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

^*Corresponding author for this work

School of Physics and Astronomy

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

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
Editors	R Schwengner, K Zuber
Place of Publication	CEDEX A
Publisher	E D P SCIENCES
Number of pages	4
DOIs	https://doi.org/10.1051/epjconf/20159301038
Publication status	Published - 2015
Event	15th International Symposium on Capture Gamma-Ray Spectroscopy and Related Topics (CGS) - Dresden, Germany Duration: 25 Aug 2014 → 29 Aug 2014

Publication series

Name	EPJ Web of Conferences
Publisher	E D P SCIENCES
Volume	93
ISSN (Print)	2100-014X

Conference

Conference	15th International Symposium on Capture Gamma-Ray Spectroscopy and Related Topics (CGS)
Country/Territory	Germany
Period	25/08/14 → 29/08/14

Keywords / Materials (for Non-textual outputs)

MOMENTS

Access to Document

10.1051/epjconf/20159301038

Cite this

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 R. Schwengner, & K. Zuber (Eds.), CGS15 - CAPTURE GAMMA-RAY SPECTROSCOPY AND RELATED TOPICS (EPJ Web of Conferences; Vol. 93). E D P SCIENCES. https://doi.org/10.1051/epjconf/20159301038

@inproceedings{34f2e7e256ea43219069a923f01b04ab,

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.",

keywords = "MOMENTS",

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",

series = "EPJ Web of Conferences",

publisher = "E D P SCIENCES",

editor = "R Schwengner and K Zuber",

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

note = "15th International Symposium on Capture Gamma-Ray Spectroscopy and Related Topics (CGS) ; Conference date: 25-08-2014 Through 29-08-2014",

}

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 R Schwengner & K Zuber (eds), CGS15 - CAPTURE GAMMA-RAY SPECTROSCOPY AND RELATED TOPICS. EPJ Web of Conferences, vol. 93, E D P SCIENCES, CEDEX A, 15th International Symposium on Capture Gamma-Ray Spectroscopy and Related Topics (CGS), Germany, 25/08/14. https://doi.org/10.1051/epjconf/20159301038

Do nuclei go pear-shaped? Coulomb excitation of Rn-220 and Ra-224 at REX-ISOLDE (CERN). / Scheck, M.; Gaffney, L. P.; Butler, P. A. et al.
CGS15 - CAPTURE GAMMA-RAY SPECTROSCOPY AND RELATED TOPICS. ed. / R Schwengner; K Zuber. CEDEX A: E D P SCIENCES, 2015. (EPJ Web of Conferences; Vol. 93).

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

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.

KW - MOMENTS

U2 - 10.1051/epjconf/20159301038

DO - 10.1051/epjconf/20159301038

M3 - Conference contribution

T3 - EPJ Web of Conferences

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

A2 - Schwengner, R

A2 - Zuber, K

PB - E D P SCIENCES

CY - CEDEX A

T2 - 15th International Symposium on Capture Gamma-Ray Spectroscopy and Related Topics (CGS)

Y2 - 25 August 2014 through 29 August 2014

ER -

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

Abstract

Publication series

Conference

Keywords / Materials (for Non-textual outputs)

Access to Document

Fingerprint

Cite this