On the Nucleon Distribution Amplitude: the Heterotic Solution

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 |GM |/G p M ≤ 0.1, while fulfilling most of the sum-rule requirements up to the third order. Using this nucleon distribution amplitude we calculate the electromagnetic and weak nucleon form factors, the transition form factor γp∆+ and the decay widths of the charmonium levels S1, P1, and P2 into pp̄. The agreement with the available data is remarkable in all cases.