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High-precision mass measurements for the isobaric multiplet mass equation at A = 52

Nesterenko, D. A. ; Kankainen, A. ; Canete, L. ; Block, M ; Cox, D. M. ; Eronen, Jussi T. ; Fahlander, C. LU ; Forsberg, U. LU ; Gerl, J and Golubev, P. LU , et al. (2017) In Journal of Physics G: Nuclear and Particle Physics 44(6).
Abstract

Masses of 52Co, 52Com, 52Fe, 52Fem, and 52Mn have been measured with the JYFLTRAP double Penning trap mass spectrometer. The isobaric multiplet mass equation for the T = 2 quintet at A = 52 has been studied employing the new mass values. No significant breakdown (beyond the level) of the quadratic form of the IMME was observed (). The cubic coefficient was 6.0(32) keV (). The excitation energies for the isomer and the T = 2 isobaric analog state in 52Co have been determined to be 374(13) keV and 2922(13) keV, respectively. The measured mass values for 52Co and 52Com are 29(10) keV and 16(15) keV higher, respectively,... (More)

Masses of 52Co, 52Com, 52Fe, 52Fem, and 52Mn have been measured with the JYFLTRAP double Penning trap mass spectrometer. The isobaric multiplet mass equation for the T = 2 quintet at A = 52 has been studied employing the new mass values. No significant breakdown (beyond the level) of the quadratic form of the IMME was observed (). The cubic coefficient was 6.0(32) keV (). The excitation energies for the isomer and the T = 2 isobaric analog state in 52Co have been determined to be 374(13) keV and 2922(13) keV, respectively. The measured mass values for 52Co and 52Com are 29(10) keV and 16(15) keV higher, respectively, than obtained in a recent storage-ring experiment, and significantly lower than predicted by extrapolations. Consequently, this has an impact on the proton separation energies for 52Co and 53Ni relevant for the astrophysical rapid proton capture process. The Q value for the proton decay from the isomer in 53Co has been determined with an unprecedented precision, keV.

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organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
isobaric multiplet, mass measurement, Penning trap
in
Journal of Physics G: Nuclear and Particle Physics
volume
44
issue
6
article number
065103
pages
19 pages
publisher
IOP Publishing
external identifiers
  • scopus:85019833254
  • wos:000399822900007
ISSN
0954-3899
DOI
10.1088/1361-6471/aa67ae
project
Nuclear Structure at the Limits: Isotope-selective Spectroscopy
language
English
LU publication?
yes
id
2c859150-4561-44c3-a640-54d56881a1c7
date added to LUP
2017-06-15 11:03:14
date last changed
2025-01-07 15:28:34
@article{2c859150-4561-44c3-a640-54d56881a1c7,
  abstract     = {{<p>Masses of <sup>52</sup>Co, <sup>52</sup>Co<sup>m</sup>, <sup>52</sup>Fe, <sup>52</sup>Fe<sup>m</sup>, and <sup>52</sup>Mn have been measured with the JYFLTRAP double Penning trap mass spectrometer. The isobaric multiplet mass equation for the T = 2 quintet at A = 52 has been studied employing the new mass values. No significant breakdown (beyond the level) of the quadratic form of the IMME was observed (). The cubic coefficient was 6.0(32) keV (). The excitation energies for the isomer and the T = 2 isobaric analog state in <sup>52</sup>Co have been determined to be 374(13) keV and 2922(13) keV, respectively. The measured mass values for <sup>52</sup>Co and <sup>52</sup>Co<sup>m</sup> are 29(10) keV and 16(15) keV higher, respectively, than obtained in a recent storage-ring experiment, and significantly lower than predicted by extrapolations. Consequently, this has an impact on the proton separation energies for <sup>52</sup>Co and <sup>53</sup>Ni relevant for the astrophysical rapid proton capture process. The Q value for the proton decay from the isomer in <sup>53</sup>Co has been determined with an unprecedented precision, keV.</p>}},
  author       = {{Nesterenko, D. A. and Kankainen, A. and Canete, L. and Block, M and Cox, D. M. and Eronen, Jussi T. and Fahlander, C. and Forsberg, U. and Gerl, J and Golubev, P. and Hakala, J and Jokinen, A and Kolhinen, V. S. and Koponen, J. and Lalovic, Natasa and Lorenz, Ch and Moore, I. D. and Papadakis, P. and Reinikainen, J. and Rinta-Antila, S. and Rudolph, D. and Sarmiento, L. G. and Voss, Anne and Äystö, J.}},
  issn         = {{0954-3899}},
  keywords     = {{isobaric multiplet; mass measurement; Penning trap}},
  language     = {{eng}},
  month        = {{04}},
  number       = {{6}},
  publisher    = {{IOP Publishing}},
  series       = {{Journal of Physics G: Nuclear and Particle Physics}},
  title        = {{High-precision mass measurements for the isobaric multiplet mass equation at <i>A</i> = 52}},
  url          = {{http://dx.doi.org/10.1088/1361-6471/aa67ae}},
  doi          = {{10.1088/1361-6471/aa67ae}},
  volume       = {{44}},
  year         = {{2017}},
}