Strong decays of molecular states Zc(+) and Zc'(+)

TL;DR

This paper predicts the decay widths of the newly observed Zc(+) and Zc'(+), considered as hadronic molecules, using a phenomenological Lagrangian approach to understand their strong decay behaviors.

Contribution

It provides the first decay width predictions for Zc(+) and Zc'(+), modeling them as molecular states of D mesons with a phenomenological framework.

Findings

Predicted decay widths for Zc(+) and Zc'(+).

Supported the molecular interpretation of these states.

Provided decay channels involving Psi(nS) and hc(mP).

Abstract

The two newly observed hidden-charm mesons Zc(+)[3900] and a possible partner state Zc'(+)[3950] with quantum numbers J(P) = 1(+) are considered as hadronic molecules composed of bar(D)D* and bar(D)* D*, respectively. We give predictions for the decay widths of the strong two-body transitions Zc(+) -> H + pi(+) and Zc' -> H + pi(+) with H = Psi(nS), hc(mP) in a phenomenological Lagrangian approach.