Neutrality Effects on the Phase Structure of the Linear Sigma Model with the Non-standard Symmetry Breaking

Tran Huu Phat; Nguyen Van Long; Nguyen Van Thu

doi:10.15625/0868-3166/22/3/2521

Neutrality Effects on the Phase Structure of the Linear Sigma Model with the Non-standard Symmetry Breaking

Tran Huu Phat, Nguyen Van Long, Nguyen Van Thu

Author affiliations

Authors

Tran Huu Phat
Nguyen Van Long Gia Lai Junior College of Education
Nguyen Van Thu Department of Physics, Hanoi University of Education II and Institute for Nuclear Science and Technique

DOI:

https://doi.org/10.15625/0868-3166/22/3/2521

Abstract

The neutrality effects on the phase structure of the linear sigma model with the non-standard symmetry breaking term is systematically studied by means of the Cornwall-Jackiw-Tomboulis effective potential. The latter quantity is calculated in the improved Hartree-Fock approximation which preserves the Goldstone theorem and the thermodynamic consistency. Its results that in the region \(\mu > m_\pi\), as a function of the temperature \(T\), the pion condensate undergoes a second order phase transition, as a function of the isospin chemical \(\mu\), it undergoes a first order phase transition. In the region \(\mu < m_\pi\), the pion condensation is always a first order phase transition.

Downloads

Download data is not yet available.

Metrics

Metrics Loading ...

Downloads

Published

30-10-2012

How to Cite

[1]

T. H. Phat, N. V. Long, and N. V. Thu, “Neutrality Effects on the Phase Structure of the Linear Sigma Model with the Non-standard Symmetry Breaking”, Comm. Phys., vol. 22, no. 3, p. 213, Oct. 2012.

IEEE

Download Citation

Issue

Vol. 22 No. 3 (2012)

Section

Papers

License

Authors who publish with CIP agree with the following terms:

The manuscript is not under consideration for publication elsewhere. When a manuscript is accepted for publication, the author agrees to automatic transfer of the copyright to the editorial office.
The manuscript should not be published elsewhere in any language without the consent of the copyright holders. Authors have the right to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal’s published version of their work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
Authors are encouraged to post their work online (e.g., in institutional repositories or on their websites) prior to or during the submission process, as it can lead to productive exchanges or/and greater number of citation to the to-be-published work (See The Effect of Open Access).