The neutron electric dipole moment experiment at the Spallation Neutron Source

K.k.h. Leung; M. Ahmed; R. Alarcon; A. Aleksandrova; S. Baeßler; L. Barrón-palos; L. Bartoszek; D.H. Beck; M. Behzadipour; J. Bessuille; M.a. Blatnik; M. Broering; L.j. Broussard; M. Busch; R. Carr; P.-h. Chu; 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.l. Greene; D.g. Haase; D. Hasell; A.i. Hawari; M.e. Hayden; A.t. Holley; R.j. Holt; P.r. Huffman; E. Ihloff; T.m. Ito; J. Kelsey; Y.j. Kim; E. Korobkina; W. Korsch; S.k. Lamoreaux; E. Leggett; A. Lipman; C.-Y. Liu; J. Long; S.w.t. Macdonald; M. Makela; A. Matlashov; J. Maxwell; M. Mccrea; M. Mendenhall; H.o. Meyer; R. Milner; P. Mueller; N. Nouri; C.m. O'shaughnessy; C. Osthelder; J.-C. Peng; S. Penttila; N.s. Phan; B. Plaster; J. Ramsey; T. Rao; R.p. Redwine; A. Reid; A. Saftah; G.m. Seidel; I.f. 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; T. Jenke; S. Degenkolb; P. Geltenbort; M. Jentschel; V.v. Nesvizhevsky; D. Rebreyend; S. Roccia; T. Soldner; A. Stutz; O. Zimmer

doi:10.1051/epjconf/201921902005

The neutron electric dipole moment experiment at the Spallation Neutron Source

K.k.h. Leung, M. Ahmed, R. Alarcon, A. Aleksandrova, S. Baeßler, L. Barrón-palos, L. Bartoszek, D.H. Beck, M. Behzadipour, J. Bessuille, M.a. Blatnik, M. Broering, L.j. Broussard, M. Busch, R. Carr, P.-h. Chu, V. Cianciolo, S.m. Clayton, M.d. Cooper, C. CrawfordS.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.l. Greene, D.g. Haase, D. Hasell, A.i. Hawari, M.e. Hayden, A.t. Holley, R.j. Holt, P.r. Huffman, E. Ihloff, T.m. Ito, J. Kelsey, Y.j. Kim, E. Korobkina, W. Korsch, S.k. Lamoreaux, E. Leggett, A. Lipman, C.-Y. Liu, J. Long, S.w.t. Macdonald, M. Makela, A. Matlashov, J. Maxwell, M. Mccrea, M. Mendenhall, H.o. Meyer, R. Milner, P. Mueller, N. Nouri, C.m. O'shaughnessy, C. Osthelder, J.-C. Peng, S. Penttila, N.s. Phan, B. Plaster, J. Ramsey, T. Rao, R.p. Redwine, A. Reid, A. Saftah, G.m. Seidel, I.f. 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, T. Jenke (Editor), S. Degenkolb (Editor), P. Geltenbort (Editor), M. Jentschel (Editor), V.v. Nesvizhevsky (Editor), D. Rebreyend (Editor), S. Roccia (Editor), T. Soldner (Editor), A. Stutz (Editor), O. Zimmer (Editor)

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Abstract

Novel experimental techniques are required to make the next big leap in neutron electric dipole moment experimental sensitivity, both in terms of statistics and systematic error control. The nEDM experiment at the Spallation Neutron Source (nEDM@SNS) will implement the scheme of Golub & Lamoreaux [Phys. Rep., 237, 1 (1994)]. The unique properties of combining polarized ultracold neutrons, polarized 3He, and superfluid 4He will be exploited to provide a sensitivity to ∼ 10−28 e · cm. Our cryogenic apparatus will deploy two small (3 L) measurement cells with a high density of ultracold neutrons produced and spin analyzed in situ. The electric field strength, precession time, magnetic shielding, and detected UCN number will all be enhanced compared to previous room temperature Ramsey measurements. Our 3He co-magnetometer offers unique control of systematic effects, in particular the Bloch-Siegert induced false EDM. Furthermore, there will be two distinct measurement modes: free precession and dressed spin. This will provide an important self-check of our results. Following five years of “critical component demonstration,” our collaboration transitioned to a “large scale integration” phase in 2018. An overview of our measurement techniques, experimental design, and brief updates are described in these proceedings.

Original language	English (US)
Pages (from-to)	02005
Journal	EPJ Web of Conferences
Volume	219
DOIs	https://doi.org/10.1051/epjconf/201921902005
State	Published - Jan 1 2019

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Leung, K. K. H., Ahmed, M., Alarcon, R., Aleksandrova, A., Baeßler, S., Barrón-palos, L., Bartoszek, L., Beck, D. H., Behzadipour, M., Bessuille, J., Blatnik, M. A., Broering, M., Broussard, L. J., Busch, M., Carr, R., Chu, P., Cianciolo, V., Clayton, S. M., Cooper, M. D., ... Zimmer, O. (Ed.) (2019). The neutron electric dipole moment experiment at the Spallation Neutron Source. EPJ Web of Conferences, 219, 02005. https://doi.org/10.1051/epjconf/201921902005

Leung, KKH, Ahmed, M, Alarcon, R, Aleksandrova, A, Baeßler, S, Barrón-palos, L, Bartoszek, L, Beck, DH, Behzadipour, M, Bessuille, J, Blatnik, MA, Broering, M, Broussard, LJ, Busch, M, Carr, R, Chu, P, 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, GL, Haase, DG, Hasell, D, Hawari, AI, Hayden, ME, Holley, AT, Holt, RJ, Huffman, PR, Ihloff, E, Ito, TM, Kelsey, J, Kim, YJ, Korobkina, E, Korsch, W, Lamoreaux, SK, Leggett, E, Lipman, A, Liu, C-Y , Long, J, Macdonald, SWT, Makela, M, Matlashov, A, Maxwell, J, Mccrea, M, Mendenhall, M, Meyer, HO, Milner, R, Mueller, P, Nouri, N, O'shaughnessy, CM, Osthelder, C, Peng, J-C, Penttila, S, Phan, NS, Plaster, B, Ramsey, J, Rao, T, Redwine, RP, Reid, A, Saftah, A, Seidel, GM, Silvera, IF, 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, Jenke, T (ed.), Degenkolb, S (ed.), Geltenbort, P (ed.), Jentschel, M (ed.), Nesvizhevsky, VV (ed.), Rebreyend, D (ed.), Roccia, S (ed.), Soldner, T (ed.), Stutz, A (ed.) & Zimmer, O (ed.) 2019, 'The neutron electric dipole moment experiment at the Spallation Neutron Source', EPJ Web of Conferences, vol. 219, pp. 02005. https://doi.org/10.1051/epjconf/201921902005

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title = "The neutron electric dipole moment experiment at the Spallation Neutron Source",

abstract = "Novel experimental techniques are required to make the next big leap in neutron electric dipole moment experimental sensitivity, both in terms of statistics and systematic error control. The nEDM experiment at the Spallation Neutron Source (nEDM@SNS) will implement the scheme of Golub & Lamoreaux [Phys. Rep., 237, 1 (1994)]. The unique properties of combining polarized ultracold neutrons, polarized 3He, and superfluid 4He will be exploited to provide a sensitivity to ∼ 10−28 e · cm. Our cryogenic apparatus will deploy two small (3 L) measurement cells with a high density of ultracold neutrons produced and spin analyzed in situ. The electric field strength, precession time, magnetic shielding, and detected UCN number will all be enhanced compared to previous room temperature Ramsey measurements. Our 3He co-magnetometer offers unique control of systematic effects, in particular the Bloch-Siegert induced false EDM. Furthermore, there will be two distinct measurement modes: free precession and dressed spin. This will provide an important self-check of our results. Following five years of “critical component demonstration,” our collaboration transitioned to a “large scale integration” phase in 2018. An overview of our measurement techniques, experimental design, and brief updates are described in these proceedings.",

author = "K.k.h. Leung and M. Ahmed and R. Alarcon and A. Aleksandrova and S. Bae{\ss}ler and L. Barr{\'o}n-palos and L. Bartoszek and D.H. Beck and M. Behzadipour and J. Bessuille and M.a. Blatnik and M. Broering and L.j. Broussard and M. Busch and R. Carr and P.-h. Chu and V. Cianciolo and S.m. Clayton and M.d. Cooper and C. Crawford and S.a. Currie and C. Daurer and R. Dipert and K. Dow and D. Dutta and Y. Efremenko and C.b. Erickson and B.w. Filippone and N. Fomin and H. Gao and R. Golub and C.r. Gould and G.l. Greene and D.g. Haase and D. Hasell and A.i. Hawari and M.e. Hayden and A.t. Holley and R.j. Holt and P.r. Huffman and E. Ihloff and T.m. Ito and J. Kelsey and Y.j. Kim and E. Korobkina and W. Korsch and S.k. Lamoreaux and E. Leggett and A. Lipman and C.-Y. Liu and J. Long and S.w.t. Macdonald and M. Makela and A. Matlashov and J. Maxwell and M. Mccrea and M. Mendenhall and H.o. Meyer and R. Milner and P. Mueller and N. Nouri and C.m. O'shaughnessy and C. Osthelder and J.-C. Peng and S. Penttila and N.s. Phan and B. Plaster and J. Ramsey and T. Rao and R.p. Redwine and A. Reid and A. Saftah and G.m. Seidel and I.f. Silvera and S. Slutsky and E. Smith and W.m. Snow and W. Sondheim and S. Sosothikul and T.d.s. Stanislaus and X. Sun and C.m. Swank and Z. Tang and Dinani, {R. Tavakoli} and E. Tsentalovich and C. Vidal and W. Wei and C.r. White and S.e. Williamson and L. Yang and W. Yao and A.r. Young and T. Jenke and S. Degenkolb and P. Geltenbort and M. Jentschel and V.v. Nesvizhevsky and D. Rebreyend and S. Roccia and T. Soldner and A. Stutz and O. Zimmer",

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doi = "10.1051/epjconf/201921902005",

language = "English (US)",

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pages = "02005",

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T1 - The neutron electric dipole moment experiment at the Spallation Neutron Source

AU - Leung, K.k.h.

AU - Ahmed, M.

AU - Alarcon, R.

AU - Aleksandrova, A.

AU - Baeßler, S.

AU - Barrón-palos, L.

AU - Bartoszek, L.

AU - Beck, D.H.

AU - Behzadipour, M.

AU - Bessuille, J.

AU - Blatnik, M.a.

AU - Broering, M.

AU - Broussard, L.j.

AU - Busch, M.

AU - Carr, R.

AU - Chu, P.-h.

AU - Cianciolo, V.

AU - Clayton, S.m.

AU - Cooper, M.d.

AU - Crawford, C.

AU - Currie, S.a.

AU - Daurer, C.

AU - Dipert, R.

AU - Dow, K.

AU - Dutta, D.

AU - Efremenko, Y.

AU - Erickson, C.b.

AU - Filippone, B.w.

AU - Fomin, N.

AU - Gao, H.

AU - Golub, R.

AU - Gould, C.r.

AU - Greene, G.l.

AU - Haase, D.g.

AU - Hasell, D.

AU - Hawari, A.i.

AU - Hayden, M.e.

AU - Holley, A.t.

AU - Holt, R.j.

AU - Huffman, P.r.

AU - Ihloff, E.

AU - Ito, T.m.

AU - Kelsey, J.

AU - Kim, Y.j.

AU - Korobkina, E.

AU - Korsch, W.

AU - Lamoreaux, S.k.

AU - Leggett, E.

AU - Lipman, A.

AU - Liu, C.-Y.

AU - Long, J.

AU - Macdonald, S.w.t.

AU - Makela, M.

AU - Matlashov, A.

AU - Maxwell, J.

AU - Mccrea, M.

AU - Mendenhall, M.

AU - Meyer, H.o.

AU - Milner, R.

AU - Mueller, P.

AU - Nouri, N.

AU - O'shaughnessy, C.m.

AU - Osthelder, C.

AU - Peng, J.-C.

AU - Penttila, S.

AU - Phan, N.s.

AU - Plaster, B.

AU - Ramsey, J.

AU - Rao, T.

AU - Redwine, R.p.

AU - Reid, A.

AU - Saftah, A.

AU - Seidel, G.m.

AU - Silvera, I.f.

AU - Slutsky, S.

AU - Smith, E.

AU - Snow, W.m.

AU - Sondheim, W.

AU - Sosothikul, S.

AU - Stanislaus, T.d.s.

AU - Sun, X.

AU - Swank, C.m.

AU - Tang, Z.

AU - Dinani, R. Tavakoli

AU - Tsentalovich, E.

AU - Vidal, C.

AU - Wei, W.

AU - White, C.r.

AU - Williamson, S.e.

AU - Yang, L.

AU - Yao, W.

AU - Young, A.r.

A2 - Jenke, T.

A2 - Degenkolb, S.

A2 - Geltenbort, P.

A2 - Jentschel, M.

A2 - Nesvizhevsky, V.v.

A2 - Rebreyend, D.

A2 - Roccia, S.

A2 - Soldner, T.

A2 - Stutz, A.

A2 - Zimmer, O.

PY - 2019/1/1

Y1 - 2019/1/1

N2 - Novel experimental techniques are required to make the next big leap in neutron electric dipole moment experimental sensitivity, both in terms of statistics and systematic error control. The nEDM experiment at the Spallation Neutron Source (nEDM@SNS) will implement the scheme of Golub & Lamoreaux [Phys. Rep., 237, 1 (1994)]. The unique properties of combining polarized ultracold neutrons, polarized 3He, and superfluid 4He will be exploited to provide a sensitivity to ∼ 10−28 e · cm. Our cryogenic apparatus will deploy two small (3 L) measurement cells with a high density of ultracold neutrons produced and spin analyzed in situ. The electric field strength, precession time, magnetic shielding, and detected UCN number will all be enhanced compared to previous room temperature Ramsey measurements. Our 3He co-magnetometer offers unique control of systematic effects, in particular the Bloch-Siegert induced false EDM. Furthermore, there will be two distinct measurement modes: free precession and dressed spin. This will provide an important self-check of our results. Following five years of “critical component demonstration,” our collaboration transitioned to a “large scale integration” phase in 2018. An overview of our measurement techniques, experimental design, and brief updates are described in these proceedings.

AB - Novel experimental techniques are required to make the next big leap in neutron electric dipole moment experimental sensitivity, both in terms of statistics and systematic error control. The nEDM experiment at the Spallation Neutron Source (nEDM@SNS) will implement the scheme of Golub & Lamoreaux [Phys. Rep., 237, 1 (1994)]. The unique properties of combining polarized ultracold neutrons, polarized 3He, and superfluid 4He will be exploited to provide a sensitivity to ∼ 10−28 e · cm. Our cryogenic apparatus will deploy two small (3 L) measurement cells with a high density of ultracold neutrons produced and spin analyzed in situ. The electric field strength, precession time, magnetic shielding, and detected UCN number will all be enhanced compared to previous room temperature Ramsey measurements. Our 3He co-magnetometer offers unique control of systematic effects, in particular the Bloch-Siegert induced false EDM. Furthermore, there will be two distinct measurement modes: free precession and dressed spin. This will provide an important self-check of our results. Following five years of “critical component demonstration,” our collaboration transitioned to a “large scale integration” phase in 2018. An overview of our measurement techniques, experimental design, and brief updates are described in these proceedings.

U2 - 10.1051/epjconf/201921902005

DO - 10.1051/epjconf/201921902005

M3 - Article

SN - 2101-6275

VL - 219

SP - 02005

JO - EPJ Web of Conferences

JF - EPJ Web of Conferences

ER -

The neutron electric dipole moment experiment at the Spallation Neutron Source

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