Quantifying corrections to the hadron resonance gas with lattice QCD - Archive ouverte HAL Accéder directement au contenu
Communication Dans Un Congrès Année : 2022

Quantifying corrections to the hadron resonance gas with lattice QCD

Rene Bellwied
  • Fonction : Auteur
Szabolcs Borsányi
  • Fonction : Auteur
Zoltán Fodor
  • Fonction : Auteur
Sándor D. Katz
  • Fonction : Auteur
Paolo Parotto
  • Fonction : Auteur
Attila Pásztor
  • Fonction : Auteur
Dávid Pesznyák
  • Fonction : Auteur
Claudia Ratti
  • Fonction : Auteur
Kálmán K. Szabó
  • Fonction : Auteur

Résumé

The hadron resonance gas (HRG) model and its extensions are often used to describe the hadronic phase of strongly interacting matter. In our work we use lattice-QCD simulations with temporal extents of $N_\tau=8,10$ and $12$ to quantify corrections to the ideal HRG. Firstly, we determine a number of subleading fugacity expansion coefficients of the QCD free energy via a two-dimensional scan on the imaginary baryon number chemical potential ($\mu_B$) - strangeness chemical potential ($\mu_S$) plane. Using the aforementioned coefficients, we also extrapolate ratios of baryon number and strangeness fluctuations and correlations to finite chemical potentials via a truncated fugacity expansion. Our results extrapolated along the crossover line $T_\mathrm{c}(\mu_B)$ at strangeness neutrality are able to reproduce trends of experimental net-proton fluctuations measured by the STAR Collaboration.

Dates et versions

hal-03507436 , version 1 (03-01-2022)

Identifiants

Citer

Rene Bellwied, Szabolcs Borsányi, Zoltán Fodor, Jana N. Guenther, Sándor D. Katz, et al.. Quantifying corrections to the hadron resonance gas with lattice QCD. 38th International Symposium on Lattice Field Theory, Jul 2021, Online, United States. pp.186, ⟨10.22323/1.396.0186⟩. ⟨hal-03507436⟩
28 Consultations
0 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More