X (3872) as a Universal and Composite State
High Energy Physics - Phenomenology
2021-09-29 v1
Abstract
X (3872) because of its mass that is just below D^0 D-^0* threshold and its quantum number j^pc=1^++ can be considered as a weakly bound molecule. It can be regarded as a non-relativistic system depicting universality and compositeness. Physical observables are called universal if they are insensitive to the range and other details of short-range interaction. Weinberg introduced compositeness criterion to classify a two-body composite system as the sum, with different weights, of a compact core and two distinct parts.
Cite
@article{arxiv.2109.13793,
title = {X (3872) as a Universal and Composite State},
author = {B. Kabirimanesh and H. Mehraban},
journal= {arXiv preprint arXiv:2109.13793},
year = {2021}
}
Comments
9 pages, 1 table