logo SBA

ETD

Digital archive of theses discussed at the University of Pisa

 

Thesis etd-01262018-105617


Thesis type
Tesi di dottorato di ricerca
Author
ANDREOLI, MICHELE
URN
etd-01262018-105617
Thesis title
The Roberge-Weiss QCD transition and Debye color screening
Academic discipline
FIS/02
Course of study
FISICA
Supervisors
tutor Prof. D'Elia, Massimo
controrelatore Dott. Cosmai, Leonardo
controrelatore Prof. Di Renzo, Francesco
controrelatore Prof. Sozzi, Marco
controrelatore Prof. Vicari, Ettore
Keywords
  • Lattice
  • QCD
  • Roberge-Weiss
  • screening masses
Graduation session start date
01/02/2018
Availability
Full
Summary
This thesis is focused on one of the typical phenomena of the plasma phase: the color screening effect and the possible influence of a non zero baryon density, using Lattice QCD. Lattice simulations provide an extraordinary “first principle” tool for the theoretical QCD vacuum analysis and the deconfinement transition, as they are able to explore conditions in which analytical or perturbative methods fail. Debye's masses are extracted from the Polyakov loop correlators, calculated at imaginary chemical potential, the only case in which the Monte Carlo Method is still applicable without modification, and then compared to those that can be obtained from the Thermal Field Theory, via analytical continuation.
File