The 2PPI expansion: dynamical mass generation and vacuum energy
The 2PPI expansion: dynamical mass generation and vacuum energy
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2PPI 展开:动态质量生成和真空能
DOI:
10.1142/9789812702845_0033
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发表时间:
2003
期刊:
影响因子:
--
通讯作者:
J. Gracey
中科院分区:
文献类型:
--
作者:
D. Dudal;H. Verschelde;R. E. Browne;J. Gracey
We discuss the 2PPI expansion, a summation of the bubble graphs up to all orders, by means of the 2D Gross-Neveu toy model, whose exact mass gap and vacuum energy are known. Then we use the expansion to give analytical evidence that a dimension two gluon condensate exists for pure Yang-Mills in the Landau gauge. This condensate consequently gives rise to a dynamical gluon mass.