Neutron electric dipole moment in the standard model: Complete three-loop calculation of the valence quark contributions

被引：122

作者：

Czarnecki, A

Krause, B

机构：

[1] Institut für Theoretische Teilchenphysik, Universität Karlsruhe, Karlsruhe

来源：

PHYSICAL REVIEW LETTERS | 1997年 / 78卷 / 23期

关键词：

D O I：

10.1103/PhysRevLett.78.4339

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We present a complete three-loop calculation of the electric dipole moment of the u and d quarks in the standard model. For the d quark, more relevant for the experimentally important neutron electric dipole moment, we find cancellations which lead to an order of magnitude suppression compared with previous estimates.

引用

页码：4339 / 4342

页数：4