η string formation in QCD chiral phase transition

  • In the paper we discuss the role of the axial U(1)A symmetry in the chiral phase transition using the U(Nf)R×U(Nf)L linear sigma model with two massless quark flavors. It is expected that above a certain temperature the axial U(1)A symmetry will be restored. A string-like static solution, the η string can be formed and detected in the ultrarelativistic heavy-ion collision process.

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XU Xiao-Mei, FU Yong-Ping and LI Yun-De. η string formation in QCD chiral phase transition[J]. Chinese Physics C, 2010, 34(4): 444-447. doi: 10.1088/1674-1137/34/4/004
XU Xiao-Mei, FU Yong-Ping and LI Yun-De. η string formation in QCD chiral phase transition[J]. Chinese Physics C, 2010, 34(4): 444-447.  doi: 10.1088/1674-1137/34/4/004 shu
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Received: 2009-05-22
Revised: 2009-07-24
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η string formation in QCD chiral phase transition

    Corresponding author: FU Yong-Ping,

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In the paper we discuss the role of the axial U(1)A symmetry in the chiral phase transition using the U(Nf)R×U(Nf)L linear sigma model with two massless quark flavors. It is expected that above a certain temperature the axial U(1)A symmetry will be restored. A string-like static solution, the η string can be formed and detected in the ultrarelativistic heavy-ion collision process.

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