Dynamically generated resonances from vector meson-vector meson interaction based on a hidden-gauge unitary approach

TL;DR

This paper uses a hidden-gauge unitary approach to study vector meson interactions, successfully generating 11 resonances, some matching known particles and others predicted for future experimental verification.

Contribution

It introduces a method to dynamically generate vector meson resonances using hidden-gauge Lagrangians and unitarity, identifying known states and predicting new ones.

Findings

11 resonances generated, some match known mesons

Five states identified with experimental counterparts

Six states are novel predictions for future tests

Abstract

We present a recent study of vector meson-vector meson interaction using a unitary approach based on the hidden-gauge Lagrangians. We find that 11 states get dynamically generated, corresponding to poles of the scattering matrices on the second Riemann sheet. Five of them are associated to the $f_0(1370)$, $f_0(1710)$, $f_2(1270)$, $f_2'(1525)$, and $K^*_2(1430)$, by comparing the mass, width, and decay pattern of these states with those of their experimental counterparts. Six others with the quantum numbers of $h_1$, $a_0$, $b_1$, $a_2$, $K^*_0$, and $K_1$ can not be clearly identified with any experimentally observed resonances and should be taken as predictions to be tested by future experiments.