corner
corner
APS » Journals » Phys. Rev. Lett. » Volume 93 » Issue 14
< Previous Article | Next Article >

Phys. Rev. Lett. 93, 142501 (2004) [4 pages]

Laser Spectroscopic Determination of the 6He Nuclear Charge Radius

Download: PDF (216 kB) Buy this article Export: BibTeX or EndNote (RIS)

L.-B. Wang1,2, P. Mueller1, K. Bailey1, G. W. F. Drake3, J. P. Greene1, D. Henderson1, R. J. Holt1, R. V. F. Janssens1, C. L. Jiang1, Z.-T. Lu1,4,*, T. P. O'Connor1, R. C. Pardo1, K. E. Rehm1,†, J. P. Schiffer1,4, and X. D. Tang1
1Physics Division, Argonne National Laboratory, Argonne, Illinois 60439, USA
2Physics Department, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA
3Department of Physics, University of Windsor, Windsor, Ontario, Canada N9B 3P4
4The Enrico Fermi Institute and Department of Physics, The University of Chicago, Chicago, Illinois 60637, USA

Received 14 June 2004; published 27 September 2004

We have performed precision laser spectroscopy on individual 6He (t1/2=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 23S1-33P2 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.

© 2004 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.93.142501
DOI:
10.1103/PhysRevLett.93.142501
PACS:
21.10.Ft, 21.60.–n, 27.20.+n, 31.30.Gs

*Email: lu@anl.gov

†Email: rehm@phy.anl.gov

 
< Previous Article | Next Article >