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

共 31 条

[1] NEW MEASUREMENT OF THE ELECTRIC-DIPOLE MOMENT OF THE NEUTRON [J].

ALTAREV, IS ;

BORISOV, YV ;

BOROVIKOVA, NV ;

IVANOV, SN ;

KOLOMENSKY, EA ;

LASAKOV, MS ;

LOBASHEV, VM ;

NAZARENKO, VA ;

PIROZHKOV, AN ;

SEREBROV, AP ;

SOBOLEV, YV ;

SHULGINA, EV ;

YEGOROV, AI .

PHYSICS LETTERS B, 1992, 276 (1-2) :242-246

[2] Electric dipole moments as signals of supersymmetric unification [J].

Barbieri, R ;

Romanino, A ;

Strumia, A .

PHYSICS LETTERS B, 1996, 369 (3-4) :283-288

[3] A REVIEW OF CP VIOLATION IN ATOMS [J].

BARR, SM .

INTERNATIONAL JOURNAL OF MODERN PHYSICS A, 1993, 8 (02) :209-236

[4]

BARR SM, 1989, CP VIOLATION, P455

[5]

Bigi I., 1991, Soviet Physics - JETP, V73, P198

[6] Electroweak corrections to the muon anomalous magnetic moment [J].

Czarnecki, A ;

Krause, B ;

Marciano, WJ .

PHYSICAL REVIEW LETTERS, 1996, 76 (18) :3267-3270

[7]

Czarnecki A, 1997, ACTA PHYS POL B, V28, P829

[8] ELECTROWEAK FERMION-LOOP CONTRIBUTIONS TO THE MUON ANOMALOUS MAGNETIC-MOMENT [J].

CZARNECKI, A ;

KRAUSE, B ;

MARCIANO, WJ .

PHYSICAL REVIEW D, 1995, 52 (05) :R2619-R2623

[9] T-VIOLATION IN SU(2) X U(1) GAUGE THEORIES OF LEPTONS [J].

DONOGHUE, JF .

PHYSICAL REVIEW D, 1978, 18 (05) :1632-1643

[10] LEFT-HANDED CURRENTS AND CP VIOLATION [J].

ELLIS, J ;

GAILLARD, MK ;

NANOPOULOS, DV .

NUCLEAR PHYSICS B, 1976, 109 (02) :213-243

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