Finite-size effects on the Phase Structure of the Walecka Model

• Main Authors: Abreu, L. M, Nery, E. S
• Format: Journal Article
• Language: English
• Published: 21-11-2017
• Subjects: Physics - High Energy Physics - Phenomenology; Physics - High Energy Physics - Theory; Physics - Nuclear Theory
• DOI: 10.48550/arxiv.1711.07934

Phys. Rev. C 96, 055204 (2017) In this work we investigate the finite-size effects on the phase structure of
Walecka model within the framework of generalized Zeta-function, focusing on
the influence of temperature as well as the number and length of compactified
spatial dimensions. Here we concentrate on the situation of larger values of
the coupling between the scalar and fermion fields, in which a phase transition
of first order takes place. The phase transitions are analyzed and compared
with the system in the situations of one, two and three compactified spatial
dimensions. Our findings suggest that the thermodynamic behavior of the system
depends on the length and number of spatial dimensions, with the symmetric
phase being favored as the size of the system diminishes.