| Issue |
EPJ Web Conf.
Volume 333, 2025
XLVI Symposium on Nuclear Physics 2025
|
|
|---|---|---|
| Article Number | 02004 | |
| Number of page(s) | 6 | |
| Section | Fundamental Symmetries and Hadronic Physics | |
| DOI | https://doi.org/10.1051/epjconf/202533302004 | |
| Published online | 01 August 2025 | |
https://doi.org/10.1051/epjconf/202533302004
The use of many-body methods for the calculation of meson-like spectra
1 Instituto de Ciencias Nucleares, Ciudad Universitaria, Mexico-City, México.
2 Instituto de Educación Media Superior de la Ciudad de Mexico, Mexico-City, México.
3 Frankfurt Institute for Advanced Studies, J.W. Von Goethe University, Hessen, Germany.
4 Departamento de Física, Universidad Nacional de la Plata, La Plata, Argentina.
* e-mail: octavio.augusto@ciencias.unam.mx
** e-mail: tochtlicuauhtli.yepez@iems.edu.mx
*** e-mail: hess@nucleares.unam.mx
**** e-mail: osvaldo.civitarese@gmail.com
Published online: 1 August 2025
The study of properties for the low-energy regime of hadronic spectra is a challenging task; e.g. meson-like states require the introduction of effective degrees of freedom, a condition resulting from confinement. This work presents the results of adopting a non-perturbative scheme where quarks are treated as quasiparticles. These quasiparticles interact and by employing many-body techniques, we can describe a spectrum of meson-like states as a collective superposition of quasiquark-pairs followed by calculating their widths. The result of the calculations shows that this scheme is a suitable one to describe meson states up to energies of the order of a couple of GeV.
© The Authors, published by EDP Sciences, 2025
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