Precision mass measurements of Cd 125-127 isotopes and isomers approaching the N=82 closed shell

D. Lascar; R. Klawitter; C. Babcock; E. Leistenschneider; S. R. Stroberg; B. R. Barquest; A. Finlay; M. Foster; A. T. Gallant; P. Hunt; J. Kelly; B. Kootte; Y. Lan; S. F. Paul; M. L. Phan; M. P. Reiter; B. Schultz; D. Short; J. Simonis; C. Andreoiu; M. Brodeur; I. Dillmann; G. Gwinner; J. D. Holt; A. A. Kwiatkowski; K. G. Leach; J. Dilling

doi:10.1103/PhysRevC.96.044323

Precision mass measurements of Cd 125-127 isotopes and isomers approaching the N=82 closed shell

D. Lascar, R. Klawitter, C. Babcock, E. Leistenschneider, S. R. Stroberg, B. R. Barquest, A. Finlay, M. Foster, A. T. Gallant, P. Hunt, J. Kelly, B. Kootte, Y. Lan, S. F. Paul, M. L. Phan, M. P. Reiter, B. Schultz, D. Short, J. Simonis, C. AndreoiuM. Brodeur, I. Dillmann, G. Gwinner, J. D. Holt, A. A. Kwiatkowski, K. G. Leach, J. Dilling

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Abstract

We present the results of precision mass measurements of neutron-rich cadmium isotopes. These nuclei approach the N=82 closed neutron shell and are important to nuclear structure as they lie near doubly magic Sn132 on the chart of nuclides. Of particular note is the clear identification of the ground-state mass in Cd127 along with the isomeric state. We show that the ground state identified in a previous mass measurement which dominates the mass value in the Atomic Mass Evaluation is an isomeric state. In addition to Cd127/m, we present other cadmium masses measured (Cd125/m and Cd126) in a recent TITAN experiment at TRIUMF. Finally, we compare our measurements to new ab initio shell-model calculations and comment on the state of the field in the N=82 region.

Original language	English
Article number	044323
Journal	Physical Review C
Volume	96
Issue number	4
DOIs	https://doi.org/10.1103/PhysRevC.96.044323
State	Published - Oct 23 2017
Externally published	Yes

Funding

TRIUMF receives federal funding via a contribution agreement with the National Research Council of Canada (NRC). This work was partially supported by the Natural Sciences and Engineering Research Council of Canada (NSERC), the Canada Foundation for Innovation (CFI), the US National Science Foundation under Grant No. PHY-1419765, the Deutsche Forschungsgemeinschaft (DFG) under Grant No. FR 601/3-1, Brazil's Conselho Nacional de Desenvolvimento Científico e Technológico (CNPq), and the BMBF under Contract No. 05P15RDFN1. The valence-space im-srg code used in this work makes use of the Armadillo C++ library . Computations were performed with an allocation of computing resources at the Jülich Supercomputing Center. D.L. wishes to thank C. Jannace and F. Friend for editing support.

Funders	Funder number
Conselho Nacional de Desenvolvimento Científico e Technológico
US National Science Foundation	PHY-1419765
Natural Sciences and Engineering Research Council of Canada
Deutsche Forschungsgemeinschaft	FR 601/3-1
Deutsche Forschungsgemeinschaft
Canada Foundation for Innovation
Bundesministerium für Bildung und Forschung	05P15RDFN1
Bundesministerium für Bildung und Forschung
Conselho Nacional de Desenvolvimento Científico e Tecnológico

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10.1103/PhysRevC.96.044323

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Lascar, D., Klawitter, R., Babcock, C., Leistenschneider, E., Stroberg, S. R., Barquest, B. R., Finlay, A., Foster, M., Gallant, A. T., Hunt, P., Kelly, J., Kootte, B., Lan, Y., Paul, S. F., Phan, M. L., Reiter, M. P., Schultz, B., Short, D., Simonis, J., ... Dilling, J. (2017). Precision mass measurements of Cd 125-127 isotopes and isomers approaching the N=82 closed shell. Physical Review C, 96(4), Article 044323. https://doi.org/10.1103/PhysRevC.96.044323

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title = "Precision mass measurements of Cd 125-127 isotopes and isomers approaching the N=82 closed shell",

abstract = "We present the results of precision mass measurements of neutron-rich cadmium isotopes. These nuclei approach the N=82 closed neutron shell and are important to nuclear structure as they lie near doubly magic Sn132 on the chart of nuclides. Of particular note is the clear identification of the ground-state mass in Cd127 along with the isomeric state. We show that the ground state identified in a previous mass measurement which dominates the mass value in the Atomic Mass Evaluation is an isomeric state. In addition to Cd127/m, we present other cadmium masses measured (Cd125/m and Cd126) in a recent TITAN experiment at TRIUMF. Finally, we compare our measurements to new ab initio shell-model calculations and comment on the state of the field in the N=82 region.",

author = "D. Lascar and R. Klawitter and C. Babcock and E. Leistenschneider and Stroberg, {S. R.} and Barquest, {B. R.} and A. Finlay and M. Foster and Gallant, {A. T.} and P. Hunt and J. Kelly and B. Kootte and Y. Lan and Paul, {S. F.} and Phan, {M. L.} and Reiter, {M. P.} and B. Schultz and D. Short and J. Simonis and C. Andreoiu and M. Brodeur and I. Dillmann and G. Gwinner and Holt, {J. D.} and Kwiatkowski, {A. A.} and Leach, {K. G.} and J. Dilling",

note = "Publisher Copyright: {\textcopyright} 2017 American Physical Society.",

year = "2017",

month = oct,

day = "23",

doi = "10.1103/PhysRevC.96.044323",

language = "English",

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Lascar, D, Klawitter, R, Babcock, C, Leistenschneider, E, Stroberg, SR, Barquest, BR, Finlay, A, Foster, M, Gallant, AT, Hunt, P, Kelly, J, Kootte, B, Lan, Y, Paul, SF, Phan, ML, Reiter, MP, Schultz, B, Short, D, Simonis, J, Andreoiu, C, Brodeur, M, Dillmann, I, Gwinner, G, Holt, JD, Kwiatkowski, AA, Leach, KG & Dilling, J 2017, 'Precision mass measurements of Cd 125-127 isotopes and isomers approaching the N=82 closed shell', Physical Review C, vol. 96, no. 4, 044323. https://doi.org/10.1103/PhysRevC.96.044323

TY - JOUR

T1 - Precision mass measurements of Cd 125-127 isotopes and isomers approaching the N=82 closed shell

AU - Lascar, D.

AU - Klawitter, R.

AU - Babcock, C.

AU - Leistenschneider, E.

AU - Stroberg, S. R.

AU - Barquest, B. R.

AU - Finlay, A.

AU - Foster, M.

AU - Gallant, A. T.

AU - Hunt, P.

AU - Kelly, J.

AU - Kootte, B.

AU - Lan, Y.

AU - Paul, S. F.

AU - Phan, M. L.

AU - Reiter, M. P.

AU - Schultz, B.

AU - Short, D.

AU - Simonis, J.

AU - Andreoiu, C.

AU - Brodeur, M.

AU - Dillmann, I.

AU - Gwinner, G.

AU - Holt, J. D.

AU - Kwiatkowski, A. A.

AU - Leach, K. G.

AU - Dilling, J.

PY - 2017/10/23

Y1 - 2017/10/23

N2 - We present the results of precision mass measurements of neutron-rich cadmium isotopes. These nuclei approach the N=82 closed neutron shell and are important to nuclear structure as they lie near doubly magic Sn132 on the chart of nuclides. Of particular note is the clear identification of the ground-state mass in Cd127 along with the isomeric state. We show that the ground state identified in a previous mass measurement which dominates the mass value in the Atomic Mass Evaluation is an isomeric state. In addition to Cd127/m, we present other cadmium masses measured (Cd125/m and Cd126) in a recent TITAN experiment at TRIUMF. Finally, we compare our measurements to new ab initio shell-model calculations and comment on the state of the field in the N=82 region.

AB - We present the results of precision mass measurements of neutron-rich cadmium isotopes. These nuclei approach the N=82 closed neutron shell and are important to nuclear structure as they lie near doubly magic Sn132 on the chart of nuclides. Of particular note is the clear identification of the ground-state mass in Cd127 along with the isomeric state. We show that the ground state identified in a previous mass measurement which dominates the mass value in the Atomic Mass Evaluation is an isomeric state. In addition to Cd127/m, we present other cadmium masses measured (Cd125/m and Cd126) in a recent TITAN experiment at TRIUMF. Finally, we compare our measurements to new ab initio shell-model calculations and comment on the state of the field in the N=82 region.

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DO - 10.1103/PhysRevC.96.044323

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SN - 2469-9985

VL - 96

JO - Physical Review C

JF - Physical Review C

IS - 4

M1 - 044323

ER -

Precision mass measurements of Cd 125-127 isotopes and isomers approaching the N=82 closed shell

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