The electric dipole moment of the deuteron from the QCD θ-term

被引：48

作者：

Bsaisou, J. ^{[1
,2
]}

Hanhart, C. ^{[1
,2
,3
,4
]}

Liebig, S. ^{[1
,2
]}

Meissner, U. -G. ^{[1
,2
,3
,4
,5
,6
]}

Nogga, A. ^{[1
,2
,3
,4
]}

Wirzba, A. ^{[1
,2
,3
,4
]}

机构：

[1] Forschungszentrum Julich, Inst Kernphys, D-52425 Julich, Germany

[2] Forschungszentrum Julich, Julich Ctr Hadron Phys, D-52425 Julich, Germany

[3] Forschungszentrum Julich, Inst Adv Simulat, D-52425 Julich, Germany

[4] Forschungszentrum Julich, JARA Forces & Matter Experiments, D-52425 Julich, Germany

[5] Univ Bonn, Helmholtz Inst Strahlen & Kernphys, D-53115 Bonn, Germany

[6] Univ Bonn, Bethe Ctr Theoret Phys, D-53115 Bonn, Germany

来源：

EUROPEAN PHYSICAL JOURNAL A | 2013年 / 49卷 / 03期

关键词：

CHIRAL PERTURBATION-THEORY; PION-NUCLEON SCATTERING; PROTON MASS DIFFERENCE; PRECISION CALCULATION; TIME-REVERSAL; FORM-FACTOR; VIOLATION; SYMMETRY; REPRESENTATION; ENERGY;

D O I：

10.1140/epja/i2013-13031-x

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

The two-nucleon contributions to the electric dipole moment (EDM) of the deuteron, induced by the QCD theta-term, are calculated in the framework of effective field theory up-to-and-including next-to-next-to-leading order. In particular we find for the difference of the deuteron EDM and the sum of proton and neutron EDM induced by the QCD theta-term a value of (-5.4+/-3.9) (theta) over bar x 10(-4) e fm. The by far dominant uncertainty comes from the CP- and isospin-violating pi NN coupling constant.

引用

页数：14

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