First direct observation of enhanced octupole collectivity in 146Ba

B. Bucher; S. Zhu; C. Y. Wu; R. V.F. Janssens; D. Cline; A. B. Hayes; A. D. Ayangeakaa; M. Q. Buckner; C. M. Campbell; M. P. Carpenter; J. A. Clark; H. L. Crawford; H. M. David; C. Dickerson; J. Harker; C. R. Hoffman; B. P. Kay; F. G. Kondev; T. Lauritsen; A. O. MacChiavelli; R. C. Pardo; G. Savard; D. Seweryniak; R. Vondrasek

First direct observation of enhanced octupole collectivity in ¹⁴⁶Ba

B. Bucher
, S. Zhu
, C. Y. Wu
, R. V.F. Janssens
, D. Cline
, A. B. Hayes
, A. D. Ayangeakaa
, M. Q. Buckner
, C. M. Campbell
, M. P. Carpenter
, J. A. Clark
, H. L. Crawford
, H. M. David
, C. Dickerson
, J. Harker
, C. R. Hoffman
, B. P. Kay
, F. G. Kondev
, T. Lauritsen
, A. O. MacChiavelli

R. C. Pardo, G. Savard, D. Seweryniak, R. Vondrasek

Nuclear Nonproliferation

Research output: Contribution to journal › Conference article › peer-review

Abstract

The octupole strength present in the neutron-rich, radiocative nucleus ¹⁴⁶Ba has been experimentally determined for the first time using Coulomb excitation. To achieve this, A=146 fission fragments from CARIBU were post-accelerated by the Argonne Tandem Linac Accelerator System (ATLAS) and impinged on a thin ²⁰⁸Pb target. Using the GRETINA γ-ray spectrometer and the CHICO2 heavy-ion counter, the reduced transition probability B(E3; 3^-→0⁺) was determined as 48(⁺²¹_-29) W.u. The new result provides further experimental evidence for the presence of a region of octupole deformation surrounding the neutron-rich barium isotopes.

Original language	English
Article number	077
Journal	Proceedings of Science
Volume	2016-September
State	Published - 2016
Event	26th International Nuclear Physics Conference, INPC 2016 - Adelaide, Australia Duration: Sep 11 2016 → Sep 16 2016

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Bucher, B., Zhu, S., Wu, C. Y., Janssens, R. V. F., Cline, D., Hayes, A. B., Ayangeakaa, A. D., Buckner, M. Q., Campbell, C. M., Carpenter, M. P., Clark, J. A., Crawford, H. L., David, H. M., Dickerson, C., Harker, J., Hoffman, C. R., Kay, B. P., Kondev, F. G., Lauritsen, T., ... Vondrasek, R. (2016). First direct observation of enhanced octupole collectivity in ¹⁴⁶Ba. Proceedings of Science, 2016-September, Article 077.

@article{f44328a1ad5b42838543213dd3c90558,

title = "First direct observation of enhanced octupole collectivity in 146Ba",

abstract = "The octupole strength present in the neutron-rich, radiocative nucleus 146Ba has been experimentally determined for the first time using Coulomb excitation. To achieve this, A=146 fission fragments from CARIBU were post-accelerated by the Argonne Tandem Linac Accelerator System (ATLAS) and impinged on a thin 208Pb target. Using the GRETINA γ-ray spectrometer and the CHICO2 heavy-ion counter, the reduced transition probability B(E3; 3-→0+) was determined as 48(+21-29) W.u. The new result provides further experimental evidence for the presence of a region of octupole deformation surrounding the neutron-rich barium isotopes.",

author = "B. Bucher and S. Zhu and Wu, \{C. Y.\} and Janssens, \{R. V.F.\} and D. Cline and Hayes, \{A. B.\} and Ayangeakaa, \{A. D.\} and Buckner, \{M. Q.\} and Campbell, \{C. M.\} and Carpenter, \{M. P.\} and Clark, \{J. A.\} and Crawford, \{H. L.\} and David, \{H. M.\} and C. Dickerson and J. Harker and Hoffman, \{C. R.\} and Kay, \{B. P.\} and Kondev, \{F. G.\} and T. Lauritsen and MacChiavelli, \{A. O.\} and Pardo, \{R. C.\} and G. Savard and D. Seweryniak and R. Vondrasek",

note = "Publisher Copyright: {\textcopyright} Copyright owned by the author(s).; 26th International Nuclear Physics Conference, INPC 2016 ; Conference date: 11-09-2016 Through 16-09-2016",

year = "2016",

language = "English",

volume = "2016-September",

journal = "Proceedings of Science",

issn = "1824-8039",

publisher = "Sissa Medialab Srl",

}

Bucher, B, Zhu, S, Wu, CY, Janssens, RVF, Cline, D, Hayes, AB, Ayangeakaa, AD, Buckner, MQ, Campbell, CM, Carpenter, MP, Clark, JA, Crawford, HL, David, HM, Dickerson, C, Harker, J, Hoffman, CR, Kay, BP, Kondev, FG, Lauritsen, T, MacChiavelli, AO, Pardo, RC, Savard, G, Seweryniak, D & Vondrasek, R 2016, 'First direct observation of enhanced octupole collectivity in ¹⁴⁶Ba', Proceedings of Science, vol. 2016-September, 077.

TY - JOUR

T1 - First direct observation of enhanced octupole collectivity in 146Ba

AU - Bucher, B.

AU - Zhu, S.

AU - Wu, C. Y.

AU - Janssens, R. V.F.

AU - Cline, D.

AU - Hayes, A. B.

AU - Ayangeakaa, A. D.

AU - Buckner, M. Q.

AU - Campbell, C. M.

AU - Carpenter, M. P.

AU - Clark, J. A.

AU - Crawford, H. L.

AU - David, H. M.

AU - Dickerson, C.

AU - Harker, J.

AU - Hoffman, C. R.

AU - Kay, B. P.

AU - Kondev, F. G.

AU - Lauritsen, T.

AU - MacChiavelli, A. O.

AU - Pardo, R. C.

AU - Savard, G.

AU - Seweryniak, D.

AU - Vondrasek, R.

PY - 2016

Y1 - 2016

N2 - The octupole strength present in the neutron-rich, radiocative nucleus 146Ba has been experimentally determined for the first time using Coulomb excitation. To achieve this, A=146 fission fragments from CARIBU were post-accelerated by the Argonne Tandem Linac Accelerator System (ATLAS) and impinged on a thin 208Pb target. Using the GRETINA γ-ray spectrometer and the CHICO2 heavy-ion counter, the reduced transition probability B(E3; 3-→0+) was determined as 48(+21-29) W.u. The new result provides further experimental evidence for the presence of a region of octupole deformation surrounding the neutron-rich barium isotopes.

AB - The octupole strength present in the neutron-rich, radiocative nucleus 146Ba has been experimentally determined for the first time using Coulomb excitation. To achieve this, A=146 fission fragments from CARIBU were post-accelerated by the Argonne Tandem Linac Accelerator System (ATLAS) and impinged on a thin 208Pb target. Using the GRETINA γ-ray spectrometer and the CHICO2 heavy-ion counter, the reduced transition probability B(E3; 3-→0+) was determined as 48(+21-29) W.u. The new result provides further experimental evidence for the presence of a region of octupole deformation surrounding the neutron-rich barium isotopes.

UR - https://www.scopus.com/pages/publications/85034580939

M3 - Conference article

AN - SCOPUS:85034580939

SN - 1824-8039

VL - 2016-September

JO - Proceedings of Science

JF - Proceedings of Science

M1 - 077

T2 - 26th International Nuclear Physics Conference, INPC 2016

Y2 - 11 September 2016 through 16 September 2016

ER -

First direct observation of enhanced octupole collectivity in ¹⁴⁶Ba

Abstract

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