Do nuclei go pear-shaped? Coulomb excitation of Rn-220 and Ra-224 at REX-ISOLDE (CERN)

M. Scheck; L. P. Gaffney; P. A. Butler; A. B. Hayes; F. Wenander; M. Albers; B. Bastin; C. Bauer; A. Blazhev; S. Boenig; N. Bree; J. Cederkall; T. Chupp; D. Cline; T. E. Cocolios; T. Davinson; H. De Witte; J. Diriken; T. Grahn; A. Herzan; M. Huyse; D. G. Jenkins; D. T. Joss; N. Kesteloot; J. Konki; M. Kowalczyk; Th. Kroell; E. Kwan; R. Lutter; K. Moschner; P. Napiorkowski; J. Pakarinen; M. Pfeiffer; D. Radeck; P. Reiter; K. Reynders; S. V. Rigby; L. M. Robledo; M. Rudigier; S. Sambi; M. Seidlitz; B. Siebeck; T. Stora; P. Thoele; P. Van Duppen; M. J. Vermeulen; M. von Schmid; D. Voulot; N. Warr; K. Wimmer; K. Wrzosek-Lipska; C. Y. Wu; M. Zielinska

doi:10.1051/epjconf/20159301038

Do nuclei go pear-shaped? Coulomb excitation of Rn-220 and Ra-224 at REX-ISOLDE (CERN)

M. Scheck, L. P. Gaffney, P. A. Butler, A. B. Hayes, F. Wenander, M. Albers, B. Bastin, C. Bauer, A. Blazhev, S. Boenig, N. Bree, J. Cederkall, T. Chupp, D. Cline, T. E. Cocolios, T. Davinson, H. De Witte, J. Diriken, T. Grahn, A. HerzanM. Huyse, D. G. Jenkins, D. T. Joss, N. Kesteloot, J. Konki, M. Kowalczyk, Th. Kroell, E. Kwan, R. Lutter, K. Moschner, P. Napiorkowski, J. Pakarinen, M. Pfeiffer, D. Radeck, P. Reiter, K. Reynders, S. V. Rigby, L. M. Robledo, M. Rudigier, S. Sambi, M. Seidlitz, B. Siebeck, T. Stora, P. Thoele, P. Van Duppen, M. J. Vermeulen, M. von Schmid, D. Voulot, N. Warr, K. Wimmer, K. Wrzosek-Lipska, C. Y. Wu, M. Zielinska

School of Computing, Engineering and Physical Sciences

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

The IS475 collaboration conducted Coulomb-excitation experiments with post-accelerated radioactive Rn-220 and Ra-224 beams at the REX-ISOLDE facility. The beam particles (E-beam: 2.83 MeV/u) were Coulomb excited using Ni-60, Cd-14, and Sn-120 scattering targets. De-excitation gamma-rays were detected employing the Miniball array and scattered particles were detected in a silicon detector. Exploiting the Coulomb-excitation code GOSIA for each nucleus several matrix elements could be obtained from the measured gamma-ray yields. The extracted < 3 parallel to E3 parallel to 0(+)> matrix element allows for the conclusion that, while Rn-220 represents an octupole vibrational system, Ra-224 has already substantial octupole correlations in its ground state. This finding has i(m)plications for the search of CP-violating Schiff moments in the atomic systems of the adjacent odd-mass nuclei.

Original language	English
Title of host publication	CGS15 - CAPTURE GAMMA-RAY SPECTROSCOPY AND RELATED TOPICS
Publisher	EDP Sciences
Volume	93
ISBN (Print)	978-2-7598-1794-8
DOIs	https://doi.org/10.1051/epjconf/20159301038
Publication status	Published - 2015

Publication series

Name	EPJ Web of Conferences
Publisher	EDP Sciences
ISSN (Print)	2100-014X

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Scheck, M., Gaffney, L. P., Butler, P. A., Hayes, A. B., Wenander, F., Albers, M., Bastin, B., Bauer, C., Blazhev, A., Boenig, S., Bree, N., Cederkall, J., Chupp, T., Cline, D., Cocolios, T. E., Davinson, T., De Witte, H., Diriken, J., Grahn, T., ... Zielinska, M. (2015). Do nuclei go pear-shaped? Coulomb excitation of Rn-220 and Ra-224 at REX-ISOLDE (CERN). In CGS15 - CAPTURE GAMMA-RAY SPECTROSCOPY AND RELATED TOPICS (Vol. 93). Article 01038 (EPJ Web of Conferences). EDP Sciences. https://doi.org/10.1051/epjconf/20159301038

@inproceedings{4d80f85eb999425bafbef4184fa1e138,

title = "Do nuclei go pear-shaped? Coulomb excitation of Rn-220 and Ra-224 at REX-ISOLDE (CERN)",

abstract = "The IS475 collaboration conducted Coulomb-excitation experiments with post-accelerated radioactive Rn-220 and Ra-224 beams at the REX-ISOLDE facility. The beam particles (E-beam: 2.83 MeV/u) were Coulomb excited using Ni-60, Cd-14, and Sn-120 scattering targets. De-excitation gamma-rays were detected employing the Miniball array and scattered particles were detected in a silicon detector. Exploiting the Coulomb-excitation code GOSIA for each nucleus several matrix elements could be obtained from the measured gamma-ray yields. The extracted < 3 parallel to E3 parallel to 0(+)> matrix element allows for the conclusion that, while Rn-220 represents an octupole vibrational system, Ra-224 has already substantial octupole correlations in its ground state. This finding has i(m)plications for the search of CP-violating Schiff moments in the atomic systems of the adjacent odd-mass nuclei.",

author = "M. Scheck and Gaffney, {L. P.} and Butler, {P. A.} and Hayes, {A. B.} and F. Wenander and M. Albers and B. Bastin and C. Bauer and A. Blazhev and S. Boenig and N. Bree and J. Cederkall and T. Chupp and D. Cline and Cocolios, {T. E.} and T. Davinson and {De Witte}, H. and J. Diriken and T. Grahn and A. Herzan and M. Huyse and Jenkins, {D. G.} and Joss, {D. T.} and N. Kesteloot and J. Konki and M. Kowalczyk and Th. Kroell and E. Kwan and R. Lutter and K. Moschner and P. Napiorkowski and J. Pakarinen and M. Pfeiffer and D. Radeck and P. Reiter and K. Reynders and Rigby, {S. V.} and Robledo, {L. M.} and M. Rudigier and S. Sambi and M. Seidlitz and B. Siebeck and T. Stora and P. Thoele and {Van Duppen}, P. and Vermeulen, {M. J.} and {von Schmid}, M. and D. Voulot and N. Warr and K. Wimmer and K. Wrzosek-Lipska and Wu, {C. Y.} and M. Zielinska",

year = "2015",

doi = "10.1051/epjconf/20159301038",

language = "English",

isbn = "978-2-7598-1794-8",

volume = "93",

series = "EPJ Web of Conferences",

publisher = "EDP Sciences",

booktitle = "CGS15 - CAPTURE GAMMA-RAY SPECTROSCOPY AND RELATED TOPICS",

}

Scheck, M, Gaffney, LP, Butler, PA, Hayes, AB, Wenander, F, Albers, M, Bastin, B, Bauer, C, Blazhev, A, Boenig, S, Bree, N, Cederkall, J, Chupp, T, Cline, D, Cocolios, TE, Davinson, T, De Witte, H, Diriken, J, Grahn, T, Herzan, A, Huyse, M, Jenkins, DG, Joss, DT, Kesteloot, N, Konki, J, Kowalczyk, M, Kroell, T, Kwan, E, Lutter, R, Moschner, K, Napiorkowski, P, Pakarinen, J, Pfeiffer, M, Radeck, D, Reiter, P, Reynders, K, Rigby, SV, Robledo, LM, Rudigier, M, Sambi, S, Seidlitz, M, Siebeck, B, Stora, T, Thoele, P, Van Duppen, P, Vermeulen, MJ, von Schmid, M, Voulot, D, Warr, N, Wimmer, K, Wrzosek-Lipska, K, Wu, CY & Zielinska, M 2015, Do nuclei go pear-shaped? Coulomb excitation of Rn-220 and Ra-224 at REX-ISOLDE (CERN). in CGS15 - CAPTURE GAMMA-RAY SPECTROSCOPY AND RELATED TOPICS. vol. 93, 01038, EPJ Web of Conferences, EDP Sciences. https://doi.org/10.1051/epjconf/20159301038

TY - GEN

T1 - Do nuclei go pear-shaped? Coulomb excitation of Rn-220 and Ra-224 at REX-ISOLDE (CERN)

AU - Scheck, M.

AU - Gaffney, L. P.

AU - Butler, P. A.

AU - Hayes, A. B.

AU - Wenander, F.

AU - Albers, M.

AU - Bastin, B.

AU - Bauer, C.

AU - Blazhev, A.

AU - Boenig, S.

AU - Bree, N.

AU - Cederkall, J.

AU - Chupp, T.

AU - Cline, D.

AU - Cocolios, T. E.

AU - Davinson, T.

AU - De Witte, H.

AU - Diriken, J.

AU - Grahn, T.

AU - Herzan, A.

AU - Huyse, M.

AU - Jenkins, D. G.

AU - Joss, D. T.

AU - Kesteloot, N.

AU - Konki, J.

AU - Kowalczyk, M.

AU - Kroell, Th.

AU - Kwan, E.

AU - Lutter, R.

AU - Moschner, K.

AU - Napiorkowski, P.

AU - Pakarinen, J.

AU - Pfeiffer, M.

AU - Radeck, D.

AU - Reiter, P.

AU - Reynders, K.

AU - Rigby, S. V.

AU - Robledo, L. M.

AU - Rudigier, M.

AU - Sambi, S.

AU - Seidlitz, M.

AU - Siebeck, B.

AU - Stora, T.

AU - Thoele, P.

AU - Van Duppen, P.

AU - Vermeulen, M. J.

AU - von Schmid, M.

AU - Voulot, D.

AU - Warr, N.

AU - Wimmer, K.

AU - Wrzosek-Lipska, K.

AU - Wu, C. Y.

AU - Zielinska, M.

PY - 2015

Y1 - 2015

N2 - The IS475 collaboration conducted Coulomb-excitation experiments with post-accelerated radioactive Rn-220 and Ra-224 beams at the REX-ISOLDE facility. The beam particles (E-beam: 2.83 MeV/u) were Coulomb excited using Ni-60, Cd-14, and Sn-120 scattering targets. De-excitation gamma-rays were detected employing the Miniball array and scattered particles were detected in a silicon detector. Exploiting the Coulomb-excitation code GOSIA for each nucleus several matrix elements could be obtained from the measured gamma-ray yields. The extracted < 3 parallel to E3 parallel to 0(+)> matrix element allows for the conclusion that, while Rn-220 represents an octupole vibrational system, Ra-224 has already substantial octupole correlations in its ground state. This finding has i(m)plications for the search of CP-violating Schiff moments in the atomic systems of the adjacent odd-mass nuclei.

AB - The IS475 collaboration conducted Coulomb-excitation experiments with post-accelerated radioactive Rn-220 and Ra-224 beams at the REX-ISOLDE facility. The beam particles (E-beam: 2.83 MeV/u) were Coulomb excited using Ni-60, Cd-14, and Sn-120 scattering targets. De-excitation gamma-rays were detected employing the Miniball array and scattered particles were detected in a silicon detector. Exploiting the Coulomb-excitation code GOSIA for each nucleus several matrix elements could be obtained from the measured gamma-ray yields. The extracted < 3 parallel to E3 parallel to 0(+)> matrix element allows for the conclusion that, while Rn-220 represents an octupole vibrational system, Ra-224 has already substantial octupole correlations in its ground state. This finding has i(m)plications for the search of CP-violating Schiff moments in the atomic systems of the adjacent odd-mass nuclei.

U2 - 10.1051/epjconf/20159301038

DO - 10.1051/epjconf/20159301038

M3 - Conference contribution

SN - 978-2-7598-1794-8

VL - 93

T3 - EPJ Web of Conferences

BT - CGS15 - CAPTURE GAMMA-RAY SPECTROSCOPY AND RELATED TOPICS

PB - EDP Sciences

ER -

Do nuclei go pear-shaped? Coulomb excitation of Rn-220 and Ra-224 at REX-ISOLDE (CERN)

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