New Limits on Anomalous Spin-Spin Interactions

被引：67

作者：

Almasi, Attaallah ^{[1
,2
]}

Lee, Junyi ^{[1
]}

Winarto, Himawan ^{[1
]}

Smiciklas, Marc ^{[1
]}

Romalis, Michael, V ^{[1
]}

机构：

[1] Princeton Univ, Dept Phys, Princeton, NJ 08544 USA

[2] Netherlands Inst Space Res SRON, NL-9747 AD Groningen, Netherlands

来源：

PHYSICAL REVIEW LETTERS | 2020年 / 125卷 / 20期

基金：

美国国家科学基金会;

关键词：

EXISTENCE; SEARCH;

D O I：

10.1103/PhysRevLett.125.201802

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report the results of a new search for long-range spin-dependent interactions using a Rb-Ne-21 atomic comagnetometer and a rotatable electron spin source based on a SmCo5 magnet with an iron flux return. By looking for signal correlations with the orientation of the spin source we set new constraints on the product of the pseudoscalar electron and neutron couplings g(p)(e)g(p)(n)/(h) over bar (c) < 1.7 x 10(-14) and on the product of their axial couplings g(p)(e)g(p)(n)/(h) over bar (c) < 5 x 10(-42) to a new particle with a mass of less than about 1 mu eV. Our measurements improve by about 2 orders of magnitude previous constraints on such spin-dependent interactions.

引用

页数：5

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