Banca de QUALIFICAÇÃO: LARISSA FERREIRA ELEOTÉRIO

Uma banca de QUALIFICAÇÃO de MESTRADO foi cadastrada pelo programa.
STUDENT : LARISSA FERREIRA ELEOTÉRIO
DATE: 18/12/2023
TIME: 14:00
LOCAL: SALA 3.15 BLOCO C - DCNAT
TITLE:

Symmetries and anomalies in the Chiral Schwinger Model within a Spectral Regularization Scheme

KEY WORDS:

Chiral Schwinger model, Spectral regularization, chiral anomaly

PAGES: 31
BIG AREA: Ciências Exatas e da Terra
AREA: Física
SUBÁREA: Física das Partículas Elementares e Campos
SUMMARY:

We investigate the employment of a non-perturbative regularization scheme – the spectral regularization, which is based on the gauge technique, previously implemented in the context of chiral quark models – in the study of the gauge symmetry preservation within the Schwinger model and violation in the chiral Schwinger model. We show that the spectral regularization provides mathematical consistent and ambiguity free solutions for the two-point functions of both Schwinger and chiral Schwinger models in exact (1+1) dimensions, correctly displaying the gauge invariance in the Schwinger model and the axial anomaly in the chiral Schwinger model. The employment of the spectral regularization avoids any dependence on ambiguous amplitudes and/or unconventional γ5 algebra. Our results reinforce the strength of the spectral regularization as a mathematical consistent, divergence free, and ambiguity free regularization scheme that correctly implements symmetry conservation or violation in each case.

BANKING MEMBERS:
Presidente - 1217987 - ANDRE LUIZ MOTA
Interno - 1212928 - HERON CARLOS DE GODOY CALDAS
Interno - 1672479 - LIZARDO HENRIQUE CERQUEIRA MOREIRA NUNES