Spin effects and baryon resonance dynamics in φ-meson photoproduction at few GeV
Spin effects and baryon resonance dynamics in φ-meson photoproduction at few GeV
The diffractive $\ensuremath{\varphi}$-meson photoproduction amplitude is dominated by the Pomeron-exchange process and contains the terms that govern the spin-spin and spin-orbital interactions. We show that these terms are responsible for the spin-flip transitions at forward photoproduction angles and appear in the angular distributions of $\stackrel{\ensuremath{\rightarrow}}{\ensuremath{\varphi}}{K}^{+}{K}^{\ensuremath{-}}$ decay in reactions with unpolarized …