More uses for thermal models.
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| Title: | More uses for thermal models. |
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| Authors: | Sharma, Natasha1 (AUTHOR) natasha.sharma@cern.ch, Kumar, Lokesh2 (AUTHOR), Gupta, Sourendu3 (AUTHOR) |
| Source: | European Physical Journal C -- Particles & Fields. May2026, Vol. 86 Issue 5, p1-9. 9p. |
| Subjects: | Chemical potential, Scientific models, Particle emissions, Antiparticles |
| Abstract: | We explore combinations of particle and anti-particle yields which can be used to test thermal models in a parameter free way. We also explore combinations which can be used to extract μ B / T , μ S / T and μ Q / T . We use experimentally measured particle-antiparticle specific ratios for proton p, Lambda Λ , and cascade Ξ , for s NN = 7.7–39 GeV from RHIC BES phase-1 to extract the μ B , S , Q / T . These compared well with published STAR freeze-out parameters. These combinations are verified to predict a similar combination of Ω yields. We also extend this idea to predict (anti-)nuclei yields at energies where they are not measured. We also update parametrizations for the s NN dependence of freeze-out parameters T and μ B , and present for the first time a similar parametrization of μ S . [ABSTRACT FROM AUTHOR] |
| Copyright of European Physical Journal C -- Particles & Fields is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
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| Abstract: | We explore combinations of particle and anti-particle yields which can be used to test thermal models in a parameter free way. We also explore combinations which can be used to extract μ B / T , μ S / T and μ Q / T . We use experimentally measured particle-antiparticle specific ratios for proton p, Lambda Λ , and cascade Ξ , for s NN = 7.7–39 GeV from RHIC BES phase-1 to extract the μ B , S , Q / T . These compared well with published STAR freeze-out parameters. These combinations are verified to predict a similar combination of Ω yields. We also extend this idea to predict (anti-)nuclei yields at energies where they are not measured. We also update parametrizations for the s NN dependence of freeze-out parameters T and μ B , and present for the first time a similar parametrization of μ S . [ABSTRACT FROM AUTHOR] |
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| ISSN: | 14346044 |
| DOI: | 10.1140/epjc/s10052-026-15759-0 |
