Non-renormalizability of θ-expanded non-commutative QED -: art. no. 024

被引：0
|
作者：
Wulkenhaar, R [1 ]
机构：
[1] Univ Vienna, Inst Theoret Phys, A-1090 Vienna, Austria
来源：
JOURNAL OF HIGH ENERGY PHYSICS | 2002年 / 03期
关键词：
renormalization regularization and renormalons; gauge symmetry; non-commutative geometry;
D O I：
暂无
中图分类号：
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号：
摘要：
Computing all divergent one-loop Green's functions of theta-expanded non-commutative quantum electrodynamics up to first order in theta, we show that this model is not renormalizable. The reason is a divergence in the electron four-point function which cannot be removed by field redefinitions. Ignoring this problem, we find however clear hints for new symmetries in massless theta-expanded non-commutative QED: four additional divergences which would be compatible with gauge and Lorentz symmetries and which are not reachable by field redefinitions are absent.
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页数：35
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