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A new cryogenic apparatus to search for the neutron electric dipole moment

Publication ,  Journal Article
Ahmed, MW; Alarcon, R; Aleksandrova, A; Baeßler, S; Barron-Palos, L; Bartoszek, LM; Beck, DH; Behzadipour, M; Berkutov, I; Bessuille, J; Dow, K ...
Published in: Journal of Instrumentation
January 1, 2019
Published version (DOI)

A cryogenic apparatus is described that enables a new experiment, nEDM@SNS, with a major improvement in sensitivity compared to the existing limit in the search for a neutron Electric Dipole Moment (EDM). This apparatus uses superfluid 4He to produce a high density of Ultra-Cold Neutrons (UCN) which are contained in a suitably coated pair of measurement cells. The experiment, to be operated at the Spallation Neutron Source at Oak Ridge National Laboratory, uses polarized 3He from an Atomic Beam Source injected into the superfluid 4He and transported to the measurement cells where it serves as a co-magnetometer. The superfluid 4He is also used as an insulating medium allowing significantly higher electric fields, compared to previous experiments, to be maintained across the measurement cells. These features provide an ultimate statistical uncertainty for the EDM of 2-3× 10-28 e-cm, with anticipated systematic uncertainties below this level.

Duke Scholars

Haiyan Gao
Author Haiyan Gao Physics
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Published In

Journal of Instrumentation

DOI

10.1088/1748-0221/14/11/P11017

EISSN

1748-0221

Publication Date

January 1, 2019

Volume

14

Issue

11

Related Subject Headings

  • Nuclear & Particles Physics
  • 51 Physical sciences
  • 40 Engineering
  • 09 Engineering
  • 02 Physical Sciences
 

Citation

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Ahmed, M. W., Alarcon, R., Aleksandrova, A., Baeßler, S., Barron-Palos, L., Bartoszek, L. M., … Young, A. R. (2019). A new cryogenic apparatus to search for the neutron electric dipole moment. Journal of Instrumentation, 14(11). https://doi.org/10.1088/1748-0221/14/11/P11017
Ahmed, M. W., R. Alarcon, A. Aleksandrova, S. Baeßler, L. Barron-Palos, L. M. Bartoszek, D. H. Beck, et al. “A new cryogenic apparatus to search for the neutron electric dipole moment.” Journal of Instrumentation 14, no. 11 (January 1, 2019). https://doi.org/10.1088/1748-0221/14/11/P11017.
Ahmed MW, Alarcon R, Aleksandrova A, Baeßler S, Barron-Palos L, Bartoszek LM, et al. A new cryogenic apparatus to search for the neutron electric dipole moment. Journal of Instrumentation. 2019 Jan 1;14(11).
Ahmed, M. W., et al. “A new cryogenic apparatus to search for the neutron electric dipole moment.” Journal of Instrumentation, vol. 14, no. 11, Jan. 2019. Scopus, doi:10.1088/1748-0221/14/11/P11017.
Ahmed MW, Alarcon R, Aleksandrova A, Baeßler S, Barron-Palos L, Bartoszek LM, Beck DH, Behzadipour M, Berkutov I, Bessuille J, Blatnik M, Broering M, Broussard LJ, Busch M, Carr R, Cianciolo V, Clayton SM, Cooper MD, Crawford C, Currie SA, Daurer C, Dipert R, Dow K, Dutta D, Efremenko Y, Erickson CB, Filippone BW, Fomin N, Gao H, Golub R, Gould CR, Greene G, Haase DG, Hasell D, Hawari AI, Hayden ME, Holley A, Holt RJ, Huffman PR, Ihloff E, Imam SK, Ito TM, Karcz M, Kelsey J, Kendellen DP, Kim YJ, Korobkina E, Korsch W, Lamoreaux SK, Leggett E, Leung KKH, Lipman A, Liu CY, Long J, MacDonald SWT, Makela M, Matlashov A, Maxwell JD, Mendenhall M, Meyer HO, Milner RG, Mueller PE, Nouri N, O’Shaughnessy CM, Osthelder C, Peng JC, Penttila SI, Phan NS, Plaster B, Ramsey JC, Rao TM, Redwine RP, Reid A, Saftah A, Seidel GM, Silvera I, Slutsky S, Smith E, Snow WM, Sondheim W, Sosothikul S, Stanislaus TDS, Sun X, Swank CM, Tang Z, Dinani RT, Tsentalovich E, Vidal C, Wei W, White CR, Williamson SE, Yang L, Yao W, Young AR. A new cryogenic apparatus to search for the neutron electric dipole moment. Journal of Instrumentation. 2019 Jan 1;14(11).
Journal cover image

Published In

Journal of Instrumentation

DOI

10.1088/1748-0221/14/11/P11017

EISSN

1748-0221

Publication Date

January 1, 2019

Volume

14

Issue

11

Related Subject Headings

  • Nuclear & Particles Physics
  • 51 Physical sciences
  • 40 Engineering
  • 09 Engineering
  • 02 Physical Sciences