A New Cryogenic Apparatus to Search for the Neutron Electric Dipole Moment
- Ahmed, M. W.
- Alarcon, R.
- Aleksandrova, A.
- Baessler, S.
- Barron-Palos, L.
- Bartoszek, L. M.
- Beck, D. H.
- Behzadipour, M.
- Berkutov, I.
- Bessuille, J.
- Blatnik, M.
- Broering, M.
- Broussard, L. J.
- Busch, M.
- Carr, R.
- Cianciolo, V.
- Clayton, S. M.
- Cooper, M. D.
- Crawford, C.
- Currie, S. A.
- Daurer, C.
- Dipert, R.
- Dow, K.
- Dutta, D.
- Efremenko, Y.
- Erickson, C. B.
- Filippone, B. W.
- Fomin, N.
- Gao, H.
- Golub, R.
- Gould, C. R.
- Greene, G.
- Haase, D. G.
- Hasell, D.
- Hawari, A. I.
- Hayden, M.E.
- Holley, A.
- Holt, R. J.
- Huffman, P. R.
- Ihloff, E.
- Imam, S. K.
- Ito, T. M.
- Karcz, M.
- Kelsey, J.
- Kendellen, D. P.
- Kim, Y. J.
- Korobkina, E.
- Korsch, W.
- Lamoreaux, S. K.
- Leggett, J.
- Leung, K. K. H.
- Lipman, A.
- Liu, C. Y.
- Long, J.
- MacDonald, S. W. T.
- Makela, M.
- Matlashov, A.
- Maxwell, J. D.
- Mendenhall, M.
- Meyer, H. O.
- Milner, R. G.
- Mueller, P. E.
- Nouri, N.
- O'Shaughnessy, C. M.
- Osthelder, C.
- Peng, J. C.
- Penttila, S. I.
- Phan, N. S.
- Plaster, B.
- Ramsey, J. C.
- Rao, T. M.
- Redwine, R. P.
- Reid, A.
- Saftah, A.
- Seidel, G. M.
- Silvera, I.
- Slutsky, S.
- Smith, E.
- Snow, W. M.
- Sondheim, W.
- Sosothikul, S.
- Stanislaus, T. D. S.
- Sun, X.
- Swank, C. M.
- Tang, Z.
- Dinani, R. Tavakoli
- Tsentalovich, E.
- Vidal, C.
- Wei, W.
- White, C. R.
- Williamson, S. E.
- Yang, L.
- Yao, W.
- Young, A. R.
DOIAbstract
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 $^4$He 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 $^3$He from an Atomic Beam Source injected into the superfluid $^4$He and transported to the measurement cells where it serves as a co-magnetometer. The superfluid $^4$He is also used as an insulating medium allowing significantly higher electric fields, compared to prev...
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