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| Autores principales: | , , |
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| Formato: | Preprint |
| Publicado: |
2026
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| Acceso en línea: | https://arxiv.org/abs/2602.15770 |
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| _version_ | 1866917518644346880 |
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| author | Sharma, Natasha Kumar, Lokesh Gupta, Sourendu |
| author_facet | Sharma, Natasha Kumar, Lokesh Gupta, Sourendu |
| contents | 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 $\sqrt{s_{NN}}=$ 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 $\sqrt{s_{NN}}$ dependence of freeze-out parameters $T$ and $μ_B$, and present for the first time a similar parametrization of $μ_S$. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2602_15770 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | More uses for Thermal Models Sharma, Natasha Kumar, Lokesh Gupta, Sourendu High Energy Physics - Phenomenology Nuclear Experiment Nuclear Theory 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 $\sqrt{s_{NN}}=$ 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 $\sqrt{s_{NN}}$ dependence of freeze-out parameters $T$ and $μ_B$, and present for the first time a similar parametrization of $μ_S$. |
| title | More uses for Thermal Models |
| topic | High Energy Physics - Phenomenology Nuclear Experiment Nuclear Theory |
| url | https://arxiv.org/abs/2602.15770 |