Hadron resonance gas is not a good model for hadronic matter in a strong magnetic field
Pasi Huovinen, Michał Marczenko, Michał Szymański, Bithika Karmakar, Pok Man Lo, Chihiro Sasaki, Krzysztof Redlich
Published: 2025/10/1
Abstract
We study the effect of magnetic field on particle yields and charge fluctuations in hadron resonance gas. We argue that the big changes in the proton yield and baryon number susceptibility are due to ill-defined description of higher-spin states, and that because of detailed balance, neutral resonances must be affected by the field too.