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.
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页码：4339 / 4342
页数：4
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