arXiv:nucl-th/9812074·v1·Nuclear Theory
An isotopic effect in phi photoproduction at a few GeV
A.I.Titov(JINR,Dubna)🇯🇵 · T.-S.H.Lee(ANL,Argonne)🇺🇸 · H.Toki(RCNP,Osaka-U)🇯🇵
Abstract
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.
Comments: 11 pages, 6 figures