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Constraints on iota. --> gamma gamma. provided by the topological susceptibility

Journal Article · · Phys. Rev. Lett.; (United States)
The chiral Ward identities for the pseudoscalar nonet including the glueball candidate iota(1450), together with the requirement that the topological susceptibility be positive, imply that GAMMA(iota..--> gamma gamma..) is typically small (<1 keV), in agreement with recent experimental values. The topological susceptibility is, as expected, much smaller than pure-gauge-field estimates.
Research Organization:
Department of Physics and Astronomy, University of Oklahoma, Norman, Oklahoma 73019
OSTI ID:
7104330
Journal Information:
Phys. Rev. Lett.; (United States), Journal Name: Phys. Rev. Lett.; (United States) Vol. 57:13; ISSN PRLTA
Country of Publication:
United States
Language:
English