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Why Do Deconfinement and Chiral Restoration Coincide at High Temperature? |
| YANG Shu1;GUO Hua2; ZHAO En-Guang3;LÜ Xiao-Fu4,3 |
| 1Department of Physics, School of Sciences, Beijing University of Posts and Telecommunications, Beijing 100876
2Department of Technical Physics, School of Physics, Peking University, Beijing 100871
3Institute of Theoretical Physics, Chinese Academy of Sciences, Beijing 100080
4Department of Physics, Sichuan University, Chengdu 610064 |
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| Cite this article: |
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YANG Shu, GUO Hua, ZHAO En-Guang et al 2004 Chin. Phys. Lett. 21 620-623 |
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Abstract The global colour model in free space is extended to finite temperature to study the deconfinement and chiral phase transitions at high temperature T and zero chemical potential in the mean field approximation. Both possibilities of coincidence and non-coincidence of the two distinct phase transitions are found when the model parameters are varied in a certain range. The underlying mechanisms of the coincidence and noncoincidence are analysed and discussed. The validity of the T-dependent model propagator as the input is also discussed.
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| Keywords:
12.38.Mh
12.38.Aw
12.38.Lg
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Published: 01 April 2004
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| PACS: |
12.38.Mh
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(Quark-gluon plasma)
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12.38.Aw
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(General properties of QCD (dynamics, confinement, etc.))
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12.38.Lg
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(Other nonperturbative calculations)
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