Work

Meson-meson molecular binding potentials in the diabatic dynamical diquark model

Year: 2025

Type: article

Abstract: Using the diabatic formalism, a rigorous generalization of the Born-Oppenheimer approximation, we study the effects of introducing simple meson-meson molecular potentials to an established diquark model for tetraquark states, and calculate mixed bound states composed of both diquark-antidiquark and meson-meson molecular components. We examine the behavior of properties of the states as one varies the parameters of the dimeson potential, and find that significant regions of parameter space occur in which one may produce mass eigenstates exactly matching the specific examples of χ c 1 ( 3872 ) and χ c 0 ( 3915 ) . We also find regions in which a pure dimeson molecular state emerges, and study the same state properties in such cases.

Source: Physical review. D/Physical review. D.

DOI: 10.1103/physrevd.111.094005

Authors: Richard F. Lebed, Steven R. Martinez

Institution: Arizona State University

Language: English

Topic: Quantum Chromodynamics and Particle Interactions

Subfield: Nuclear and High Energy Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: hybrid

Funder: National Science Foundation

Awards: Precision Global Modeling of Exotic Hadrons, Unifying the Diquark and Molecular Models for Exotic Hadrons