Reconciliation of the measurement of parity nonconservation in Cs with the standard model

被引：125

作者：

Derevianko, A ^{[1
]}

机构：

[1] Harvard Smithsonian Ctr Astrophys, Inst Theoret Atom & Mol Phys, Cambridge, MA 02138 USA

来源：

PHYSICAL REVIEW LETTERS | 2000年 / 85卷 / 08期

关键词：

D O I：

10.1103/PhysRevLett.85.1618

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Contributions from the Breit interaction in atomic structure calculations account for 1.3 sigma of the previously reported 2.5 sigma deviation from the standard model in the Cs-133 weak charge [S.C. Bennett and C.E. Wieman, Phys. Rev. Lett. 82, 2484 (1999)]. The updated corrections for the neutron distribution reduce the discrepancy further to 1.0 sigma. The updated value of the weak charge is Q(W)(Cs-133) = - 72.65(28)(expt)(34)(theor).

引用

页码：1618 / 1621

页数：4

共 26 条

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