Dispersion relations for the self-energy in noncommutative field theories

被引：6

作者：

Brandt, FT ^{[1
]}

Das, A

Frenkel, J

机构：

[1] Univ Sao Paulo, Inst Fis, BR-05315970 Sao Paulo, Brazil

[2] Univ Rochester, Dept Phys & Astron, Rochester, NY 14627 USA

来源：

PHYSICAL REVIEW D | 2002年 / 66卷 / 06期

关键词：

D O I：

10.1103/PhysRevD.66.065017

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We study the IR-UV connection in noncommutative phi(3) theory as well as in noncommutative QED from the point of view of the dispersion relation for self-energy. We show that, although the imaginary part of the self-energy is well behaved as the parameter of noncommutativity vanishes, the real part becomes divergent as a consequence of the high energy behavior of the dispersion integral. Some other interesting features that arise from this analysis are also briefly discussed.

引用

页数：10

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