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29 March 2024
 
  » pubmed » pmid15524784

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Laser spectroscopic determination of the 6He nuclear charge radius
L-B Wang ; P Mueller ; K Bailey ; G W F Drake ; J P Greene ; D Henderson ; R J Holt ; R V F Janssens ; C L Jiang ; Z-T Lu ; T P O’Connor ; R C Pardo ; K E Rehm ; J P Schiffer ; X D Tang ;
Date 1 Oct 2004
Journal Phys Rev Lett, 93 (14), 142501
AbstractWe have performed precision laser spectroscopy on individual 6He (t(1/2)=0.8 s) atoms confined and cooled in a magneto-optical trap, and measured the isotope shift between 6He and 4He to be 43 194.772+/-0.056 MHz for the 2(3)S1-3(3)P2 transition. Based on this measurement and atomic theory, the nuclear charge radius of 6He is determined for the first time in a method independent of nuclear models to be 2.054+/-0.014 fm. The result is compared with the values predicted by a number of nuclear structure calculations and tests their ability to characterize this loosely bound halo nucleus.
Source PubMed, pmid15524784
Other source [GID 281270] nucl-ex/0408008
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