https://doi.org/10.1051/epjconf/202531606015
Magnetic Field Effects on Hadron Yields and Fluctuations
Physics Department, University of Houston, Box 351550, Houston, TX 77204, USA
* e-mail: vvovchenko@uh.edu
Published online: 27 January 2025
We explore the impact of an external magnetic field on hadron yields and fluctuations in a thermalized system within the hadron resonance gas (HRG) model using an expanded Thermal-FIST package. The magnetic field sizably enhances the final proton-to-pion (p/π) ratio due to △(1232)++ decay feeddown indicating that this ratio may serve as a potential magnetometer for freeze- out conditions. At the same time, magnetic field does not generate additional dynamical fluctuations of hadron numbers. This suggests that fluctuations in heavy-ion collisions provide limited additional information about the magnetic field beyond what is already inferred from mean multiplicities.
© The Authors, published by EDP Sciences, 2025
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