Cancellation of soft and collinear divergences in noncommutative QED

被引：6

作者：

Mirza, B. ^{[1
]}

Zarei, M. ^{[1
]}

机构：

[1] IUT, Dept Phys, Esfahan, Iran

来源：

PHYSICAL REVIEW D | 2006年 / 74卷 / 06期

关键词：

D O I：

10.1103/PhysRevD.74.065019

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

In this paper, we investigate the behavior of noncommutative IR divergences and will also discuss their cancellation in the physical cross sections. The commutative IR (soft) divergences existing in the nonplanar diagrams will be examined in order to prove an all-order cancellation of these divergences using the Weinberg's method. In noncommutative QED, collinear divergences due to triple photon splitting vertex, were encountered, which are shown to be canceled out by the noncommutative version of KLN theorem. This guarantees that there is no mixing between the Collinear, soft divergences and noncommutative IR divergences.

引用

页数：10

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