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arXiv · hep-ph/9606313

Role of Dual Higgs Mechanism in Chiral Phase Transition at Finite Temperature

Shoichi Sasaki·Hideo Suganuma·Hiroshi Toki
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Abstract

The chiral phase transition at finite temperature is studied by using the Schwinger-Dyson equation in the dual Ginzburg-Landau theory, in which the dual Higgs mechanism plays an essential role on both the color confinement and the spontaneous chiral-symmetry breaking. At zero temperature, the quark condensate is strongly correlated with the string tension, which is generated by QCD-monopole condensation, as $\langle {\bar q}q \rangle^{1/3} \stackrel{\propto}{\scriptstyle \sim} \sqrtσ$. In order to solve the finite-temperature Schwinger-Dyson equation numerically, we provide a new ansatz for the quark self-energy in the imaginary-time formalism. The recovery of the chiral symmetry is found at high temperature; $T_{_{C}}\sim 100{\rm MeV}$ with realistic parameters. We find also a strong correlation between the critical temperature $T_{_{C}}$ of the chiral symmetry restoration and the strength of the string tension.

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Shoichi Sasaki, Hideo Suganuma, Hiroshi Toki. 1996-06-12. Role of Dual Higgs Mechanism in Chiral Phase Transition at Finite Temperature. https://doi.org/10.1016/0370-2693(96)01020-9

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