Phys. Rev. Lett. 100, 132501 (2008) [4 pages]Discovery of a Nuclear Isomer in 65Fe with PenningTrap Mass SpectrometrySee Also: Erratum Received 25 July 2007; revised 10 January 2008; published 1 April 2008 A new long-lived isomeric state in 65Fe has been discoveredwith Penning trap mass spectrometry and high-precision mass measurements ofthe neutron-rich isotopes 63–65Fe and 64–66Co have been performed with the Low-EnergyBeam and Ion Trap Facility at the NSCL. For the new isomer in 65Fe an excitationenergy of 402(5) keV has been determined from the measured massdifference between the isomeric and ground states. The mass uncertaintiesof all isotopes have been reduced by a factor of 10–100 compared toprevious results. In the case of 64Co the previousmass value was found to deviate by about 5 standard deviations from the newmeasurement. © 2008 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.100.132501
DOI:
10.1103/PhysRevLett.100.132501
PACS:
21.10.Dr, 07.75.+h, 27.50.+e
See AlsoErratum: M. Block, C. Bachelet, G. Bollen, M. Facina, C. M. Folden, C. Guénaut, A. A. Kwiatkowski, D. J. Morrissey, G. K. Pang, A. Prinke, R. Ringle, J. Savory, P. Schury, and S. Schwarz, Erratum: Discovery of a Nuclear Isomer in 65Fe with Penning Trap Mass Spectrometry [Phys. Rev. Lett. 100, 132501 (2008)], Phys. Rev. Lett. 101, 059901 (2008). |
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