Direct measurement of the γHe / γXe ratio at ultralow magnetic field. (June 2016)

• Record Type: Journal Article
• Authors: Fan, Isaac; Knappe-Grüneberg, Silvia; Voigt, Jens; Kilian, Wolfgang; Burghoff, Martin; Stollfuss, Detlef; Schnabel, Allard; Wübbeler, Gerd; Bodner, Olha; Elster, Clemens; Seifert, Frank; Trahms, Lutz
• Is Part Of: Journal of physics. Volume 723(2016)
• Publication Date: 2016-06
• Subjects: Physics -- Congresses; 530.5
• DOI: 10.1088/1742-6596/723/1/012045
• Languages: English
• ISSNs: 1742-6588

Abstract

Abstract: A co-located 3 He and 129 Xe nuclear spin free precession measurement at sub-μT magnetic field was carried out in a magnetically shielded environment. The uncorrected quotient of the gyromagnetic ratios between neutral 3 He and 129 Xe atoms is determined to be 2.754 082 81(07), accounting for only statistical error. Our measurement shows that this ratio has a stability of 1.4×10 -5 / √ τ, demonstrating the ability to reach the current precision limit of the quotient in a 10000 s of averaging time τ . This precision is enough for the next-generation EDM search in neutral 129 Xe atoms based on a similar comagnetometer scheme.