Regge phenomenology in $\ddot{I}{€}^0$ and $\hat{I}\cdot$ photoproduction

Abstract

The ${\hat{I}}^{3}N\to \ddot{I}{€}^{0}N$ and ${\hat{I}}^{3}N\to \hat{I}\cdot N$ reactions at photon beam energies above 4 GeV are investigated within Regge models. The models include $t$-channel exchanges of vector ($\ddot{I}$ and $\ddot{I}‰$) and axial vector ($b_1$ and $h_1$) mesons. Moreover, Regge cuts of $\ddot{I}\mathbb{P}$, $\ddot{I}f_2$, $\ddot{I}‰\mathbb{P}$, and $\ddot{I}‰f_2$ are investigated. A good description of differential cross sections and polarization observables at photon beam energies from 4 to 15 GeV can be achieved.

11 pages, 10 figures