High-precision masses of neutron-deficient rubidium isotopes using a Penning trap mass spectrometer - IN2P3 - Institut national de physique nucléaire et de physique des particules Access content directly
Journal Articles Physical Review C Year : 2007

High-precision masses of neutron-deficient rubidium isotopes using a Penning trap mass spectrometer

A. Kellerbauer
  • Function : Author
D. Beck
  • Function : Author
K. Blaum
G. Bollen
  • Function : Author
F. Herfurth
  • Function : Author
A. Herlert
  • Function : Author
H.-J. Kluge
  • Function : Author
S. Schwarz
  • Function : Author
L. Schweikhard
  • Function : Author
C. Weber
  • Function : Author
C. Yazidjian
  • Function : Author

Abstract

The atomic masses of the neutron-deficient radioactive rubidium isotopes $^{74-77,79,80,83}$Rb have been measured with the Penning trap mass spectrometer ISOLTRAP. Using the time-of-flight cyclotron resonance technique, relative mass uncertainties ranging from 1.6×10$^{-8}$ to 5.6×10$^{-8}$ were achieved. In all cases, the mass precision was significantly improved as compared with the prior Atomic-Mass Evaluation; no significant deviations from the literature values were observed. The exotic nuclide $^{74}$Rb, with a half-life of only 65 ms, is the shortest-lived nuclide on which a high-precision mass measurement in a Penning trap has been carried out. The significance of these measurements for a check of the conserved-vector-current hypothesis of the weak interaction and the unitarity of the Cabibbo-Kobayashi-Maskawa matrix is discussed.

Dates and versions

in2p3-00184527 , version 1 (31-10-2007)

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A. Kellerbauer, G. Audi, D. Beck, K. Blaum, G. Bollen, et al.. High-precision masses of neutron-deficient rubidium isotopes using a Penning trap mass spectrometer. Physical Review C, 2007, 76, pp.045504. ⟨10.1103/PhysRevC.76.045504⟩. ⟨in2p3-00184527⟩
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