIELD THEORY
FERMIONS
FIELD THEORIES
PARTICLE PROPERTIES
QUANTUM FIELD THEORY
SYMMETRY