Nucleon distribution amplitude: The heterotic solution
- 1 May 1993
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review D
- Vol. 47 (9) , R3685-R3689
- https://doi.org/10.1103/physrevd.47.r3685
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 , 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 , and the decay widths of the charmonium levels , , and into . The agreement with the available data is remarkable in all cases.
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