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Title: Triaxiality near the 110Ru ground state from Coulomb excitation

Abstract

A multi-step Coulomb excitation measurement with the GRETINA and CHICO2 detector arrays was carried out with a 430-MeV beam of the neutron-rich 110Ru (t1/2 = 12 s) isotope produced at the CARIBU facility. This represents the first successful measurement following the post-acceleration of an unstable isotope of a refractory element. The reduced transition probabilities obtained for levels near the ground state provide strong evidence for a triaxial shape; a conclusion confirmed by comparisons with the results of beyond-mean-field and triaxial rotor model calculations.

Authors:
 [1];  [2];  [3];  [1];  [4];  [1];  [2];  [3];  [5];  [6];  [7];  [8];  [3];  [9];  [10];  [3];  [11];  [3];  [8];  [12] more »;  [3];  [13];  [9];  [3];  [7];  [11];  [2];  [14];  [15];  [16];  [3];  [11];  [8];  [17];  [18];  [3];  [19];  [19];  [3];  [3];  [17];  [2];  [3];  [8];  [7];  [20];  [5] « less
  1. Univ. Paris-Saclay, Gif-sur-Yvette (France)
  2. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  3. Argonne National Lab. (ANL), Argonne, IL (United States)
  4. Argonne National Laboratory (ANL)
  5. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
  6. Univ. of California, Berkeley, CA (United States)
  7. Univ. of Richmond, Richmond, VA (United States)
  8. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
  9. Univ. of Rochester, NY (United States)
  10. Ohio Univ., Athens, OH (United States)
  11. CEA, DAM, DIF, Arpajon (France)
  12. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Univ. of Tennessee, Knoxville, TN (United States)
  13. Argonne National Lab. (ANL), Argonne, IL (United States); Univ. of Maryland, College Park, MD (United States)
  14. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Univ. of Oslo (Norway)
  15. Univ. of Tennessee, Knoxville, TN (United States)
  16. Australian National Univ., Canberra, ACT (Australia)
  17. Univ. of Warsaw (Poland)
  18. Univ. Nacional Autonoma de Mexico (UNAM), Mexico City (Mexico)
  19. Washington Univ., St. Louis, MO (United States)
  20. Georgia Inst. of Technology, Atlanta, GA (United States)
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Argonne National Lab. (ANL), Argonne, IL (United States); Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC); USDOE National Nuclear Security Administration (NNSA)
OSTI Identifier:
1343163
Alternate Identifier(s):
OSTI ID: 1341583; OSTI ID: 1343419; OSTI ID: 1347669; OSTI ID: 1379774
Report Number(s):
LLNL-JRNL-718460
Journal ID: ISSN 0370-2693; KB0401022; ERKBP06; TRN: US1700954
Grant/Contract Number:
AC05-00OR22725; AC02-06CH11357; SC0014442; AC02-05CH11231; AC52-07NA27344; FG02-05ER41379; NA0001801
Resource Type:
Journal Article: Published Article
Journal Name:
Physics Letters. Section B
Additional Journal Information:
Journal Volume: 766; Journal ID: ISSN 0370-2693
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; 46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; 73 NUCLEAR PHYSICS AND RADIATION PHYSICS

Citation Formats

Doherty, D. T., Allmond, James M., Janssens, R. V. F., Korten, W., Zhu, S., Zielinksa, M., Radford, David C., Ayangeakaa, A. D., Bucher, B., Batchelder, J. C., Beausang, C. W., Campbell, C. M., Carpenter, M. P., Cline, D., Crawford, H. L., David, H. M., Delaroche, J. P., Dickerson, C., Fallon, P., Galindo-Uribarri, A., Kondev, Filip, Harker, J., Hayes, A. B., Hendricks, M., Peter, Humby, Girod, M., Gross, Carl J., Klintefjord, M., Kolos, K., Lane, G. J., Lauristen, T., Libert, J., Macchiavelli, A. O., Napiorkowski, P. J., Padilla-Rodal, Elizabeth, Pardo, R. C., Reviol, W., Sarantites, D. G., Savard, G., Seweryniak, D., Srebrny, J., Varner, Jr, Robert L., Vondrasek, R., Wiens, A., Wilson, E., Wood, John L., and Wu, C. Y. Triaxiality near the 110Ru ground state from Coulomb excitation. United States: N. p., 2017. Web. doi:10.1016/j.physletb.2017.01.031.
Doherty, D. T., Allmond, James M., Janssens, R. V. F., Korten, W., Zhu, S., Zielinksa, M., Radford, David C., Ayangeakaa, A. D., Bucher, B., Batchelder, J. C., Beausang, C. W., Campbell, C. M., Carpenter, M. P., Cline, D., Crawford, H. L., David, H. M., Delaroche, J. P., Dickerson, C., Fallon, P., Galindo-Uribarri, A., Kondev, Filip, Harker, J., Hayes, A. B., Hendricks, M., Peter, Humby, Girod, M., Gross, Carl J., Klintefjord, M., Kolos, K., Lane, G. J., Lauristen, T., Libert, J., Macchiavelli, A. O., Napiorkowski, P. J., Padilla-Rodal, Elizabeth, Pardo, R. C., Reviol, W., Sarantites, D. G., Savard, G., Seweryniak, D., Srebrny, J., Varner, Jr, Robert L., Vondrasek, R., Wiens, A., Wilson, E., Wood, John L., & Wu, C. Y. Triaxiality near the 110Ru ground state from Coulomb excitation. United States. doi:10.1016/j.physletb.2017.01.031.
Doherty, D. T., Allmond, James M., Janssens, R. V. F., Korten, W., Zhu, S., Zielinksa, M., Radford, David C., Ayangeakaa, A. D., Bucher, B., Batchelder, J. C., Beausang, C. W., Campbell, C. M., Carpenter, M. P., Cline, D., Crawford, H. L., David, H. M., Delaroche, J. P., Dickerson, C., Fallon, P., Galindo-Uribarri, A., Kondev, Filip, Harker, J., Hayes, A. B., Hendricks, M., Peter, Humby, Girod, M., Gross, Carl J., Klintefjord, M., Kolos, K., Lane, G. J., Lauristen, T., Libert, J., Macchiavelli, A. O., Napiorkowski, P. J., Padilla-Rodal, Elizabeth, Pardo, R. C., Reviol, W., Sarantites, D. G., Savard, G., Seweryniak, D., Srebrny, J., Varner, Jr, Robert L., Vondrasek, R., Wiens, A., Wilson, E., Wood, John L., and Wu, C. Y. Fri . "Triaxiality near the 110Ru ground state from Coulomb excitation". United States. doi:10.1016/j.physletb.2017.01.031.
@article{osti_1343163,
title = {Triaxiality near the 110Ru ground state from Coulomb excitation},
author = {Doherty, D. T. and Allmond, James M. and Janssens, R. V. F. and Korten, W. and Zhu, S. and Zielinksa, M. and Radford, David C. and Ayangeakaa, A. D. and Bucher, B. and Batchelder, J. C. and Beausang, C. W. and Campbell, C. M. and Carpenter, M. P. and Cline, D. and Crawford, H. L. and David, H. M. and Delaroche, J. P. and Dickerson, C. and Fallon, P. and Galindo-Uribarri, A. and Kondev, Filip and Harker, J. and Hayes, A. B. and Hendricks, M. and Peter, Humby and Girod, M. and Gross, Carl J. and Klintefjord, M. and Kolos, K. and Lane, G. J. and Lauristen, T. and Libert, J. and Macchiavelli, A. O. and Napiorkowski, P. J. and Padilla-Rodal, Elizabeth and Pardo, R. C. and Reviol, W. and Sarantites, D. G. and Savard, G. and Seweryniak, D. and Srebrny, J. and Varner, Jr, Robert L. and Vondrasek, R. and Wiens, A. and Wilson, E. and Wood, John L. and Wu, C. Y.},
abstractNote = {A multi-step Coulomb excitation measurement with the GRETINA and CHICO2 detector arrays was carried out with a 430-MeV beam of the neutron-rich 110Ru (t1/2 = 12 s) isotope produced at the CARIBU facility. This represents the first successful measurement following the post-acceleration of an unstable isotope of a refractory element. The reduced transition probabilities obtained for levels near the ground state provide strong evidence for a triaxial shape; a conclusion confirmed by comparisons with the results of beyond-mean-field and triaxial rotor model calculations.},
doi = {10.1016/j.physletb.2017.01.031},
journal = {Physics Letters. Section B},
number = ,
volume = 766,
place = {United States},
year = {Fri Jan 20 00:00:00 EST 2017},
month = {Fri Jan 20 00:00:00 EST 2017}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record at 10.1016/j.physletb.2017.01.031

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  • A multi-step Coulomb excitation measurement with the GRETINA and CHICO2 detector arrays was carried out with a 430-MeV beam of the neutron-rich 110Ru (t1/2 = 12 s) isotope produced at the CARIBU facility. This represents the first successful measurement following the post-acceleration of an unstable isotope of a refractory element. The reduced transition probabilities obtained for levels near the ground state provide strong evidence for a triaxial shape; a conclusion confirmed by comparisons with the results of beyond-mean-field and triaxial rotor model calculations.
  • ¬© 2017 The Authors A multi-step Coulomb excitation measurement with the GRETINA and CHICO2 detector arrays was carried out with a 430-MeV beam of the neutron-rich 110 Ru (t 1/2 =12 s) isotope produced at the CARIBU facility. This represents the first successful measurement following the post-acceleration of an unstable isotope of a refractory element. The reduced transition probabilities obtained for levels near the ground state provide strong evidence for a triaxial shape; a conclusion confirmed by comparisons with the results of beyond-mean-field and triaxial rotor model calculations.
  • Here, a multi-step Coulomb excitation measurement with the GRETINA and CHICO2 detector arrays was carried out with a 430-MeV beam of the neutron-rich 110Ru (t 1/2 = 12 s) isotope produced at the CARIBU facility. The reduced transition probabilities obtained for levels near the ground state provide strong evidence for a triaxial shape; a conclusion confirmed by comparisons with the results of beyond-mean-field and triaxial rotor model calculations.
  • A multi-step Coulomb excitation measurement with the GRETINA and CHICO2 detector arrays was carried out with a 430-MeV beam of the neutron-rich 110Ru (t 1/2 = 12 s) isotope produced at the CARIBU facility. This represents the first successful measurement following the post-acceleration of an unstable isotope of a refractory element. Here, the reduced transition probabilities obtained for levels near the ground state provide strong evidence for a triaxial shape; a conclusion confirmed by comparisons with the results of beyond-mean-field and triaxial rotor model calculations.
  • We have used the particle-gamma coincidence method, Coulomb excitation with 12 MeV ..cap alpha.. particles and 48 MeV /sup 16/O ion beams, and a thick enriched target to experimentally determine the intrinsic nuclear shapes of the even-even erbium isotopes /sup 162/Er and /sup 164/Er. The evaluation was carried out using a computer code based on the semiclassical Winther-de Boer code. The intrinsic nuclear shapes of /sup 162/Er and /sup 164/Er are found to be prolate, which disagrees with a recent microscopic calculation using the Reid soft-core nucleon-nucleon potential.