2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/40464These lectures review phases and phase transitions of the Standard Model, with emphasis on those aspects which are amenable to a first principle study. Model calculations and theoretical ideas of practical applicability are discussed as well. Contents: 1.Overview; 2. Field Theory at Finite Temperature and Density; 3.Critical Phenomena; 4.Electroweak Interactions at Finite Temperature; 5. Thermodynamics of Four Fermions models; 6.The Phases of QCD; 7.QCD at Finite Temperature, $μ_B = 0$; 8.QCD at Finite Temperature, $μ_B \ne 0$.34 pages, 11 figures; lectures given at the Summer School on Astroparticle Physics and Cosmology, ICTP, Trieste, 12-30 June 2000 ; Comments and references addedHigh Energy Physics - PhenomenologyHigh Energy Physics - Latticetext