A1 Journal article (refereed)
Predictions for multiplicities and flow harmonics in 5.44 TeV Xe+Xe collisions at the CERN Large Hadron Collider (2018)
Eskola, K., Niemi, H., Paatelainen, R., & Tuominen, K. (2018). Predictions for multiplicities and flow harmonics in 5.44 TeV Xe+Xe collisions at the CERN Large Hadron Collider. Physical Review C, 97(3), Article 034911. https://doi.org/10.1103/PhysRevC.97.034911
JYU authors or editors
Publication details
All authors or editors: Eskola, Kari; Niemi, Harri; Paatelainen, R.; Tuominen, K.
Journal or series: Physical Review C
ISSN: 2469-9985
eISSN: 2469-9993
Publication year: 2018
Volume: 97
Issue number: 3
Article number: 034911
Publisher: American Physical Society
Publication country: United States
Publication language: English
DOI: https://doi.org/10.1103/PhysRevC.97.034911
Publication open access: Openly available
Publication channel open access: Partially open access channel
Publication is parallel published (JYX): https://jyx.jyu.fi/handle/123456789/57413
Abstract
We present the event-by-event next-to-leading-order perturbative-QCD + saturation + viscous hydrodynamics (EKRT) model predictions for the centrality dependence of the charged hadron multiplicity in the pseudorapidity interval |η|≤0.5, and for the centrality dependence of the charged hadron flow harmonics vn{2} obtained from two-particle cumulants, in √sNN=5.44 TeV Xe+Xe collisions at the CERN Large Hadron Collider. Our prediction for the 0–5 % central charged multiplicity is dNch/dη=1218±46. We also predict vn{2} in Xe+Xe collisions to increase more slowly from central towards peripheral collisions than those in a Pb+Pb system. We find that at 10,⋯,50% centralities v2{2} is smaller and v3{2} is larger than in the Pb+Pb system while v4{2} is of the same magnitude in both systems. We also find that the ratio of flow harmonics in Xe+Xe collisions and in Pb+Pb collisions shows a slight sensitivity to the temperature dependence of the shear-viscosity–to–entropy ratio. As we discuss here, the new nuclear mass-number systematics especially in the flow harmonics serves as a welcome further constraint for describing the space-time evolution of a heavy-ion system and for determining the shear viscosity and other transport properties of strongly interacting matter.
Keywords: particle physics
Free keywords: collective flow; hydrodynamic models; particle and resonance production; relativistic heavy-ion collisions
Contributing organizations
Related projects
- Parton distributions and QCD matter in LHC nuclear collisions
- Eskola, Kari
- Research Council of Finland
Ministry reporting: Yes
Reporting Year: 2018
JUFO rating: 2