Influence of gauge boson mass on dynamical mass generation and chiral phase transition in thermal QED3

• Published in: Results in physics Vol. 51; p. 106617
• Main Authors: Yin, Pei-Lin, Chen, Heng, Yu, Jing
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01.08.2023; Elsevier
• Subjects: Dyson–Schwinger equations; The dynamical mass generation; The spatial part of the boson propagator; The wave function renormalization; The wave function renormalization; The dynamical mass generation; The spatial part of the boson propagator; Dyson–Schwinger equations
• ISSN: 2211-3797; 2211-3797
• DOI: 10.1016/j.rinp.2023.106617

In this work, we quantitatively explore how a finite gauge boson mass affects dynamical mass generation and the chiral phase transition in thermal QED3. To this end, we numerically solve the Dyson–Schwinger equations by considering the contributions coming from the wave function renormalization and the spatial part of the boson propagator at first and then compute the chiral condensate and some of thermodynamic quantities. It is found that the wave function renormalization and the spatial part of the boson propagator are crucial for the numerical solutions of the dressing functions and the value of critical temperature. The behaviors of the thermodynamic quantities and the chiral condensate as a function of temperature consistently imply that the chiral phase transition is none other than a second order one. That critical temperature decreases with increasing gauge boson mass verifies that the gauge boson mass will weaken the interactions between fermions and so suppress dynamical mass generation. •The influences of gauge boson mass on dynamical mass generation are discussed.•A coupled set of integral equations for dressing functions is numerically solved.•The wave function renormalization and spatial part of boson propagator are important.