2000 character limit reached
On the symmetry improved CJT formalism in the $O(4)$ linear sigma model (1305.4329v5)
Published 19 May 2013 in hep-ph and nucl-th
Abstract: By using the symmetry improved CJT effective formalism developed by Pilaftsis and Teresi, the chiral phase transition is reconsidered in the framework of the $O(4)$ linear sigma model in chiral limit. Our results confirm the restorations of the second-order phase transition and the Goldstone theorem in the Hartree approximation. Finally, we explicitly calculate the effective potentials via the order parameter for various temperatures and address advantages of the present method in comparison with the $O(N)$ model in large-$N$ approximation.
Collections
Sign up for free to add this paper to one or more collections.