Banca de DEFESA: VICTOR GRANA DE LIMA

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : VICTOR GRANA DE LIMA
DATE: 30/04/2026
TIME: 10:00
LOCAL: UAF
TITLE:

Anomalous Magnetic Moment of the Muon

KEY WORDS:

Magnetic Moment. Standard Model. New Physics. g-2 of the muon

PAGES: 50
BIG AREA: Ciências Exatas e da Terra
AREA: Física
SUBÁREA: Física das Partículas Elementares e Campos
SPECIALTY: Teoria Geral de Partículas e Campos
SUMMARY:

The Standard Model (SM) of Particle Physics is a highly developed theory, since its theoretical predictions show excellent agreement with experimental data. One example of this is the confirmation of the Higgs boson at the LHC in July 2012. Despite its success, the SM is unable to explain several fundamental phenomena, such as the unification of the four fundamental interactions and the nature of dark matter and dark energy. In this work, we address one of the problems that has been investigated since the 1950s but has gained prominence in the last two decades in Particle Physics: the anomalous magnetic moment of the muon. It is currently known that the muon has a gyromagnetic factor (g) which, according to Dirac’s theory, is equal to 2. Nevertheless, experiments show that this factor deviates from that value. One of the first experiments to demonstrate this deviation with high precision was carried out at Brookhaven National Laboratory: Experiment (E821), in 2001. In this first stage of the research, we determine the value of the gyromagnetic factor via the Dirac equation, as well as the deviation of g within the SM. We also highlight the main experiments that measured this factor. Finally, in our conclusion, we leave open the choice of the model that we will adopt in order to resolve this problem at the end of the research.

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