A study of the vector meson $\mathbf{\psi(4040)}$
High Energy Physics - Phenomenology
2019-02-20 v1
Abstract
We investigate the well-known vector state in the framework of a quantum field theoretical model. In particular, we study its spectral function and search for the pole(s) in the complex plane. Quite interestingly, the spectral function has a non-standard shape and two poles are present. The role of the meson-meson quantum loops (in particular ones) is crucial and could also explain the not yet confirmed state .
Cite
@article{arxiv.1810.12702,
title = {A study of the vector meson $\mathbf{\psi(4040)}$},
author = {Milena Piotrowska and Francesco Giacosa},
journal= {arXiv preprint arXiv:1810.12702},
year = {2019}
}
Comments
3 pages, 1 figure. Prepared for the proceedings of MESON 2018, 15th International Workshop on Meson Physics, KRAK\'OW, POLAND, 7th - 12th June 2018