Quantifying the transport properties of quark-gluon plasma through measurement of higher harmonic flow and their non-linear response
The elusive goal of heavy-ion physics is to understand the transport properties of the quark-gluon plasma (QGP), the form of nuclear matter at extreme temperatures, that prevailed in the first few microseconds after the Big Bang. Transport coefficients, such as the temperature dependent specific shear viscosity η/sand specific bulk viscosity ζ/s, can be constrained with the help of flow measurements. The higher harmonic flow observables and their non-linear responses to the initial state anisotropy have shown compelling potential to constrain the transport properties due to their high sensitivity to various stages of heavy-ion collisions. In this thesis, the measurements of higher harmonic flow up to the ninth order, and their non-linear flow modes up to the seventh harmonic in Pb–Pb collisions with ALICE at CERN-LHC are presented. These measurements are utilized in a Bayesian analysis to constrain the QGP properties and initial conditions of such collisions. In addition, the sensitivities of the high harmonic flow observables to various model parameters are quantified for the first time. This work suggests that a more dynamical picture of the initial conditions is needed to improve the understanding of the uncertainties of the extracted QGP properties or the model building blocks.
...
Publisher
Jyväskylän yliopistoISBN
978-951-39-8932-3ISSN Search the Publication Forum
2489-9003Contains publications
- Artikkeli I: ALICE collaboration. (2020). Higher harmonic non-linear flow modes of charged hadrons in Pb-Pb collisions at √sNN = 5.02 TeV. Journal of High Energy Physics, 2020(5), Article 85. DOI: 10.1007/JHEP05(2020)085
- Artikkeli II: Parkkila, J. E., Onnerstad, A., and Kim, D. J. (2021). Bayesian estimation of the specific shear and bulk viscosity of the quark-gluon plasma with additional flow harmonic observables. Physical Review C 104, 054904. DOI: 10.1103/PhysRevC.104.054904
- Artikkeli III: ALICE collaboration. (2021). Long- and short-range correlations and their event-scale dependence in high-multiplicity pp collisions at √s = 13 TeV. Journal of High Energy Physics, 2021(5), Article 290. DOI: 10.1007/JHEP05(2021)290
Keywords
Metadata
Show full item recordCollections
- JYU Dissertations [862]
- Väitöskirjat [3587]
License
Related items
Showing items with similar title or keywords.
-
Underlying-event properties in pp and p–Pb collisions at √sNN = 5.02 TeV
ALICE Collaboration (Springer, 2023)We report about the properties of the underlying event measured with ALICE at the LHC in pp and p–Pb collisions at √sNN = 5.02 TeV. The event activity, quantified by charged-particle number and summed-pT densities, is ... -
Measurements of the groomed jet radius and momentum splitting fraction with the soft drop and dynamical grooming algorithms in pp collisions at √s = 5.02 TeV
ALICE Collaboration (Springer Science and Business Media LLC, 2023)This article presents measurements of the groomed jet radius and momentum splitting fraction in pp collisions at √ s = 5.02 TeV with the ALICE detector at the Large Hadron Collider. Inclusive charged-particle jets are ... -
Measurement of inclusive and leading subjet fragmentation in pp and Pb–Pb collisions at √sNN = 5.02 TeV
ALICE Collaboration (Springer, 2023)This article presents new measurements of the fragmentation properties of jets in both proton–proton (pp) and heavy-ion collisions with the ALICE experiment at the Large Hadron Collider (LHC). We report distributions of ... -
Dielectron production at midrapidity at low transverse momentum in peripheral and semi-peripheral Pb–Pb collisions at √sNN = 5.02 TeV
ALICE Collaboration (Springer, 2023) -
Jet momentum broadening during initial stages in heavy-ion collisions
Boguslavski, K.; Kurkela, A.; Lappi, T.; Lindenbauer, F.; Peuron, J. (Elsevier, 2024)We study the jet quenching parameter ˆq in the initial pre-equilibrium stages of heavy-ion collisions using the QCD kinetic theory description of the anisotropic quark-gluon plasma. This allows us to smoothly close the gap ...