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arxiv: hep-ph/9905251 · v1 · pith:KO62BBOXnew · submitted 1999-05-05 · ✦ hep-ph

Schwinger-Dyson approach and generalized impulse approximation for the pi0 gamma^* gamma transition

classification ✦ hep-ph
keywords approachapproximationgammaimpulseschwinger-dysontransitionaboveaccessible
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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 GeV^2, 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.

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