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

  • M. W. Ahmed
  • , R. Alarcon
  • , A. Aleksandrova
  • , S. Baeßler
  • , L. Barron-Palos
  • , L. M. Bartoszek
  • , D. H. Beck
  • , M. Behzadipour
  • , I. Berkutov
  • , J. Bessuille
  • , M. Blatnik
  • , M. Broering
  • , L. J. Broussard
  • , M. Busch
  • , R. Carr
  • , V. Cianciolo
  • , S. M. Clayton
  • , M. D. Cooper
  • , C. Crawford
  • , S. A. Currie
  • C. Daurer, R. Dipert, K. Dow, D. Dutta, Y. Efremenko, C. B. Erickson, B. W. Filippone, N. Fomin, H. Gao, R. Golub, C. R. Gould, G. Greene, D. G. Haase, D. Hasell, A. I. Hawari, M. E. Hayden, A. Holley, R. J. Holt, P. R. Huffman, E. Ihloff, S. K. Imam, T. M. Ito, M. Karcz, J. Kelsey, D. P. Kendellen, Y. J. Kim, E. Korobkina, W. Korsch, S. K. Lamoreaux, E. Leggett, K. K.H. Leung, A. Lipman, C. Y. Liu, J. Long, S. W.T. MacDonald, M. Makela, A. Matlashov, J. D. Maxwell, M. Mendenhall, H. O. Meyer, R. G. Milner, P. E. Mueller, N. Nouri, C. M. O'Shaughnessy, C. Osthelder, J. C. Peng, S. I. Penttila, N. S. Phan, B. Plaster, J. C. Ramsey, T. M. Rao, R. P. Redwine, A. Reid, A. Saftah, G. M. Seidel, I. Silvera, S. Slutsky, E. Smith, W. M. Snow, W. Sondheim, S. Sosothikul, T. D.S. Stanislaus, X. Sun, C. M. Swank, Z. Tang, R. Tavakoli Dinani, E. Tsentalovich, C. Vidal, W. Wei, C. R. White, S. E. Williamson, L. Yang, W. Yao, A. R. Young

Producción científica: Articlerevisión exhaustiva

46 Citas (Scopus)

Resumen

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.

Idioma originalEnglish
Número de artículoP11017
PublicaciónJournal of Instrumentation
Volumen14
N.º11
DOI
EstadoPublished - 2019

Nota bibliográfica

Publisher Copyright:
© 2019 IOP Publishing Ltd and Sissa Medialab.

Financiación

FinanciadoresNúmero del financiador
National Science Foundation Arctic Social Science Program1506416, 1440011, 1506459, 1205977, 1306547, 1812340

    ASJC Scopus subject areas

    • Mathematical Physics
    • Instrumentation

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