Van der Waals interactions and hadron resonance gas: role of resonance widths modeling on conserved charges fluctuations
- The quantum van der Waals (QvdW) extension of the ideal hadron resonance gas (HRG) model which includes the attractive and repulsive interactions between baryons – the QvdW-HRG model – is applied to study the behavior of the baryon number related susceptibilities in the crossover temperature region. Inclusion of the QvdW interactions leads to a qualitatively different behavior of susceptibilities, in many cases resembling lattice QCD simulations. It is shown that for some observables, in particular for χBQ11/χB2, effects of the QvdW interactions essentially cancel out. It is found that the inclusion of the finite resonance widths leads to an improved description of χB2, but it also leads to a worse description of χBQ11/χB2, as compared to the lattice data. On the other hand, inclusion of the extra, unconfirmed baryons into the hadron list leads to a simultaneous improvement in the description of both observables.
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| Author: | Volodymyr VovchenkoORCiDGND, Paolo AlbaORCiD, Mark I. GorensteinORCiDGND, Horst StöckerORCiDGND |
|---|---|
| URN: | urn:nbn:de:hebis:30:3-718598 |
| DOI: | https://doi.org/10.1051/epjconf/201817114006 |
| ISSN: | 2100-014X |
| Parent Title (English): | EPJ Web of Conferences |
| Publisher: | EDP Sciences |
| Place of publication: | Les Ulis |
| Document Type: | Article |
| Language: | English |
| Date of Publication (online): | 2018/02/02 |
| Date of first Publication: | 2018/02/02 |
| Publishing Institution: | Universitätsbibliothek Johann Christian Senckenberg |
| Contributing Corporation: | International Conference on Strangeness in Quark Matter (17. : 2017 : Utrecht) |
| Release Date: | 2023/02/16 |
| Volume: | 171 |
| Issue: | 14006 |
| Page Number: | 4 |
| HeBIS-PPN: | 507194896 |
| Institutes: | Physik / Physik |
| Dewey Decimal Classification: | 5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik |
| Sammlungen: | Universitätspublikationen |
| Licence (German): |  Creative Commons - Namensnennung 4.0 |
