Nonlinear Walecka Model Thermodynamics

• Grant number: 23/01177-3
• Support Opportunities: Scholarships in Brazil - Scientific Initiation
• Start date: April 01, 2023
• End date: September 30, 2024
• Field of knowledge: Physical Sciences and Mathematics - Physics - Nuclear Physics
• Principal Investigator: Luiz Antonio Barreiro
• Grantee: Pedro Henrique Lopes Nanzer
• Host Institution: Instituto de Geociências e Ciências Exatas (IGCE). Universidade Estadual Paulista (UNESP). Campus de Rio Claro. Rio Claro , SP, Brazil

Abstract

The Effective Field Theory, whose degrees of freedom are hadrons and mesons, also known as Quantum Hadrodynamics, will be used in the development of this project. We use this theory to study a hypothetical infinite system composed of nucleons (protons and neutrons), the so-called nuclear matter. Finding the energy and pressure densities of this exotic matter is one of the goals of this project. The addition of nonlinear terms in the scalar potential allows to describe with greater precision some characteristics of this dense matter and the introduction of the partition function helps us to extend the theory to systems with temperatures different from zero. In the end, it is intended to understand how the properties of nuclear matter change with the alteration of the parameters of this non-linear potential, making use of non-linear dynamics techniques.