Bulk observables at 5.02 TeV using quasiparticle anisotropic hydrodynamics

Abstract We compare predictions of 3+1D quasiparticle anisotropic hydrodynamics (aHydroQP) for a large set of bulk observables with experimental data collected in 5.02 TeV Pb–Pb collisions. We make predictions for identified hadron spectra, identified hadron average transverse momentum, charged part...

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Autores principales:	Mubarak Alqahtani, Michael Strickland
Formato:	article
Lenguaje:	EN
Publicado:	SpringerOpen 2021
Materias:	Astrophysics QB460-466 Nuclear and particle physics. Atomic energy. Radioactivity QC770-798
Acceso en línea:	https://doaj.org/article/ca46bca0988c4b1f8f3ade5594f2867c
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spelling	oai:doaj.org-article:ca46bca0988c4b1f8f3ade5594f2867c2021-11-28T12:11:51ZBulk observables at 5.02 TeV using quasiparticle anisotropic hydrodynamics10.1140/epjc/s10052-021-09832-z1434-60441434-6052https://doaj.org/article/ca46bca0988c4b1f8f3ade5594f2867c2021-11-01T00:00:00Zhttps://doi.org/10.1140/epjc/s10052-021-09832-zhttps://doaj.org/toc/1434-6044https://doaj.org/toc/1434-6052Abstract We compare predictions of 3+1D quasiparticle anisotropic hydrodynamics (aHydroQP) for a large set of bulk observables with experimental data collected in 5.02 TeV Pb–Pb collisions. We make predictions for identified hadron spectra, identified hadron average transverse momentum, charged particle multiplicity as a function of pseudorapidity, the kaon-to-pion ( $$K/\pi $$ K / π ) and proton-to-pion ( $$p/\pi $$ p / π ) ratios, identified particle and charged particle elliptic flow, and HBT radii. We compare to data collected by the ALICE collaboration in 5.02 TeV Pb–Pb collisions. We find that, based on available data, these bulk observables are well described by aHydroQP with an assumed initial central temperature of $$T_0=630$$ T 0 = 630 MeV at $$\tau _0 = 0.25$$ τ 0 = 0.25 fm/c and a constant specific shear viscosity of $$\eta /s=0.159$$ η / s = 0.159 , which corresponds to a peak specific bulk viscosity of $$\zeta /s = 0.048$$ ζ / s = 0.048 . In particular, we find that the momentum dependence of the kaon-to-pion ( $$K/\pi $$ K / π ) and proton-to-pion ( $$p/\pi $$ p / π ) ratios reported recently by the ALICE collaboration are extremely well described by aHydroQP in the 0–5% centrality class.Mubarak AlqahtaniMichael StricklandSpringerOpenarticleAstrophysicsQB460-466Nuclear and particle physics. Atomic energy. RadioactivityQC770-798ENEuropean Physical Journal C: Particles and Fields, Vol 81, Iss 11, Pp 1-9 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Astrophysics QB460-466 Nuclear and particle physics. Atomic energy. Radioactivity QC770-798
spellingShingle	Astrophysics QB460-466 Nuclear and particle physics. Atomic energy. Radioactivity QC770-798 Mubarak Alqahtani Michael Strickland Bulk observables at 5.02 TeV using quasiparticle anisotropic hydrodynamics
description	Abstract We compare predictions of 3+1D quasiparticle anisotropic hydrodynamics (aHydroQP) for a large set of bulk observables with experimental data collected in 5.02 TeV Pb–Pb collisions. We make predictions for identified hadron spectra, identified hadron average transverse momentum, charged particle multiplicity as a function of pseudorapidity, the kaon-to-pion ( $$K/\pi $$ K / π ) and proton-to-pion ( $$p/\pi $$ p / π ) ratios, identified particle and charged particle elliptic flow, and HBT radii. We compare to data collected by the ALICE collaboration in 5.02 TeV Pb–Pb collisions. We find that, based on available data, these bulk observables are well described by aHydroQP with an assumed initial central temperature of $$T_0=630$$ T 0 = 630 MeV at $$\tau _0 = 0.25$$ τ 0 = 0.25 fm/c and a constant specific shear viscosity of $$\eta /s=0.159$$ η / s = 0.159 , which corresponds to a peak specific bulk viscosity of $$\zeta /s = 0.048$$ ζ / s = 0.048 . In particular, we find that the momentum dependence of the kaon-to-pion ( $$K/\pi $$ K / π ) and proton-to-pion ( $$p/\pi $$ p / π ) ratios reported recently by the ALICE collaboration are extremely well described by aHydroQP in the 0–5% centrality class.
format	article
author	Mubarak Alqahtani Michael Strickland
author_facet	Mubarak Alqahtani Michael Strickland
author_sort	Mubarak Alqahtani
title	Bulk observables at 5.02 TeV using quasiparticle anisotropic hydrodynamics
title_short	Bulk observables at 5.02 TeV using quasiparticle anisotropic hydrodynamics
title_full	Bulk observables at 5.02 TeV using quasiparticle anisotropic hydrodynamics
title_fullStr	Bulk observables at 5.02 TeV using quasiparticle anisotropic hydrodynamics
title_full_unstemmed	Bulk observables at 5.02 TeV using quasiparticle anisotropic hydrodynamics
title_sort	bulk observables at 5.02 tev using quasiparticle anisotropic hydrodynamics
publisher	SpringerOpen
publishDate	2021
url	https://doaj.org/article/ca46bca0988c4b1f8f3ade5594f2867c
work_keys_str_mv	AT mubarakalqahtani bulkobservablesat502tevusingquasiparticleanisotropichydrodynamics AT michaelstrickland bulkobservablesat502tevusingquasiparticleanisotropichydrodynamics
_version_	1718408167207993344

Bulk observables at 5.02 TeV using quasiparticle anisotropic hydrodynamics

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