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arXiv · hep-ph/9211250

On the Nucleon Distribution Amplitude: The Heterotic Solution

N. G. Stefanis·M. Bergmann
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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 \hbox{$\vert G_{M}^{n}\vert/G_{M}^{p}\le 0.1$}, 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 $γp Δ^{+}$ and the decay widths of the charmonium levels $^3S_{1}$, $^3P_{1}$, and $^3P_{2}$ into $p\bar p$. The agreement with the available data is remarkable in all cases.

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N. G. Stefanis, M. Bergmann. 1992-11-16. On the Nucleon Distribution Amplitude: The Heterotic Solution. https://doi.org/10.1103/physrevd.47.r3685

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