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寻找中子电偶极矩。

Search for a Neutron Electric Dipole Moment.

作者信息

Golub R, Huffman P R

机构信息

Physics Department, North Carolina State University, Raleigh, NC 27695 USA.

出版信息

J Res Natl Inst Stand Technol. 2005 Jun 1;110(3):169-72. doi: 10.6028/jres.110.019. Print 2005 May-Jun.

Abstract

The possible existence of a nonzero electric dipole moment (EDM) of the neutron is of great fundamental interest in itself and directly impacts our understanding of the nature of electro-weak and strong interactions. The experimental search for this moment has the potential to reveal new sources of T and CP violation and to challenge calculations that propose extensions to the Standard Model. The goal of the current experiment is to significantly improve the measurement sensitivity to the neutron EDM over what is reported in the literature. The experiment has the potential to either measure the magnitude of the neutron EDM or to lower the current experimental limit by two orders of magnitude. Achieving these objectives will have a major impact on our understanding of the physics of both weak and strong interactions.

摘要

中子非零电偶极矩(EDM)的可能存在本身就具有极大的基础研究价值,并且直接影响我们对电弱相互作用和强相互作用本质的理解。对这一矩的实验探索有可能揭示时间反演对称性(T)和电荷宇称对称性(CP)破缺的新来源,并对那些提出扩展标准模型的计算构成挑战。当前实验的目标是将对中子EDM的测量灵敏度在文献报道的基础上显著提高。该实验有可能测量中子EDM的大小,或者将当前的实验限制降低两个数量级。实现这些目标将对我们对弱相互作用和强相互作用物理的理解产生重大影响。

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引用本文的文献

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本文引用的文献

1
Production and storage of ultracold neutrons in superfluid 4He.
Phys Rev Lett. 1993 Jan 25;70(4):517. doi: 10.1103/PhysRevLett.70.517.
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Observation of ultracold-neutron production by 9-Å cold neutrons in superfluid helium.
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