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arXiv · 1507.04174

Pion String evolving in a thermal bath

Fan Lu·Qichang Chen·Hong Mao
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Abstract

By using the symmetry improved CJT effective formalism, we study a pion string of the $O(4)$ linear sigma model at finite temperature in chiral limit. In terms of the Kibble-Zurek mechanism we reconsider the production and evolution of the pion string in a thermal bath. Finally, we estimate the pion string density and its possible signal during the chiral phase transition.

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Fan Lu, Qichang Chen, Hong Mao. 2015-10-01. Pion String evolving in a thermal bath. https://doi.org/10.1103/physrevd.92.085036

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