Conference paper
Schwinger-Dyson approach and generalized impulse approximation for the π0 γ⋆ γ transition:
Dubravko Klabučar
; Department of Physics, Faculty of Science, Zagreb University, P.O.B. 162, 10001 Zagreb, Croatia
Dalibor Kekez
; Ruđer Bošković Institute, P.O.B. 1016, 10001 Zagreb, Croatia
Abstract
We review the pion-photon transition form factor calculated in the Schwinger-Dyson approach and an impulse approximation. We present results for it far above the scales presently accessible for measurement, up to 36 GeV2, and demonstrate agreement with the analytically inferred asymptotic behavior, for which we also provide a new derivation. We discuss how measurements at Jefferson Lab can provide information on how quarks are dynamically dressed.
Keywords
Schwinger-Dyson equations; Curtis-Pennington and Ball-Chiu vertices
Hrčak ID:
305355
URI
Publication date:
1.6.1999.
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