Symmetries and symmetry breaking patterns in QCD: chiral and deconfinement transitions
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- 作者：Wolfram Weise
- 刊名：Nuclear Physics A
- 出版年：2010
- 出版时间：1 November 2010
- 年：2010
- 卷：844
- 期：1-4
- 页码：73c-79c
- 全文大小：349 K
文摘
The symmetry breaking pattern of QCD features two seemingly disconnected phenomena: the spontaneous breakdown of the Z(3) center symmetry in the deconfinement transition of pure-gauge QCD, and the spontaneous breaking of chiral SU(Nf)×SU(Nf) symmetry in the limit of Nf massless quark flavours. The dynamical entanglement of these symmetries is displayed in the framework of a schematic model (the PNJL model) in comparison with results from Lattice QCD. Extensions to non-zero baryon chemical potential are discussed.