Strong decays of excited vector mesons

TL;DR

This paper analyzes decay patterns of excited vector mesons, comparing theoretical predictions with experimental data, and predicts properties of a yet-undiscovered strange-antistrange meson state.

Contribution

It provides a detailed study of decay modes of radially and orbitally excited vector mesons and offers predictions for the properties of the unobserved $ ext{phi}(1930)$ meson.

Findings

Decay widths into pseudoscalar pairs match experimental data

Predictions for the $ ext{phi}(1930)$'s mass and decay modes

Identification of decay patterns for excited vector mesons

Abstract

We study two nonets of excited vector mesons, predominantly corresponding to radially excited vector mesons with quantum numbers $n\hspace{0.08cm} ^{2S+1}L_{J}$ $=2^3S_1$ and to orbitally excited vector mesons with quantum numbers $n\hspace{0.08cm} ^{2S+1}L_{J}=1^3D_1$. We evaluate two types of decays of these mesons: into two pseudoscalar mesons and into a pseudoscalar and a ground-state vector meson. We compare the results with experimental data taken from PDG. We also make predictions for the strange-antistrange state in the $1^3D_1$ nonet denoted as $\phi(1930)$, which has not yet been discovered.