Meson spectra in a screened relativized quark model
Abstract
In this work, we employed the modified Godfrey--Isgur model to systematically investigate the mass spectra of several light, heavy-light, and heavy-heavy meson systems. In this model, a screened potential is employed to phenomenologically account for modifications to the long-range confining interaction associated with unquenched effects. We performed a global refit of the relevant model parameters to a combined set of 90 adopted meson masses spanning all three sectors, ensuring a consistent parameter determination across the different meson systems. Using the resulting parameter set, we calculated the low-lying and highly excited spectra and the corresponding mixed states in different meson families, and compared our results with existing experimental data and other theoretical results. The assignment of several newly observed structures (such as Bc* and Ds1(2933)) have also been discussed based on their predicted masses. Overall, the model describes several main spectroscopic features across different flavors and provides mass predictions for highly excited states that have not yet been experimentally established.
Related
- A Full Reproduction of the Godfrey--Isgur Relativized Quark Model
- A Density Functional for Quark Matter with Screened Confinement Interactions
- Diquark Correlators and Phase Structure in the Quark-Meson-Diquark Model beyond Mean Field
- Valence-quark-core and meson-cloud effects on electromagnetic form factors of Δ baryons
- Meson mass spectrum in isospin QCD medium from the Nf=2+1 quark-meson model
BibTeX
@misc{huang2026meson,
title = {{Meson spectra in a screened relativized quark model}},
author = {Zhe-Qi Huang and Lei Huang and Xiao-Lei Zhang and Xin-Lei Ge and Hao Chen and Cheng-Qun Pang},
howpublished = {arXiv},
year = {2026},
month = nov,
doi = {10.48550/arxiv.2611.05440},
eprint = {2611.05440},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2611.05440},
}
RIS
TY - UNPB
TI - Meson spectra in a screened relativized quark model
AU - Zhe-Qi Huang
AU - Lei Huang
AU - Xiao-Lei Zhang
AU - Xin-Lei Ge
AU - Hao Chen
AU - Cheng-Qun Pang
PY - 2026
DA - 2026/11/03
PB - arXiv
DO - 10.48550/arxiv.2611.05440
UR - https://arxiv.org/abs/2611.05440
AB - In this work, we employed the modified Godfrey--Isgur model to systematically investigate the mass spectra of several light, heavy-light, and heavy-heavy meson systems. In this model, a screened potential is employed to phenomenologically account for modifications to the long-range confining interaction associated with unquenched effects. We performed a global refit of the relevant model parameters to a combined set of 90 adopted meson masses spanning all three sectors, ensuring a consistent parameter determination across the different meson systems. Using the resulting parameter set, we calculated the low-lying and highly excited spectra and the corresponding mixed states in different meson families, and compared our results with existing experimental data and other theoretical results. The assignment of several newly observed structures (such as B_c^* and D_s1(2933)) have also been discussed based on their predicted masses. Overall, the model describes several main spectroscopic features across different flavors and provides mass predictions for highly excited states that have not yet been experimentally established.
ER -