An isotopic effect in phi photoproduction at a few GeV

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.

11 pages, 6 figures

References in corpus (11)

• Total cross sections
• Meson-exchange Model for $\pi N$ scattering and $\gamma N->\pi N$ reaction
• Consistent Analysis of the Spin Content of the Nucleon
• Color Confinement, Quark Pair Creation and Dynamical Chiral-Symmetry Breaking in the Dual Ginzburg-Landau Theory
• Gauge-invariant theory of pion photoproduction with dressed hadrons
• Abundant phi-Meson Production in pbar-p Annihilation at Rest and Strangeness in the Nucleon
• Photoproduction of vector mesons off nucleons near threshold
• Strange vector currents and the OZI-rule
• Exclusive diffractive processes and the quark substructure of mesons
• Photoproduction of phi mesons from the proton: Polarization observables and strangeness in the nucleon
• Off-shell Behavior of the $\pi -\eta$ Mixing Amplitude

Cited by in corpus (9)

• $\varphi$-meson photoproduction on Hydrogen in the neutral decay mode
• Measurement of Spin-Density Matrix Elements for $\varphi$-Meson Photoproduction from Protons and Deuterons Near Threshold
• Measurement of the incoherent $\gamma d\to \varphi pn$ photoproduction near threshold
• First measurement of coherent $\varphi$-meson photoproduction on deuteron at low energies
• Non-diffractive mechanisms in the $\varphi$ meson photoproduction on nucleons
• Asymmetries in phi photoproduction and the OZI violation
• Extraction of Proton Trace Anomaly Energy from Near-Threshold $\varphi$ and $J/\psi$ photo-productions
• Proton and deuteron mass radii from near-threshold $\varphi$-meson photoproduction
• Theoretical study of incoherent phi photoproduction on a deuteron target