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....
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2018-01-01
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Series: | EPJ Web of Conferences |
Online Access: | https://doi.org/10.1051/epjconf/201817114006 |
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doaj-b0e33fbe37874435aed4545779acdd362021-08-02T08:41:46ZengEDP SciencesEPJ Web of Conferences2100-014X2018-01-011711400610.1051/epjconf/201817114006epjconf_sqm2018_14006van der Waals Interactions and Hadron Resonance Gas: Role of resonance widths modeling on conserved charges fluctuationsVovchenko VolodymyrAlba PaoloGorenstein Mark I.Stoecker HorstThe 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.https://doi.org/10.1051/epjconf/201817114006 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Vovchenko Volodymyr Alba Paolo Gorenstein Mark I. Stoecker Horst |
spellingShingle |
Vovchenko Volodymyr Alba Paolo Gorenstein Mark I. Stoecker Horst van der Waals Interactions and Hadron Resonance Gas: Role of resonance widths modeling on conserved charges fluctuations EPJ Web of Conferences |
author_facet |
Vovchenko Volodymyr Alba Paolo Gorenstein Mark I. Stoecker Horst |
author_sort |
Vovchenko Volodymyr |
title |
van der Waals Interactions and Hadron Resonance Gas: Role of resonance widths modeling on conserved charges fluctuations |
title_short |
van der Waals Interactions and Hadron Resonance Gas: Role of resonance widths modeling on conserved charges fluctuations |
title_full |
van der Waals Interactions and Hadron Resonance Gas: Role of resonance widths modeling on conserved charges fluctuations |
title_fullStr |
van der Waals Interactions and Hadron Resonance Gas: Role of resonance widths modeling on conserved charges fluctuations |
title_full_unstemmed |
van der Waals Interactions and Hadron Resonance Gas: Role of resonance widths modeling on conserved charges fluctuations |
title_sort |
van der waals interactions and hadron resonance gas: role of resonance widths modeling on conserved charges fluctuations |
publisher |
EDP Sciences |
series |
EPJ Web of Conferences |
issn |
2100-014X |
publishDate |
2018-01-01 |
description |
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. |
url |
https://doi.org/10.1051/epjconf/201817114006 |
work_keys_str_mv |
AT vovchenkovolodymyr vanderwaalsinteractionsandhadronresonancegasroleofresonancewidthsmodelingonconservedchargesfluctuations AT albapaolo vanderwaalsinteractionsandhadronresonancegasroleofresonancewidthsmodelingonconservedchargesfluctuations AT gorensteinmarki vanderwaalsinteractionsandhadronresonancegasroleofresonancewidthsmodelingonconservedchargesfluctuations AT stoeckerhorst vanderwaalsinteractionsandhadronresonancegasroleofresonancewidthsmodelingonconservedchargesfluctuations |
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1721237960149434368 |