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Title: Mass measurements of neutron-rich indium isotopes toward the N = 82 shell closure

Abstract

Precise mass measurements of the neutron-rich 125–130In isotopes have been performed with the TITAN Penning trap mass spectrometer. TITAN's electron beam ion trap was used to charge breed the ions to charge state q = 13+ thus providing the necessary resolving power to measure not only the ground states but also isomeric states at each mass number. Here, the properties of the ground states are investigated through a series of mass differentials, highlighting trends in the indium isotopic chain as compared to its proton-magic neighbor, tin (Z = 50). In addition, the energies of the indium isomers are presented. The (8-) level in 128In is found to be 78 keV lower than previously thought and the (21/2-) isomer in 127In is shown to be lower than the literature value by more than 150 keV.

Authors:
 [1];  [2];  [3];  [4];  [1];  [3];  [5];  [6];  [7];  [8];  [3];  [9];  [3];  [10];  [11];  [12];  [13];  [14];  [15];  [16] more »;  [17];  [18];  [3] « less
  1. TRIUMF, Vancouver, BC (Canada)
  2. TRIUMF, Vancouver, BC (Canada); Max Planck Inst. for Nuclear Physics, Heidelberg (Germany)
  3. TRIUMF, Vancouver, BC (Canada); Univ. of British Columbia, Vancouver, BC (Canada). Dept. of Physics and Astronomy
  4. TRIUMF, Vancouver, BC (Canada); Argonne National Lab. (ANL), Argonne, IL (United States). Physics Division
  5. TRIUMF, Vancouver, BC (Canada); Univ. of Surrey, Guildford (United Kingdom). Dept. of Physics
  6. TRIUMF, Vancouver, BC (Canada); Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
  7. Colorado School of Mines, Golden, CO (United States). Dept. of Physics
  8. TRIUMF, Vancouver, BC (Canada); Univ. of Manitoba, Winnipeg, MB (Canada). Dept. of Physics and Astronomy
  9. TRIUMF, Vancouver, BC (Canada); Heidelberg Univ. (Germany)
  10. TRIUMF, Vancouver, BC (Canada); Justus Liebig Univ., Giessen (Germany). II. Physics Inst.
  11. TRIUMF, Vancouver, BC (Canada); Univ. of Notre Dame, IN (United States). Dept. of Physics
  12. TRIUMF, Vancouver, BC (Canada); Simon Fraser Univ., Burnaby, BC (Canada). Dept. of Chemistry
  13. Simon Fraser Univ., Burnaby, BC (Canada). Dept. of Chemistry
  14. Univ. of Notre Dame, IN (United States). Dept. of Physics
  15. TRIUMF, Vancouver, BC (Canada); Univ. of Victoria, BC (Canada). Dept. of Physics and Astronomy
  16. Univ. of Manitoba, Winnipeg, MB (Canada). Dept. of Physics and Astronomy
  17. TRIUMF, Vancouver, BC (Canada); Texas A & M Univ., College Station, TX (United States). Cyclotron Inst.
  18. TRIUMF, Vancouver, BC (Canada); Colorado School of Mines, Golden, CO (United States). Dept. of Physics
Publication Date:
Research Org.:
Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States); Argonne National Laboratory (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA); National Research Council Canada (NRC); Natural Sciences and Engineering Research Council of Canada (NSERC); Canada Foundation for Innovation (CFI); National Science Foundation (NSF); German Research Foundation (DFG); National Council for Scientific and Technological Development (CNPq) (Brazil); Federal Ministry for Education and Research (BMBF) (Germany)
OSTI Identifier:
1458617
Alternate Identifier(s):
OSTI ID: 1420016
Report Number(s):
LLNL-JRNL-742870
Journal ID: ISSN 2469-9985; PRVCAN; 897804; TRN: US1901481
Grant/Contract Number:  
AC52-07NA27344; PHY-1419765; SC0017649; FR 601/3-1; 05P15RGFN1
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review C
Additional Journal Information:
Journal Volume: 97; Journal Issue: 2; Journal ID: ISSN 2469-9985
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; binding energy and masses; isomer decays; lifetimes and widths; 90 ≤ A ≤ 149

Citation Formats

Babcock, C., Klawitter, R., Leistenschneider, E., Lascar, D., Barquest, B. R., Finlay, A., Foster, M., Gallant, A. T., Hunt, P., Kootte, B., Lan, Y., Paul, S. F., Phan, M. L., Reiter, M. P., Schultz, B., Short, D., Andreoiu, C., Brodeur, M., Dillmann, I., Gwinner, G., Kwiatkowski, A. A., Leach, K. G., and Dilling, J. Mass measurements of neutron-rich indium isotopes toward the N=82 shell closure. United States: N. p., 2018. Web. doi:10.1103/PhysRevC.97.024312.
Babcock, C., Klawitter, R., Leistenschneider, E., Lascar, D., Barquest, B. R., Finlay, A., Foster, M., Gallant, A. T., Hunt, P., Kootte, B., Lan, Y., Paul, S. F., Phan, M. L., Reiter, M. P., Schultz, B., Short, D., Andreoiu, C., Brodeur, M., Dillmann, I., Gwinner, G., Kwiatkowski, A. A., Leach, K. G., & Dilling, J. Mass measurements of neutron-rich indium isotopes toward the N=82 shell closure. United States. https://doi.org/10.1103/PhysRevC.97.024312
Babcock, C., Klawitter, R., Leistenschneider, E., Lascar, D., Barquest, B. R., Finlay, A., Foster, M., Gallant, A. T., Hunt, P., Kootte, B., Lan, Y., Paul, S. F., Phan, M. L., Reiter, M. P., Schultz, B., Short, D., Andreoiu, C., Brodeur, M., Dillmann, I., Gwinner, G., Kwiatkowski, A. A., Leach, K. G., and Dilling, J. Fri . "Mass measurements of neutron-rich indium isotopes toward the N=82 shell closure". United States. https://doi.org/10.1103/PhysRevC.97.024312. https://www.osti.gov/servlets/purl/1458617.
@article{osti_1458617,
title = {Mass measurements of neutron-rich indium isotopes toward the N=82 shell closure},
author = {Babcock, C. and Klawitter, R. and Leistenschneider, E. and Lascar, D. and Barquest, B. R. and Finlay, A. and Foster, M. and Gallant, A. T. and Hunt, P. and Kootte, B. and Lan, Y. and Paul, S. F. and Phan, M. L. and Reiter, M. P. and Schultz, B. and Short, D. and Andreoiu, C. and Brodeur, M. and Dillmann, I. and Gwinner, G. and Kwiatkowski, A. A. and Leach, K. G. and Dilling, J.},
abstractNote = {Precise mass measurements of the neutron-rich 125–130In isotopes have been performed with the TITAN Penning trap mass spectrometer. TITAN's electron beam ion trap was used to charge breed the ions to charge state q = 13+ thus providing the necessary resolving power to measure not only the ground states but also isomeric states at each mass number. Here, the properties of the ground states are investigated through a series of mass differentials, highlighting trends in the indium isotopic chain as compared to its proton-magic neighbor, tin (Z = 50). In addition, the energies of the indium isomers are presented. The (8-) level in 128In is found to be 78 keV lower than previously thought and the (21/2-) isomer in 127In is shown to be lower than the literature value by more than 150 keV.},
doi = {10.1103/PhysRevC.97.024312},
journal = {Physical Review C},
number = 2,
volume = 97,
place = {United States},
year = {Fri Feb 09 00:00:00 EST 2018},
month = {Fri Feb 09 00:00:00 EST 2018}
}

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Figures / Tables:

FIG. 1. FIG. 1. : Layout of the TITAN experiment, showing the three ion traps used for this experiment: the RFQ cooler and buncher, the EBIT charge breeder and the measurement Penning trap. Arrows show the path of the incoming ISAC/TIS beam as well as the singly charged ion (SCI) beam andmore » the highly charged ion (HCI) beam. See text for details.« less

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