Graduate Program in Physics at UFSC, Florianópolis

 THE PHYSICS GRADUATE PROGRAM invites everyone to the seminar: 

Professora da área de pesquisa Física Nuclear e de Hádrons do PPGFSC

Modelos hadrônicos – Aplicações: diagrama de fases da QCD, vida e morte das estrelas, colisões de íons pesados  

Profª. Drª. Débora Peres Menezes

PPGFSC/UFSC

Abstract:

Hadron physics stands somewhere in the diffuse intersection between nuclear and particle physics and relies largely on the use of models. Historically, around 1930, the first nuclear physics models known as the liquid drop model and the semi-empirical mass formula established the grounds for the study of nuclei properties and nuclear structure. These two models are parameter dependent. Nowadays, around 500 hundred non-relativistic (Skyrme-type) and relativistic models are available and largely used and the vast majority are parameter dependent models. I will discuss some of the shortcomings of using on-relativistic models and the advantages of using relativistic ones when applying them to describe hadronic matter. I will also show possible applications of relativistic models to physical situations that cover part of the QCD phase diagram: I will mention how the description of compact objects can be done, how heavy-ion collisions can be investigated, how parameter dependent the critical end point can be (if it really exists) and show the relation between liquid-gas phase transitions and the pasta phase. Finally, hadronic matter subject to strong magnetic fields will be shortly discussed.

Date: 4/September/2015 – (friday) – Place: Sala 212 – Auditório do Departamento de Física – Time: 10h15min

 THE PHYSICS GRADUATE PROGRAM invites everyone to the seminar: 

Aspectos científicos recentes das mudanças climáticas globais 

Prof. Dr. Paulo Eduardo Artaxo Netto

USP/IF

Abstract:

Poucas questões científicas hoje tem o potencial de mudanças profundas na nossa estrutura sócio-econômica quanto as mudanças climáticas globais. As emissões de gases de efeito estufa devido à queima de combustíveis fósseis alteraram a composição da atmosfera terrestre e o balanço de radiação em nosso planeta. Inúmeros impactos ambientais e climáticos tem sido documentados nas últimas décadas, com previsões de alterações profundas no clima de nosso planeta nas próximas décadas. Discutiremos neste colóquio algumas questões científicas recentes que são chaves na questão das mudanças climáticas globais.

Date: 14/August/2015 – (friday) – Place: Auditório do Espaço Físico Integrado – EFI / 1º andar- Time: 10h15min

THE PHYSICS GRADUATE PROGRAM invites everyone to the seminar: 

  “Cosmological implications of the Yang-Mills vacuum and Dark Energy” 

ROMAN PASECHNIK – Lund University

Abstract:

In my talk I will discuss important implications of the Yang-Mills (in particular, QCD) vacuum dynamics in Cosmology. Such important aspects as compensation of non-perturbative vacua at large distances, de-Sitter solutions of Einstein-Yang-Mills equations with homogeneous SU(2) condensate accounting for the vacuum polarisation, possibility for Cosmic Inflation driven by the Yang-Mills condensate and generation of Dark Energy as a gravitational correction to the QCD ground state energy will be discussed in some basic details.

Date: 24/July/2015 – (friday) – Place: Sala 212 – Auditório do Departamento de Física– Time: 10h15min