The observation of vibrating pear-shapes in radon nuclei

P. A. Butler; L. P. Gaffney; P. Spagnoletti; J. Konki; M. Scheck; J. F. Smith; K. Abrahams; M. Bowry; J. Cederkäll; T. Chupp; G. de Angelis; H. De Witte; P. E. Garrett; A. Goldkuhle; C. Henrich; A. Illana; K. Johnston; D. T. Joss; J. M. Keatings; N. A. Kelly; M. Komorowska; T. Kröll; M. Lozano; B. S. Nara Singh; D. O’Donnell; J. Ojala; R. D. Page; L. G. Pedersen; C. Raison; P. Reiter; J. A. Rodriguez; D. Rosiak; S. Rothe; T. M. Shneidman; B. Siebeck; M. Seidlitz; J. Sinclair; M. Stryjczyk; P. Van Duppen; S. Vinals; V. Virtanen; N. Warr; K. Wrzosek-Lipska; M. Zielinska

doi:10.1038/s41467-019-10494-5

The observation of vibrating pear-shapes in radon nuclei

P. A. Butler, L. P. Gaffney, P. Spagnoletti, J. Konki, M. Scheck, J. F. Smith, K. Abrahams, M. Bowry, J. Cederkäll, T. Chupp, G. de Angelis, H. De Witte, P. E. Garrett, A. Goldkuhle, C. Henrich, A. Illana, K. Johnston, D. T. Joss, J. M. Keatings, N. A. KellyM. Komorowska, T. Kröll, M. Lozano, B. S. Nara Singh, D. O’Donnell, J. Ojala, R. D. Page, L. G. Pedersen, C. Raison, P. Reiter, J. A. Rodriguez, D. Rosiak, S. Rothe, T. M. Shneidman, B. Siebeck, M. Seidlitz, J. Sinclair, M. Stryjczyk, P. Van Duppen, S. Vinals, V. Virtanen, N. Warr, K. Wrzosek-Lipska, M. Zielinska

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Abstract

There is a large body of evidence that atomic nuclei can undergo octupole distortion and assume the shape of a pear. This phenomenon is important for measurements of electric-dipole moments of atoms, which would indicate CP violation and hence probe physics beyond the Standard Model of particle physics. Isotopes of both radon and radium have been identified as candidates for such measurements. Here, we observed the low-lying quantum states in ²²⁴Rn and ²²⁶Rn by accelerating beams of these radioactive nuclei. We show that radon isotopes undergo octupole vibrations but do not possess static pear-shapes in their ground states. We conclude that radon atoms provide less favourable conditions for the enhancement of a measurable atomic electric-dipole moment.

Original language	English
Article number	2473
Journal	Nature Communications
Volume	10
Issue number	1
DOIs	https://doi.org/10.1038/s41467-019-10494-5
Publication status	Published - 2019 Dec 1

Subject classification (UKÄ)

Accelerator Physics and Instrumentation

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Butler, P. A., Gaffney, L. P., Spagnoletti, P., Konki, J., Scheck, M., Smith, J. F., Abrahams, K., Bowry, M., Cederkäll, J., Chupp, T., de Angelis, G., De Witte, H., Garrett, P. E., Goldkuhle, A., Henrich, C., Illana, A., Johnston, K., Joss, D. T., Keatings, J. M., ... Zielinska, M. (2019). The observation of vibrating pear-shapes in radon nuclei. Nature Communications, 10(1), Article 2473. https://doi.org/10.1038/s41467-019-10494-5

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title = "The observation of vibrating pear-shapes in radon nuclei",

abstract = "There is a large body of evidence that atomic nuclei can undergo octupole distortion and assume the shape of a pear. This phenomenon is important for measurements of electric-dipole moments of atoms, which would indicate CP violation and hence probe physics beyond the Standard Model of particle physics. Isotopes of both radon and radium have been identified as candidates for such measurements. Here, we observed the low-lying quantum states in 224Rn and 226Rn by accelerating beams of these radioactive nuclei. We show that radon isotopes undergo octupole vibrations but do not possess static pear-shapes in their ground states. We conclude that radon atoms provide less favourable conditions for the enhancement of a measurable atomic electric-dipole moment.",

author = "Butler, {P. A.} and Gaffney, {L. P.} and P. Spagnoletti and J. Konki and M. Scheck and Smith, {J. F.} and K. Abrahams and M. Bowry and J. Cederk{\"a}ll and T. Chupp and {de Angelis}, G. and {De Witte}, H. and Garrett, {P. E.} and A. Goldkuhle and C. Henrich and A. Illana and K. Johnston and Joss, {D. T.} and Keatings, {J. M.} and Kelly, {N. A.} and M. Komorowska and T. Kr{\"o}ll and M. Lozano and {Nara Singh}, {B. S.} and D. O{\textquoteright}Donnell and J. Ojala and Page, {R. D.} and Pedersen, {L. G.} and C. Raison and P. Reiter and Rodriguez, {J. A.} and D. Rosiak and S. Rothe and Shneidman, {T. M.} and B. Siebeck and M. Seidlitz and J. Sinclair and M. Stryjczyk and {Van Duppen}, P. and S. Vinals and V. Virtanen and N. Warr and K. Wrzosek-Lipska and M. Zielinska",

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Butler, PA, Gaffney, LP, Spagnoletti, P, Konki, J, Scheck, M, Smith, JF, Abrahams, K, Bowry, M, Cederkäll, J, Chupp, T, de Angelis, G, De Witte, H, Garrett, PE, Goldkuhle, A, Henrich, C, Illana, A, Johnston, K, Joss, DT, Keatings, JM, Kelly, NA, Komorowska, M, Kröll, T, Lozano, M, Nara Singh, BS, O’Donnell, D, Ojala, J, Page, RD, Pedersen, LG, Raison, C, Reiter, P, Rodriguez, JA, Rosiak, D, Rothe, S, Shneidman, TM, Siebeck, B, Seidlitz, M, Sinclair, J, Stryjczyk, M, Van Duppen, P, Vinals, S, Virtanen, V, Warr, N, Wrzosek-Lipska, K & Zielinska, M 2019, 'The observation of vibrating pear-shapes in radon nuclei', Nature Communications, vol. 10, no. 1, 2473. https://doi.org/10.1038/s41467-019-10494-5

TY - JOUR

T1 - The observation of vibrating pear-shapes in radon nuclei

AU - Butler, P. A.

AU - Gaffney, L. P.

AU - Spagnoletti, P.

AU - Konki, J.

AU - Scheck, M.

AU - Smith, J. F.

AU - Abrahams, K.

AU - Bowry, M.

AU - Cederkäll, J.

AU - Chupp, T.

AU - de Angelis, G.

AU - De Witte, H.

AU - Garrett, P. E.

AU - Goldkuhle, A.

AU - Henrich, C.

AU - Illana, A.

AU - Johnston, K.

AU - Joss, D. T.

AU - Keatings, J. M.

AU - Kelly, N. A.

AU - Komorowska, M.

AU - Kröll, T.

AU - Lozano, M.

AU - Nara Singh, B. S.

AU - O’Donnell, D.

AU - Ojala, J.

AU - Page, R. D.

AU - Pedersen, L. G.

AU - Raison, C.

AU - Reiter, P.

AU - Rodriguez, J. A.

AU - Rosiak, D.

AU - Rothe, S.

AU - Shneidman, T. M.

AU - Siebeck, B.

AU - Seidlitz, M.

AU - Sinclair, J.

AU - Stryjczyk, M.

AU - Van Duppen, P.

AU - Vinals, S.

AU - Virtanen, V.

AU - Warr, N.

AU - Wrzosek-Lipska, K.

AU - Zielinska, M.

PY - 2019/12/1

Y1 - 2019/12/1

N2 - There is a large body of evidence that atomic nuclei can undergo octupole distortion and assume the shape of a pear. This phenomenon is important for measurements of electric-dipole moments of atoms, which would indicate CP violation and hence probe physics beyond the Standard Model of particle physics. Isotopes of both radon and radium have been identified as candidates for such measurements. Here, we observed the low-lying quantum states in 224Rn and 226Rn by accelerating beams of these radioactive nuclei. We show that radon isotopes undergo octupole vibrations but do not possess static pear-shapes in their ground states. We conclude that radon atoms provide less favourable conditions for the enhancement of a measurable atomic electric-dipole moment.

AB - There is a large body of evidence that atomic nuclei can undergo octupole distortion and assume the shape of a pear. This phenomenon is important for measurements of electric-dipole moments of atoms, which would indicate CP violation and hence probe physics beyond the Standard Model of particle physics. Isotopes of both radon and radium have been identified as candidates for such measurements. Here, we observed the low-lying quantum states in 224Rn and 226Rn by accelerating beams of these radioactive nuclei. We show that radon isotopes undergo octupole vibrations but do not possess static pear-shapes in their ground states. We conclude that radon atoms provide less favourable conditions for the enhancement of a measurable atomic electric-dipole moment.

UR - https://doi.org/10.1038/s41467-020-17309-y

UR - http://10.1038/s41467-020-19081-5

U2 - 10.1038/s41467-019-10494-5

DO - 10.1038/s41467-019-10494-5

M3 - Article

C2 - 31171788

AN - SCOPUS:85066953161

SN - 2041-1723

VL - 10

JO - Nature Communications

JF - Nature Communications

IS - 1

M1 - 2473

ER -

The observation of vibrating pear-shapes in radon nuclei

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