6533b852fe1ef96bd12aaaa8

RESEARCH PRODUCT

Photoproduction ofZ(4430)through mesonic Regge trajectories exchange

subject

description

The recently discovered $Z(4430)$ mesonic resonance is believed to be a strong tetraquark candidate. The photoproduction in the channel $\ensuremath{\gamma}p\ensuremath{\rightarrow}{Z}^{+}(4430)n\ensuremath{\rightarrow}{\ensuremath{\psi}}^{'}{\ensuremath{\pi}}^{+}n$ has been proposed as the most effective way to confirm the $Z(4430)$ presence and to measure its quantum numbers. In this work we present a model for high-energy and forward-angle $Z(4430)$ photoproduction in a effective Lagrangian approach. This model is based on the use of Regge trajectories exchange, thus a Regge propagator replaces the usual Feynman propagator. The differential and total cross sections and the asymmetries have been calculated for the ${J}^{P}$ quantum numbers ${1}^{\ensuremath{-}}$, ${1}^{+}$, ${0}^{\ensuremath{-}}$, and ${2}^{\ensuremath{-}}$ in the hypotheses where $Z(4430)$ has isospin $I=1$.