New constraints on axion-mediated P,T-violating interaction from electric dipole moments of diamagnetic atoms

被引：31

作者：

Dzuba, V. A. ^{[1
]}

Flambaum, V. V. ^{[1
]}

Samsonov, I. B. ^{[1
,2
]}

Stadnik, Y. V. ^{[3
]}

机构：

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

[2] JINR, Bogoliubov Lab Theoret Phys, Dubna 141980, Moscow Region, Russia

[3] Johannes Gutenberg Univ Mainz, Helmholtz Inst Mainz, D-55099 Mainz, Germany

来源：

PHYSICAL REVIEW D | 2018年 / 98卷 / 03期

基金：

澳大利亚研究理事会;

关键词：

INVISIBLE AXION; HARMLESS AXION; CP INVARIANCE; SPIN; NUCLEAR; WINDOW; LIMITS;

D O I：

10.1103/PhysRevD.98.035048

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The exchange of an axionlike particle between atomic electrons and the nucleus may induce electric dipole moments (EDMs) of atoms and molecules. This interaction is described by a parity- and timereversal- invariance-violating potential which depends on the product of a scalar gs and a pseudoscalar g(p) coupling constant. We consider the interaction with the specific combination of these constants, g(e)(s)g(N)(p), which gives significant contributions to the EDMs of diamagnetic atoms. In this paper, we calculate these contributions to the EDMs of Hg-199, Xe-129, Rn-211, and Ra-225 for a wide range of axion masses. Comparing these results with recent experimental EDM measurements, we place new constraints on g(e)(s)g(N)(p). The most stringent atomic EDM limits come from Hg-199 and improve on existing laboratory limits from other experiments for axion masses exceeding 10(-2) eV.

引用

页数：5

共 19 条

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