Precision ground state mass of Be12 and an isobaric multiplet mass equation (IMME) extrapolation for 2+ and 02+ states in the T=2, A=12 multiplet

S. Ettenauer; M. Brodeur; T. Brunner; A. T. Gallant; A. Lapierre; R. Ringle; M. R. Pearson; P. Delheij; J. Lassen; D. Lunney; J. Dilling

doi:10.1103/PhysRevC.81.024314

Precision ground state mass of Be12 and an isobaric multiplet mass equation (IMME) extrapolation for 2⁺ and 02+ states in the T=2, A=12 multiplet

S. Ettenauer, M. Brodeur, T. Brunner, A. T. Gallant, A. Lapierre, R. Ringle, M. R. Pearson, P. Delheij, J. Lassen, D. Lunney, J. Dilling

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Abstract

We report the mass measurement of the short-lived Be12 nuclide (T1/2=21.5 ms) performed using the Penning trap mass spectrometer TITAN at TRIUMF. Our mass excess value of 25 078.0(2.1) keV is in agreement with previous measurements, but is a factor of 7 more precise than the Atomic Mass Evaluation of 2003. To address an unresolved discussion on the spin assignment of isospin T=2 states in C12 and O12, we reevaluate the isobaric mass multiplet equation for the lowest lying T=2 multiplet in the A=12 system and use the extracted parameters to extrapolate from the known excited 2⁺ and 0⁺ states in Be12. Though this analysis favors the second known T=2 state in C12 to be 2 ⁺, 0⁺ cannot be excluded.

Original language	English
Article number	024314
Journal	Physical Review C - Nuclear Physics
Volume	81
Issue number	2
DOIs	https://doi.org/10.1103/PhysRevC.81.024314
State	Published - Feb 17 2010
Externally published	Yes

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Ettenauer, S., Brodeur, M., Brunner, T., Gallant, A. T., Lapierre, A., Ringle, R., Pearson, M. R., Delheij, P., Lassen, J., Lunney, D., & Dilling, J. (2010). Precision ground state mass of Be12 and an isobaric multiplet mass equation (IMME) extrapolation for 2⁺ and 02+ states in the T=2, A=12 multiplet. Physical Review C - Nuclear Physics, 81(2), Article 024314. https://doi.org/10.1103/PhysRevC.81.024314

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abstract = "We report the mass measurement of the short-lived Be12 nuclide (T1/2=21.5 ms) performed using the Penning trap mass spectrometer TITAN at TRIUMF. Our mass excess value of 25 078.0(2.1) keV is in agreement with previous measurements, but is a factor of 7 more precise than the Atomic Mass Evaluation of 2003. To address an unresolved discussion on the spin assignment of isospin T=2 states in C12 and O12, we reevaluate the isobaric mass multiplet equation for the lowest lying T=2 multiplet in the A=12 system and use the extracted parameters to extrapolate from the known excited 2+ and 0+ states in Be12. Though this analysis favors the second known T=2 state in C12 to be 2 +, 0+ cannot be excluded.",

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Ettenauer, S, Brodeur, M, Brunner, T, Gallant, AT, Lapierre, A, Ringle, R, Pearson, MR, Delheij, P, Lassen, J, Lunney, D & Dilling, J 2010, 'Precision ground state mass of Be12 and an isobaric multiplet mass equation (IMME) extrapolation for 2⁺ and 02+ states in the T=2, A=12 multiplet', Physical Review C - Nuclear Physics, vol. 81, no. 2, 024314. https://doi.org/10.1103/PhysRevC.81.024314

TY - JOUR

T1 - Precision ground state mass of Be12 and an isobaric multiplet mass equation (IMME) extrapolation for 2+ and 02+ states in the T=2, A=12 multiplet

AU - Ettenauer, S.

AU - Brodeur, M.

AU - Brunner, T.

AU - Gallant, A. T.

AU - Lapierre, A.

AU - Ringle, R.

AU - Pearson, M. R.

AU - Delheij, P.

AU - Lassen, J.

AU - Lunney, D.

AU - Dilling, J.

PY - 2010/2/17

Y1 - 2010/2/17

N2 - We report the mass measurement of the short-lived Be12 nuclide (T1/2=21.5 ms) performed using the Penning trap mass spectrometer TITAN at TRIUMF. Our mass excess value of 25 078.0(2.1) keV is in agreement with previous measurements, but is a factor of 7 more precise than the Atomic Mass Evaluation of 2003. To address an unresolved discussion on the spin assignment of isospin T=2 states in C12 and O12, we reevaluate the isobaric mass multiplet equation for the lowest lying T=2 multiplet in the A=12 system and use the extracted parameters to extrapolate from the known excited 2+ and 0+ states in Be12. Though this analysis favors the second known T=2 state in C12 to be 2 +, 0+ cannot be excluded.

AB - We report the mass measurement of the short-lived Be12 nuclide (T1/2=21.5 ms) performed using the Penning trap mass spectrometer TITAN at TRIUMF. Our mass excess value of 25 078.0(2.1) keV is in agreement with previous measurements, but is a factor of 7 more precise than the Atomic Mass Evaluation of 2003. To address an unresolved discussion on the spin assignment of isospin T=2 states in C12 and O12, we reevaluate the isobaric mass multiplet equation for the lowest lying T=2 multiplet in the A=12 system and use the extracted parameters to extrapolate from the known excited 2+ and 0+ states in Be12. Though this analysis favors the second known T=2 state in C12 to be 2 +, 0+ cannot be excluded.

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Precision ground state mass of Be12 and an isobaric multiplet mass equation (IMME) extrapolation for 2⁺ and 02+ states in the T=2, A=12 multiplet

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