Mean-field approximation for the chiral soliton in achiral phase transition

  • Using the mean-field approximation, we study the chiral soliton within the linear sigma model in a thermal vacuum. The chiral soliton equations with different boundary conditions are solved at finite temperatures and densities. The solitons are discussed before and after chiral restoration. We find that the system has soliton solutions even after chiral restoration, and that they are very different from those before chiral restoration, which indicates that the quarks are still bound after chiral restoration.
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ZHANG Hui and SHU Song. Mean-field approximation for the chiral soliton in achiral phase transition[J]. Chinese Physics C, 2015, 39(9): 094104. doi: 10.1088/1674-1137/39/9/094104
ZHANG Hui and SHU Song. Mean-field approximation for the chiral soliton in achiral phase transition[J]. Chinese Physics C, 2015, 39(9): 094104.  doi: 10.1088/1674-1137/39/9/094104 shu
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Received: 2014-12-18
Revised: 2015-03-29
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Mean-field approximation for the chiral soliton in achiral phase transition

    Corresponding author: SHU Song,

Abstract: Using the mean-field approximation, we study the chiral soliton within the linear sigma model in a thermal vacuum. The chiral soliton equations with different boundary conditions are solved at finite temperatures and densities. The solitons are discussed before and after chiral restoration. We find that the system has soliton solutions even after chiral restoration, and that they are very different from those before chiral restoration, which indicates that the quarks are still bound after chiral restoration.

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