Molecular structure of the Bs0*(5725) and Bs1(5778) bottom-strange mesons

TL;DR

This paper explores the possibility that certain bottom-strange mesons are hadronic molecules, analyzing their decay properties and providing predictions for their decay widths and couplings.

Contribution

It introduces a phenomenological approach to interpret Bs0*(5725) and Bs1(5778) as hadronic molecules and predicts their decay characteristics.

Findings

Predicted decay widths for Bs0* and Bs1 mesons.

Calculated effective couplings for various decay channels.

Supported the molecular interpretation hypothesis.

Abstract

We discuss a possible interpretation of the scalar Bs0*(5725) and axial Bs1(5778) bottom-strange mesons as hadronic molecules - bound states of B K and B* K mesons, respectively. Using a phenomenological Lagrangian approach we analyze the strong Bs0* to Bs pi0, Bs1 to Bs* pi0 and the radiative Bs0* to Bs* gamma, Bs1 to Bs gamma, Bs1 to Bs* gamma, Bs1 to Bs0* gamma decays. We give predictions for the decay properties: effective couplings and decay widths.