Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
1994-02-02
Phys.Rev. D50 (1994) 1068-1076
Physics
High Energy Physics
High Energy Physics - Phenomenology
17 pages + 13 figures (available upon request), Oxford preprint OUTP-93-30P, IFUNAM preprint FT94-39, LaTex
Scientific paper
10.1103/PhysRevD.50.1068
A recent study of dynamical chiral symmetry breaking in N-flavour QED$_3$ at finite temperature is extended to include the effect of fermion wavefunction renormalisation in the Schwinger-Dyson equations. The simple ``zero-frequency'' truncation previously used is found to lead to unphysical results, especially as $T \to 0$. A modified set of equations is proposed, whose solutions behave in a way which is qualitatively similar to the $T=0$ solutions of Pennington et al. [5-8] who have made extensive studies of the effect of wavefunction renormalisation in this context, and who concluded that there was no critical $N_c$ (at T=0) above which chiral symmetry was restored. In contrast, we find that our modified equations predict a critical $N_c$ at $T \not= 0$, and an $N-T$ phase diagram very similar to the earlier study neglecting wavefunction renormalisation. The reason for the difference is traced to the different infrared behaviour of the vacuum polarisation at $T=0$ and at $T \not= 0$.
Aitchison Ian J. R.
Klein-Kreisler Martin
No associations
LandOfFree
Effect of Wavefunction Renormalisation in N-Flavour Qed3 at Finite Temperature does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Effect of Wavefunction Renormalisation in N-Flavour Qed3 at Finite Temperature, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Effect of Wavefunction Renormalisation in N-Flavour Qed3 at Finite Temperature will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-494241