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Title: Direct Measurement of Octupole Deformation in 146Ba

Abstract

The octupole strength present in the neutron-rich, radioactive 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 gamma-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.

Authors:
ORCiD logo [1];  [2];  [3];  [2];  [4];  [4];  [2];  [3];  [5];  [2];  [2];  [5];  [2];  [2];  [2];  [2];  [2];  [2];  [2];  [5] more »;  [2];  [2];  [2];  [2] « less
  1. Idaho National Laboratory
  2. Argonne National Laboratory
  3. Lawrence Livermore National Laboratory
  4. University of Rochester
  5. Lawrence Berkeley National Laboratory
Publication Date:
Research Org.:
Idaho National Lab. (INL), Idaho Falls, ID (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1478631
Report Number(s):
INL/CON-17-40902-Rev000
DOE Contract Number:  
AC07-05ID14517
Resource Type:
Conference
Resource Relation:
Conference: Sixth International Conference on Fission and Properties of Neutron-rich Nuclei, Sanibel Island, Florida, USA, 11/06/2016 - 11/12/2016
Country of Publication:
United States
Language:
English
Subject:
73 - NUCLEAR PHYSICS AND RADIATION PHYSICS; octupole; Coulomb excitation; radioactive beam; barium

Citation Formats

Bucher, B., Zhu, S., Wu, C. Y., F. Janssens, R. V., 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., Macchiavelli, A. O., Pardo, R. C., Savard, G., Seweryniak, D., and Vondrasek, R. Direct Measurement of Octupole Deformation in 146Ba. United States: N. p., 2017. Web. doi:10.1142/9789813229426_0037.
Bucher, B., Zhu, S., Wu, C. Y., F. Janssens, R. V., 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., Macchiavelli, A. O., Pardo, R. C., Savard, G., Seweryniak, D., & Vondrasek, R. Direct Measurement of Octupole Deformation in 146Ba. United States. doi:10.1142/9789813229426_0037.
Bucher, B., Zhu, S., Wu, C. Y., F. Janssens, R. V., 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., Macchiavelli, A. O., Pardo, R. C., Savard, G., Seweryniak, D., and Vondrasek, R. Wed . "Direct Measurement of Octupole Deformation in 146Ba". United States. doi:10.1142/9789813229426_0037. https://www.osti.gov/servlets/purl/1478631.
@article{osti_1478631,
title = {Direct Measurement of Octupole Deformation in 146Ba},
author = {Bucher, B. and Zhu, S. and Wu, C. Y. and F. Janssens, R. V. and Cline, D. 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 Dickerson, C. and Harker, J. and Hoffman, C. R. and Kay, B. P. and Kondev, F. G. and Lauritsen, T. and Macchiavelli, A. O. and Pardo, R. C. and Savard, G. and Seweryniak, D. and Vondrasek, R.},
abstractNote = {The octupole strength present in the neutron-rich, radioactive 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 gamma-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.},
doi = {10.1142/9789813229426_0037},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2017},
month = {11}
}

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