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Methods, analysis, and the treatment of systematic errors for the electron electric dipole moment search in thorium monoxide

Baron, J. and Campbell, W. C. and DeMille, D. and Doyle, J. M. and Gabrielse, G. and Gurevich, Y. V. and Hess, P. W. and Hutzler, N. R. and Kirilov, E. and Kozyryev, I. and O’Leary, B. R. and Panda, C. D. and Parsons, M. F. and Spaun, B. and Vutha, A. C. and West, A. D. and West, E. P. (2017) Methods, analysis, and the treatment of systematic errors for the electron electric dipole moment search in thorium monoxide. New Journal of Physics, 19 (7). Art. No. 073029. ISSN 1367-2630. doi:10.1088/1367-2630/aa708e.

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We recently set a new limit on the electric dipole moment of the electron (eEDM) (J Baron et al and ACME collaboration 2014 Science 343 269–272), which represented an order-of-magnitude improvement on the previous limit and placed more stringent constraints on many charge-parity-violating extensions to the standard model. In this paper we discuss the measurement in detail. The experimental method and associated apparatus are described, together with the techniques used to isolate the eEDM signal. In particular, we detail the way experimental switches were used to suppress effects that can mimic the signal of interest. The methods used to search for systematic errors, and models explaining observed systematic errors, are also described. We briefly discuss possible improvements to the experiment.

Item Type:Article
Related URLs:
URLURL TypeDescription Paper
Baron, J.0000-0002-4027-3965
Hess, P. W.0000-0003-2985-4221
Hutzler, N. R.0000-0002-5203-3635
West, A. D.0000-0003-4098-0165
Alternate Title:Methods, Analysis, and the Treatment of Systematics for the Electron Electric Dipole Moment Limit in Thorium Monoxide
Additional Information:© 2017 IOP Publishing Ltd and Deutsche Physikalische Gesellschaft. Received 29 December 2016 Accepted 2 May 2017 Accepted Manuscript online 2 May 2017 Published 25 July 2017 This work was supported by the National Science Foundation.
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Issue or Number:7
Record Number:CaltechAUTHORS:20170830-140912781
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Official Citation:J Baron et al 2017 New J. Phys. 19 073029
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:80978
Deposited By: Ruth Sustaita
Deposited On:05 Sep 2017 17:56
Last Modified:12 Jul 2022 19:48

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