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Magnetic and electric dipole moments of the H^3 Δ_1 state in ThO

Vutha, A. C. and Spaun, B. and Gurevich, Y. V. and Hutzler, N. R. and Kirilov, E. and Kirilov, J. M. and Gabrielse, G. and DeMille, D. (2011) Magnetic and electric dipole moments of the H^3 Δ_1 state in ThO. Physical Review A, 84 (3). Art. No. 034502. ISSN 1050-2947. https://resolver.caltech.edu/CaltechAUTHORS:20170905-080138880

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Abstract

The metastable H^3 Δ_1 state in the thorium monoxide (ThO) molecule is highly sensitive to the presence of a CP -violating permanent electric dipole moment of the electron (eEDM) [E. R. Meyer and J. L. Bohn, Phys. Rev. A 78, 010502 (2008)]. The magnetic dipole moment μ_H and the molecule-fixed electric dipole moment D_H of this state are measured in preparation for a search for the eEDM. The small magnetic moment μH=8.5(5)×10^(−3)μ_B displays the predicted cancellation of spin and orbital contributions in a ^3Δ_1 paramagnetic molecular state, providing a significant advantage for the suppression of magnetic field noise and related systematic effects in the eEDM search. In addition, the induced electric dipole moment is shown to be fully saturated in very modest electric fields (<10 V/cm). This feature is favorable for the suppression of many other potential systematic errors in the ThO eEDM search experiment.


Item Type:Article
Related URLs:
URLURL TypeDescription
https://doi.org/10.1103/PhysRevA.84.034502DOIArticle
https://journals.aps.org/pra/abstract/10.1103/PhysRevA.84.034502PublisherArticle
https://arxiv.org/abs/1107.2287arXivDiscussion Paper
ORCID:
AuthorORCID
Hutzler, N. R.0000-0002-5203-3635
Additional Information:© 2011 American Physical Society. Received 13 July 2011; published 29 September 2011 Received 13 July 2011. A.V. acknowledges helpful discussions with Alexei Buchachenko. We thank Elizabeth Petrik and Paul Hess for technical assistance and Wes Campbell for comments on the manuscript. This work was supported by the National Science Foundation.
Funders:
Funding AgencyGrant Number
NSFUNSPECIFIED
Issue or Number:3
Classification Code:PACS number(s): 31.30.jp, 11.30.Er, 33.15.Kr
Record Number:CaltechAUTHORS:20170905-080138880
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20170905-080138880
Official Citation:Magnetic and electric dipole moments of the H^3 Δ_1 state in ThO Vutha, A. C. and Spaun, B. and Gurevich, Y. V. and Hutzler, N. R. and Kirilov, E. and Doyle, J. M. and Gabrielse, G. and DeMille, D. Phys. Rev. A. volume 84, issue 3, pages 034502, 2011 Doi: 10.1103/PhysRevA.84.034502 https://link.aps.org/doi/10.1103/PhysRevA.84.034502
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:81119
Collection:CaltechAUTHORS
Deposited By: Ruth Sustaita
Deposited On:05 Sep 2017 17:45
Last Modified:03 Oct 2019 18:39

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