Chemical freeze-out parameters via a nonperturbative QCD approach
By analyzing the calculated baryon number susceptibility ratios χB1/χB2 and χB3/χB1 in a two-flavor system via the Dyson-Schwinger equation approach of QCD, we determine the chemical freeze-out temperature and baryon chemical potential in cases of both thermodynamic limit and finite size. We calcula...
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| Hauptverfasser: | , , , , |
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
15 February 2022
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| In: |
Physical review
Year: 2022, Jahrgang: 105, Heft: 3, Pages: 1-9 |
| ISSN: | 2470-0029 |
| DOI: | 10.1103/PhysRevD.105.034012 |
| Online-Zugang: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1103/PhysRevD.105.034012 Verlag, lizenzpflichtig, Volltext: https://link.aps.org/doi/10.1103/PhysRevD.105.034012 
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| Verfasserangaben: | Yi Lu, Muyang Chen, Zhan Bai, Fei Gao, and Yu-xin Liu |
| Zusammenfassung: | By analyzing the calculated baryon number susceptibility ratios χB1/χB2 and χB3/χB1 in a two-flavor system via the Dyson-Schwinger equation approach of QCD, we determine the chemical freeze-out temperature and baryon chemical potential in cases of both thermodynamic limit and finite size. We calculate the center-of-mass energy dependence of the χB4/χB2(κσ2) at the freeze-out line and find an excellent agreement with experimental data when taking into account the finite size effect. Our calculations indicate that the κσ2 exhibits a nonmonotonic behavior in the lower collision energy region. We also predict that the collision energy dependence of χB6/χB2 is nonmonotonic. |
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| Beschreibung: | Gesehen am 28.03.2022 |
| Beschreibung: | Online Resource |
| ISSN: | 2470-0029 |
| DOI: | 10.1103/PhysRevD.105.034012 |