Nucleon distribution amplitude: The heterotic solution

Abstract
We present a new nucleon distribution amplitude which amalgamates features of the Chernyak-Ogloblin-Zhitnitsky model with those of the Gari-Stefanis model. This "heterotic" solution provides the possibility to have asymptotically a small ratio |GMn|GMp0.1, while satisfying most of the sum-rule requirements up to third order. Using this nucleon distribution amplitude we calculate the electromagnetic and weak nucleon form factors, the transition form factor γpΔ+, and the decay widths of the charmonium levels S13, P13, and P23 into pp¯. The agreement with the available data is remarkable in all cases.
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