Order of magnitude smaller limit on the electric dipole moment of the electron

J. Baron; W. C. Campbell; D. DeMille; J. M. Doyle; G. Gabrielse; Y. V. Gurevich; P. W. Hess; N. R. Hutzler; E. Kirilov; I. Kozyryev; B. R. O'Leary; C. D. Panda; M. F. Parsons; E. S. Petrik; B. Spaun; A. C. Vutha; A. D. West

doi:10.1126/science.1248213

Order of magnitude smaller limit on the electric dipole moment of the electron

J. Baron, W. C. Campbell, D. DeMille^*, J. M. Doyle, G. Gabrielse, Y. V. Gurevich, P. W. Hess, N. R. Hutzler, E. Kirilov, I. Kozyryev, B. R. O'Leary, C. D. Panda, M. F. Parsons, E. S. Petrik, B. Spaun, A. C. Vutha, A. D. West

^*Corresponding author for this work

Physics and Astronomy

Research output: Contribution to journal › Article › peer-review

770 Scopus citations

Abstract

The Standard Model of particle physics is known to be incomplete. Extensions to the Standard Model, such as weak-scale supersymmetry, posit the existence of new particles and interactions that are asymmetric under time reversal (T) and nearly always predict a small yet potentially measurable electron electric dipole moment (EDM), d_e, in the range of 10 ^-27 to 10^-30 e·cm. The EDM is an asymmetric charge distribution along the electron spin (S^→) that is also asymmetric under T. Using the polar molecule thorium monoxide, we measured d_e = (-2.1 ± 3.7_stat ± 2.5_syst) x 10^-29 e·cm. This corresponds to an upper limit of |d _e| < 8.7 x 10^-29 e·cm with 90%confidence, an order of magnitude improvement in sensitivity relative to the previous best limit. Our result constrains T-violating physics at the TeV energy scale.

Original language	English (US)
Pages (from-to)	269-272
Number of pages	4
Journal	Science
Volume	343
Issue number	6168
DOIs	https://doi.org/10.1126/science.1248213
State	Published - 2014

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Baron, J., Campbell, W. C., DeMille, D., Doyle, J. M., Gabrielse, G., Gurevich, Y. V., Hess, P. W., Hutzler, N. R., Kirilov, E., Kozyryev, I., O'Leary, B. R., Panda, C. D., Parsons, M. F., Petrik, E. S., Spaun, B., Vutha, A. C., & West, A. D. (2014). Order of magnitude smaller limit on the electric dipole moment of the electron. Science, 343(6168), 269-272. https://doi.org/10.1126/science.1248213

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title = "Order of magnitude smaller limit on the electric dipole moment of the electron",

abstract = "The Standard Model of particle physics is known to be incomplete. Extensions to the Standard Model, such as weak-scale supersymmetry, posit the existence of new particles and interactions that are asymmetric under time reversal (T) and nearly always predict a small yet potentially measurable electron electric dipole moment (EDM), de, in the range of 10 -27 to 10-30 e·cm. The EDM is an asymmetric charge distribution along the electron spin (S→) that is also asymmetric under T. Using the polar molecule thorium monoxide, we measured de = (-2.1 ± 3.7stat ± 2.5syst) x 10-29 e·cm. This corresponds to an upper limit of |d e| < 8.7 x 10-29 e·cm with 90%confidence, an order of magnitude improvement in sensitivity relative to the previous best limit. Our result constrains T-violating physics at the TeV energy scale.",

author = "J. Baron and Campbell, {W. C.} and D. DeMille and Doyle, {J. M.} and G. Gabrielse and Gurevich, {Y. V.} and Hess, {P. W.} and Hutzler, {N. R.} and E. Kirilov and I. Kozyryev and O'Leary, {B. R.} and Panda, {C. D.} and Parsons, {M. F.} and Petrik, {E. S.} and B. Spaun and Vutha, {A. C.} and West, {A. D.}",

year = "2014",

doi = "10.1126/science.1248213",

language = "English (US)",

volume = "343",

pages = "269--272",

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Baron, J, Campbell, WC, DeMille, D, Doyle, JM, Gabrielse, G, Gurevich, YV, Hess, PW, Hutzler, NR, Kirilov, E, Kozyryev, I, O'Leary, BR, Panda, CD, Parsons, MF, Petrik, ES, Spaun, B, Vutha, AC & West, AD 2014, 'Order of magnitude smaller limit on the electric dipole moment of the electron', Science, vol. 343, no. 6168, pp. 269-272. https://doi.org/10.1126/science.1248213

TY - JOUR

T1 - Order of magnitude smaller limit on the electric dipole moment of the electron

AU - Baron, J.

AU - Campbell, W. C.

AU - DeMille, D.

AU - Doyle, J. M.

AU - Gabrielse, G.

AU - Gurevich, Y. V.

AU - Hess, P. W.

AU - Hutzler, N. R.

AU - Kirilov, E.

AU - Kozyryev, I.

AU - O'Leary, B. R.

AU - Panda, C. D.

AU - Parsons, M. F.

AU - Petrik, E. S.

AU - Spaun, B.

AU - Vutha, A. C.

AU - West, A. D.

PY - 2014

Y1 - 2014

N2 - The Standard Model of particle physics is known to be incomplete. Extensions to the Standard Model, such as weak-scale supersymmetry, posit the existence of new particles and interactions that are asymmetric under time reversal (T) and nearly always predict a small yet potentially measurable electron electric dipole moment (EDM), de, in the range of 10 -27 to 10-30 e·cm. The EDM is an asymmetric charge distribution along the electron spin (S→) that is also asymmetric under T. Using the polar molecule thorium monoxide, we measured de = (-2.1 ± 3.7stat ± 2.5syst) x 10-29 e·cm. This corresponds to an upper limit of |d e| < 8.7 x 10-29 e·cm with 90%confidence, an order of magnitude improvement in sensitivity relative to the previous best limit. Our result constrains T-violating physics at the TeV energy scale.

AB - The Standard Model of particle physics is known to be incomplete. Extensions to the Standard Model, such as weak-scale supersymmetry, posit the existence of new particles and interactions that are asymmetric under time reversal (T) and nearly always predict a small yet potentially measurable electron electric dipole moment (EDM), de, in the range of 10 -27 to 10-30 e·cm. The EDM is an asymmetric charge distribution along the electron spin (S→) that is also asymmetric under T. Using the polar molecule thorium monoxide, we measured de = (-2.1 ± 3.7stat ± 2.5syst) x 10-29 e·cm. This corresponds to an upper limit of |d e| < 8.7 x 10-29 e·cm with 90%confidence, an order of magnitude improvement in sensitivity relative to the previous best limit. Our result constrains T-violating physics at the TeV energy scale.

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SN - 0036-8075

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Order of magnitude smaller limit on the electric dipole moment of the electron

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