An Extended Chiral Mean-Field Model with Medium-Modified Thermal Mesons for Hot and Dense Hadronic Matter
Abstract
In this conference proceeding we review an extension of the Chiral Mean Field (CMF) model that consistently incorporates interacting thermal mesons with self-consistent in-medium masses. In this approach, the in-medium masses of pseudoscalar and vector mesons are evaluated through the explicit chiral symmetry-breaking and vector-interaction terms in the Lagrangian respectively, before applying the mean-field approximation. These medium-modified meson properties introduce additional feedback into the CMF equations of motion, leading to a revised equation of state. The impact of this refinement is analyzed by comparing the hadronic model predictions with recent lattice QCD data and other hadronic descriptions, such as the hadron resonance gas model. The modified CMF framework, featuring an improved meson treatment (mCMF),demonstrates enhanced consistency with lattice-QCD results for thermodynamic observables across a broad range of temperatures and baryon chemical potentials.
Related
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- Non-Hermitian Skin Effect from Radiative Coupling in a Reciprocal Chiral Medium
- Medium effects on neutron star modified and direct Urca cooling rates
BibTeX
@misc{kahangirwe2026extended,
title = {{An Extended Chiral Mean-Field Model with Medium-Modified Thermal Mesons for Hot and Dense Hadronic Matter}},
author = {Micheal Kahangirwe and Rajesh Kumar and Joaquin Grefa and Konstantin Maslov and Yuhan Wang and Arvind Kumar and Claudia Ratti and Veronica Dexheimer},
howpublished = {arXiv},
year = {2026},
month = sep,
doi = {10.48550/arxiv.2609.17473},
eprint = {2609.17473},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2609.17473},
note = {CC BY-NC-ND 4.0},
}
RIS
TY - UNPB
TI - An Extended Chiral Mean-Field Model with Medium-Modified Thermal Mesons for Hot and Dense Hadronic Matter
AU - Micheal Kahangirwe
AU - Rajesh Kumar
AU - Joaquin Grefa
AU - Konstantin Maslov
AU - Yuhan Wang
AU - Arvind Kumar
AU - Claudia Ratti
AU - Veronica Dexheimer
PY - 2026
DA - 2026/09/15
PB - arXiv
DO - 10.48550/arxiv.2609.17473
UR - https://arxiv.org/abs/2609.17473
AB - In this conference proceeding we review an extension of the Chiral Mean Field (CMF) model that consistently incorporates interacting thermal mesons with self-consistent in-medium masses. In this approach, the in-medium masses of pseudoscalar and vector mesons are evaluated through the explicit chiral symmetry-breaking and vector-interaction terms in the Lagrangian respectively, before applying the mean-field approximation. These medium-modified meson properties introduce additional feedback into the CMF equations of motion, leading to a revised equation of state. The impact of this refinement is analyzed by comparing the hadronic model predictions with recent lattice QCD data and other hadronic descriptions, such as the hadron resonance gas model. The modified CMF framework, featuring an improved meson treatment (mCMF),demonstrates enhanced consistency with lattice-QCD results for thermodynamic observables across a broad range of temperatures and baryon chemical potentials.
ER -