Measuring nuclear-spin-dependent parity violation with molecules: Experimental methods and analysis of systematic errors

被引：23

作者：

Altuntas, Emine ^{[1
,2
,3
]}

Ammon, Jeffrey ^{[1
,4
]}

Cahn, Sidney B. ^{[1
]}

DeMille, David ^{[1
]}

机构：

[1] Yale Univ, Dept Phys, POB 208120, New Haven, CT 06520 USA

[2] NIST, Joint Quantum Inst, Gaithersburg, MD 20899 USA

[3] Univ Maryland, Gaithersburg, MD 20899 USA

[4] MIT, Lincoln Lab, Lexington, MA 02420 USA

来源：

PHYSICAL REVIEW A | 2018年 / 97卷 / 04期

基金：

美国国家科学基金会;

关键词：

ANAPOLE MOMENT; BEAM SOURCE; NONCONSERVATION; ELECTRON; ENHANCEMENT; COLD; BAND;

D O I：

10.1103/PhysRevA.97.042101

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Nuclear-spin-dependent parity violation (NSD-PV) effects in atoms and molecules arise from Z(0) boson exchange between electrons and the nucleus and from the magnetic interaction between electrons and the parity-violating nuclear anapole moment. It has been proposed to study NSD-PV effects using an enhancement of the observable effect in diatomic molecules [D. DeMille et al., Phys. Rev. Lett. 100, 023003 (2008)]. Here we demonstrate highly sensitive measurements of this type, using the test system (BaF)-Ba-138-F-19. We show that systematic errors associated with our technique can be suppressed to at least the level of the present statistical sensitivity. With similar to 170 h of data, we measure the matrix element W of the NSD-PV interaction with uncertainty delta W/(27 pi) < 0.7 Hz for each of two configurations where W must have different signs. This sensitivity would be sufficient to measure NSD-PV effects of the size anticipated across a wide range of nuclei.

引用

页数：22

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