Quantum field formalism of neutrino oscillations

• Grant number: 24/01465-1
• Support Opportunities: Scholarships in Brazil - Doctorate
• Start date: July 01, 2024
• End date: June 30, 2028
• Field of knowledge: Physical Sciences and Mathematics - Physics - Elementary Particle Physics and Fields
• Principal Investigator: Orlando Luis Goulart Peres
• Grantee: Guilherme de Araújo Nogueira
• Host Institution: Instituto de Física Gleb Wataghin (IFGW). Universidade Estadual de Campinas (UNICAMP). Campinas , SP, Brazil

Abstract

The primary objective of this PhD project is to investigate the neutrinooscillation phenomenon by utilizing wave packets within the theoretical frameworks of quantum field theory. The standard scenario involving three light neutrinos mixing is known as coherence conditions. These conditions specify that the oscillation equation obtained from plane waves precisely corresponds to the wavelet equation identified in quantum mechanics and quantum field theory. In exploring physics beyond the standard model, conventional calculations have usedplane wave approximation to determine oscillation probabilities. We aim to enhance the framework by employing quantum mechanics andquantum field theory wave packets within these beyond-standard models. We aim to investigatewhether specific experimental outcomes can be clarified by combining physics beyond the standard model and a thorough application of quantum fieldtheory.