High-precision calculation of parity nonconservation in cesium and test of the standard model

被引：134

作者：

Dzuba, VA ^{[1
]}

Flambaum, VV ^{[1
]}

Ginges, JSM ^{[1
]}

机构：

[1] Univ New S Wales, Sch Phys, Sydney, NSW 2052, Australia

来源：

PHYSICAL REVIEW D | 2002年 / 66卷 / 07期

关键词：

D O I：

10.1103/PhysRevD.66.076013

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We calculate the 6s-7s parity nonconserving (PNC) E1 transition amplitude E-PNC in cesium. We use an improved all-order technique in the calculation of the correlations and include all significant contributions to E-PNC. Our final value E-PNC = 0.904(1+/-0.5%) x 10(-11)iea(B)(-Q(W)/N) has half the uncertainty claimed in old calculations used for the interpretation of Cs PNC experiments. The resulting nuclear weak charge Q(W) for Cs deviates by about 2sigma from the value predicted by the standard model.

引用

页数：11

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