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On the Nucleon Distribution Amplitude: The Heterotic Solution

Authors :
Stefanis, N. G.
Bergmann, M.
Publication Year :
1992
Publisher :
arXiv, 1992.

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 $\gamma p \Delta^{+}$ 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.<br />Comment: 15 pages, RUB-TPII-21/92 Preprint

Details

Database :
OpenAIRE
Accession number :
edsair.doi.dedup.....ec443208569ad5645684a8e16580b02e
Full Text :
https://doi.org/10.48550/arxiv.hep-ph/9211250