Constraints on hadron resonance gas interactions via first-principles Lattice QCD susceptibilities
We investigate extensions of the Hadron Resonance Gas (HRG) Model beyond the ideal case by incorporating both attractive and repulsive interactions into the model. When considering additional states exceeding those measured with high confidence by the Particle Data Group, attractive corrections to t...
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| Format: | Article |
| Language: | English |
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EDP Sciences
2023-01-01
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| Series: | EPJ Web of Conferences |
| Online Access: | https://www.epj-conferences.org/articles/epjconf/pdf/2023/02/epjconf_sqm2022_03014.pdf |
| _version_ | 1811157396873019392 |
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| author | Karthein Jamie M. Koch Volker Ratti Claudia Vovchenko Volodymyr |
| author_facet | Karthein Jamie M. Koch Volker Ratti Claudia Vovchenko Volodymyr |
| author_sort | Karthein Jamie M. |
| collection | DOAJ |
| description | We investigate extensions of the Hadron Resonance Gas (HRG) Model beyond the ideal case by incorporating both attractive and repulsive interactions into the model. When considering additional states exceeding those measured with high confidence by the Particle Data Group, attractive corrections to the overall pressure in the HRG model are imposed. On the other hand, we also apply excluded-volume corrections, which ensure there is no overlap of baryons by turning on repulsive (anti)baryon-(anti)baryon interactions. We emphasize the complementary nature of these two extensions and identify combinations of conserved charge susceptibilities that allow us to constrain them separately. In particular, we find interesting ratios of susceptibilities that are sensitive to one correction and not the other. This allows us to constrain the excluded volume and particle spectrum effects separately. Analysis of the available lattice results suggests the presence of both the extra states in the baryonstrangeness sector and the repulsive baryonic interaction, with indications that hyperons have a smaller repulsive core than non-strange baryons. We note that these results are interesting for heavy-ion-collision systems at both the LHC and RHIC. |
| first_indexed | 2024-04-10T05:06:52Z |
| format | Article |
| id | doaj.art-192424ae4ca0419ab9d876c24ea25dda |
| institution | Directory Open Access Journal |
| issn | 2100-014X |
| language | English |
| last_indexed | 2024-04-10T05:06:52Z |
| publishDate | 2023-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | EPJ Web of Conferences |
| spelling | doaj.art-192424ae4ca0419ab9d876c24ea25dda2023-03-09T12:03:02ZengEDP SciencesEPJ Web of Conferences2100-014X2023-01-012760301410.1051/epjconf/202327603014epjconf_sqm2022_03014Constraints on hadron resonance gas interactions via first-principles Lattice QCD susceptibilitiesKarthein Jamie M.0Koch Volker1Ratti Claudia2Vovchenko Volodymyr3Center for Theoretical Physics, Massachusetts Institute of TechnologyNuclear Science Division, Lawrence Berkeley National LaboratoryDepartment of Physics, University of HoustonNuclear Science Division, Lawrence Berkeley National LaboratoryWe investigate extensions of the Hadron Resonance Gas (HRG) Model beyond the ideal case by incorporating both attractive and repulsive interactions into the model. When considering additional states exceeding those measured with high confidence by the Particle Data Group, attractive corrections to the overall pressure in the HRG model are imposed. On the other hand, we also apply excluded-volume corrections, which ensure there is no overlap of baryons by turning on repulsive (anti)baryon-(anti)baryon interactions. We emphasize the complementary nature of these two extensions and identify combinations of conserved charge susceptibilities that allow us to constrain them separately. In particular, we find interesting ratios of susceptibilities that are sensitive to one correction and not the other. This allows us to constrain the excluded volume and particle spectrum effects separately. Analysis of the available lattice results suggests the presence of both the extra states in the baryonstrangeness sector and the repulsive baryonic interaction, with indications that hyperons have a smaller repulsive core than non-strange baryons. We note that these results are interesting for heavy-ion-collision systems at both the LHC and RHIC.https://www.epj-conferences.org/articles/epjconf/pdf/2023/02/epjconf_sqm2022_03014.pdf |
| spellingShingle | Karthein Jamie M. Koch Volker Ratti Claudia Vovchenko Volodymyr Constraints on hadron resonance gas interactions via first-principles Lattice QCD susceptibilities EPJ Web of Conferences |
| title | Constraints on hadron resonance gas interactions via first-principles Lattice QCD susceptibilities |
| title_full | Constraints on hadron resonance gas interactions via first-principles Lattice QCD susceptibilities |
| title_fullStr | Constraints on hadron resonance gas interactions via first-principles Lattice QCD susceptibilities |
| title_full_unstemmed | Constraints on hadron resonance gas interactions via first-principles Lattice QCD susceptibilities |
| title_short | Constraints on hadron resonance gas interactions via first-principles Lattice QCD susceptibilities |
| title_sort | constraints on hadron resonance gas interactions via first principles lattice qcd susceptibilities |
| url | https://www.epj-conferences.org/articles/epjconf/pdf/2023/02/epjconf_sqm2022_03014.pdf |
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