Topological susceptibility in the SU(3) gauge theory

Journal Article · Thu Jan 12 00:00:00 EST 2006 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.2163756· OSTI ID:20787629

Del Debbio, Luigi ^[1]

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1. CERN, Department of Physics, TH Division, CH-1211 Geneva 23 (Switzerland)

We compute the topological susceptibility for the SU(3) Yang-Mills theory by employing the expression of the topological charge density operator suggested by Neuberger's fermions. In the continuum limit we find r{sub 0}{sup 4}{chi} = 0.059(3), which corresponds to {chi} = (191 {+-} 5 MeV)4 if FK is used to set the scale. Our result supports the Witten-Veneziano explanation for the large mass of the {eta}'. Comments on the large-volume distribution of the topological charge are presented.

• OSTI ID: 20787629
• Journal Information: AIP Conference Proceedings, Vol. 806, Issue 1; Conference: International workshop on quantum chromodynamics: Theory and experiment, Conversano, Bari (Italy), 16-20 Jun 2005; Other Information: DOI: 10.1063/1.2163756; (c) 2006 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
CHARGE DENSITY
DISTRIBUTION
ETA PRIME-958 MESONS
FERMIONS
GAUGE INVARIANCE
MEV RANGE
QUANTUM CHROMODYNAMICS
REST MASS
SU-3 GROUPS
TOPOLOGY
YANG-MILLS THEORY