Sumários

T20

13 Maio 2021, 10:00 João Paulo Ferreira da Silva

Chapter 7: Radiative Corrections
Divergences as poles of the Gamma function.
Dimensional regularization. Wick rotation.
Bibliography: pgs. 339-346; first 16 pages of https://porthos.tecnico.ulisboa.pt/Public/textos/one-loop.pdf .


T19

11 Maio 2021, 15:00 João Paulo Ferreira da Silva

Decay width of the Z0 into fermions. The helicity amplitudes method for the decay of the Z0 into massless fermions.
Scattering electron-positron -> muon-antimuon in the Standard Model.
END of Chapter 6
Bibliography: pgs. 240-249.


T18

6 Maio 2021, 10:00 João Paulo Ferreira da Silva

Chapter 6: Simple Examples in the Standard Model
Introduction to the Standard Model of Electroweak Interactions. Propagators, charged and neutral currents.
Illustration of Parity and Charge Cojugation violation in the Weak interactions.
Mention of Pion decay.
Bibliography: pgs. 235-240; problem 6.10.


T17

4 Maio 2021, 15:00 João Paulo Ferreira da Silva

Practical Lecture on the installation and use of the software (with computers). The scatterings (e nubar --> e nubar) and (e nubar --> mu numubar) in the SM.


T16

29 Abril 2021, 10:00 João Paulo Ferreira da Silva

Lecture on software programs used to make calculations in field theory: FeynCalc and qgraf (using the Moller scattering in QED as an example).