Advisor | Lin, Zi-Wei | |
Author | MacKay, Noah | |
Date Accessioned | 2022-06-09T19:10:49Z | |
Date Available | 2022-06-09T19:10:49Z | |
Date Created | 2022-05 | |
Date of Issue | 2022-05-02 | |
xmlui.metadata.dc.date.submitted | May 2022 | |
Identifier (URI) | http://hdl.handle.net/10342/10649 | |
Description | Quark-gluon plasma (QGP) is a state of matter that is formed from relativistic heavy-ion collisions and also in the early universe. The quarks and gluons as quasi-free particles resemble an expanding viscous liquid under extremely high temperatures and densities. The shear viscosity, [eta], of the QGP under isotropic scatterings in full equilibrium (meaning thermal and chemical equilibrium) is already known analytically and numerically. Analytically, the viscosity obtained via the Chapman-Enskog (CE) method agrees well with the numerical Green-Kubo values for the viscosity under anisotropic scatterings as well as isotropic scatterings. In this thesis, we use the CE formula, along with other approximation methods, for viscosity to derive [eta] / s and compare the analytical curves with the numerical values for forward-angle scatterings. My contribution is the correction of two typos in the published CE and ModRTA formulae of viscosity and the application of all obtained formulae to three-dimensional expansion cases under full and partial equilibrium. This includes the calculations of shear viscosity, entropy density, and the [eta] / s ratio of the parton system from the AMPT model as a function of time of the parton evolution. | |
Mimetype | application/pdf | |
Language | en | |
Publisher | East Carolina University | |
Subject | particle physics | |
Library of Congress Subject Headings | Quark-gluon plasma | |
Library of Congress Subject Headings | Viscosity | |
Library of Congress Subject Headings | Anisotropy | |
Title | The shear viscosity of quark-gluon plasma under anisotropic scatterings | |
Type | Master's Thesis | |
xmlui.metadata.dc.date.updated | 2022-06-07T18:24:32Z | |
Department | Physics | |
xmlui.metadata.dc.degree.name | M.S. | |
xmlui.metadata.dc.degree.level | Masters | |
xmlui.metadata.dc.degree.discipline | MS-Physics | |
xmlui.metadata.dc.degree.grantor | East Carolina University | |
xmlui.metadata.dc.degree.department | Physics | |
xmlui.metadata.dc.access.option | Open Access | |
xmlui.metadata.dc.type.material | text | |