A new mass value for 7Li

Abstract

A high-accuracy mass measurement of 7Li was performed with the Smiletrap Penning trap mass spectrometer via a cyclotron frequency comparison of Li3+ and H2+. A new atomic mass value of 7Li has been determined to be 7.016,003,425,6,(45)u with a relative uncertainty of 0.63 ppb. It has uncovered a discrepancy as large as 14 sigma (1.1 micro u) deviation relative to the literature value given in the Atomic-Mass Evaluation AME 2003. The importance of the improved and revised 7Li mass value, for calibration purposes in nuclear-charge radii and atomic mass measurements of the neutron halos 9Li and 11Li, is discussed.

4 pages, 3 figures

References in corpus (1)

• Nuclear Charge Radius of Li-9, Li-11: Halo Neutron: the influence of Halo Neutrons

Cited by in corpus (10)

• First Penning-trap mass measurement in the millisecond half-life range: the exotic halo nucleus 11Li
• HITRAP: A facility at GSI for highly charged ions
• Relativistic, QED, and finite nuclear mass corrections for low-lying states of Li and Be${}^{+}$
• Isotope Shift Measurements of Stable and Short-Lived Lithium Isotopes for Nuclear Charge Radii Determination
• The trap design of PENTATRAP
• Fine and hyperfine splitting of the 2P state in Li and Be${}^{+}$
• Elucidation of the anomalous A = 9 isospin quartet behaviour
• Penning-Trap Mass Measurement of Helium-4
• Proposal for the determination of nuclear masses by high-precision spectroscopy of Rydberg states
• Atomic physics experiments with trapped and cooled highly charged ions