An isotopic effect in phi photoproduction at a few GeV

Details An isotopic effect in phi photoproduction at a few GeV An isotopic effect in phi photoproduction at a few GeV

1998-12-27

arxiv.org/abs/nucl-th/9812074v1

Phys.Rev. C59 (1999) 2993

Physics

Nuclear Physics

Nuclear Theory

11 pages, 6 figures

Scientific paper

10.1103/PhysRevC.59.R2993

A distinct isotopic effect in phi photoproduction at 2-5 GeV region is identified by examining the production amplitudes due to Pomeron-exchange and meson-exchange mechanisms. This effect is mainly caused by the pi-eta interference constrained by SU(3) symmetry and the isotopic structure of the gamma NN coupling in the direct phi-radiation amplitude. It can be tested experimentally by measuring differences in the polarization observables between the gamma-p and gamma-n reactions.

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