Phys. Rev. C 80, 044318 (2009) [7 pages]New mass measurement of 6Li and ppb-level systematic studies of the Penning trap mass spectrometer TITANReceived 6 October 2008; revised 27 August 2009; published 15 October 2009 The frequency ratio of 6Li to 7Li was measured using the TITAN Penning trap mass spectrometer. This measurement resolves a 16-ppb discrepancy between the 6Li mass of 6.015 122 795(16) u from the Atomic Mass Evaluation 2003 (AME03), which is based on a measurement by JILATRAP, and the more recent measurement of 6.015 122 890(40) u by SMILETRAP. Our measurement agrees with SMILETRAP and a more precise mass value for 6Li of 6.015 122 889(26) u is presented along with systematic evaluations of the measurement uncertainties. This result makes 6Li a solid anchor point for future mass measurements on highly charged ions with m/q~6. © 2009 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevC.80.044318
DOI:
10.1103/PhysRevC.80.044318
PACS:
21.10.Dr, 07.75.+h, 32.10.Bi, 37.10.Ty
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