Mass measurements of neutron-rich Rb and Sr isotopes

Klawitter, R.; Bader, A.; Brodeur, M.; Chowdhury, U.; Chaudhuri, A.; Fallis, J.; Gallant, A. T.; Grossheim, A.; Kwiatkowski, A. A.; Lascar, D.; Leach, K. G.; Lennarz, A.; Macdonald, T.D.; Pearkes, J.; Seeraji, S.; Simón, Martín; Simon, Vanessa V.; Schultz, B. E.; Dilling, J.

doi:10.1103/physrevc.93.045807

Cited by 19 publications

(22 citation statements)

References 46 publications

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“…Analysis of the data followed the same procedure outlined in other recent publications (e.g. [33] for the basics of ToF-ICR measurements at TITAN including ion-ion interactions, [34] for basic treatment of ToF-ICR with HCI, and [35] for statistical methods unique to HCI). In all cases, we only analyzed shots from MPET that contained 2 or fewer detected ions in order to minimize the effects of ion-ion interactions.…”

Section: Discussionmentioning

confidence: 99%

Precision mass measurements of Cd125–127 isotopes and isomers approaching the N=82 closed shell

Lascar¹,

Klawitter²,

Babcock³

et al. 2017

Phys. Rev. C

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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 132 Sn on the chart of nuclides. Of particular note is the clear identification of the ground state mass in 127 Cd 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 127/m Cd, we present other cadmium masses measured ( 125/m Cd and 126 Cd) 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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Section: Discussionmentioning

confidence: 99%

Precision mass measurements of Cd125–127 isotopes and isomers approaching the N=82 closed shell

Lascar¹,

Klawitter²,

Babcock³

et al. 2017

Phys. Rev. C

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“…The corresponding mass excess values (ME ISOLTRAP ) and values from AME2012 [22] (ME AME2012 ) are given, as well as ISOLTRAP-AME2012 . In the last column are shown the results of a recent publication (2016) from the TITAN experiment [24], not yet included in the AME2012.…”

Section: Methodsmentioning

confidence: 99%

“…IV for details. Again, the sudden increase at N = 60 is a signature of nuclear deformation [22][23][24].…”

Section: Introductionmentioning

confidence: 93%

“…The corresponding mass excess (ME ISOLTRAP ) values are presented. Two mass excess values not yet included in the AME2012 are also shown, one obtained from a previous mass measurement performed at ISOLTRAP in 2013 (ME ISOLTRAP 2013 ) [23], and from the TITAN experiment (ME TITAN ) [24].…”

Section: Isotopementioning

confidence: 99%

“…Most recent results addressed the low-Z border of the deformation region [23,24,27,28]. They show that the nuclear structure changes with decreasing proton number.…”

Section: Introductionmentioning

confidence: 99%

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Nuclear deformation in the A≈100 region: Comparison between new masses and mean-field predictions

et al. 2017

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An extension of the atomic mass surface in the region A ≈ 100 was performed via measurements of the 100−102 Sr and 100−102 Rb masses with the ion-trap spectrometer ISOLTRAP at CERN-ISOLDE, including the first direct mass determination of 102 Sr and 101,102 Rb. These measurements confirm the continuation of the region of deformation with the increase of neutron number, at least as far as N = 65. To interpret the deformation in the strontium isotopic chain and to determine whether an onset of deformation is present in heavier krypton isotopes, a comparison is made between the experimental values and mean-field and beyond mean-field results available in the literature. To complete this comparison Hartree-Fock-Bogoliubov calculations for even and odd isotopes were performed, illustrating the competition of nuclear shapes in the region.

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Masses of Exotic Nuclei

Blaum¹,

Eliseev²,

Goriely³

2022

Handbook of Nuclear Physics

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Masses of exotic nuclei play a key role in multiple physics applications ranging from nuclear structure studies and input to astrophysical modeling to tests of the electroweak standard model, quantum electrodynamics, and neutrino physics. The nowadays most prominent mass spectrometry techniques rely on the storage and cooling of charged particles in multi-reflection time-of-flight, Penning-trap, and storage ring devices and the measurement of the revolution frequency of the ion of interest to a reference ion. We provide a comprehensive overview of these measurement techniques as well as the status of the most important K. Blaum ( ) • S.

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Mass measurements of neutron-rich Rb and Sr isotopes

Cited by 19 publications

References 46 publications

Precision mass measurements of Cd125–127 isotopes and isomers approaching the N=82 closed shell

Precision mass measurements of Cd125–127 isotopes and isomers approaching the N=82 closed shell

Nuclear deformation in the A≈100 region: Comparison between new masses and mean-field predictions

Masses of Exotic Nuclei

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