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Paper detail

Laser Spectroscopic Determination of the 6He Nuclear Charge Radius

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 2 3S1 - 3 3P2 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.

preprint2004arXivOpen access
L. -B. WangP. MuellerK. BaileyG. W. F. DrakeJ. P. GreeneD. HendersonR. J. HoltR. V. F. JanssensC. L. JiangZ. -T. LuT. P. O'ConnorR. C. PardoK. E. RehmJ. P. SchifferX. D. Tang
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Open access15 authors1 topic
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L. -B. WangP. MuellerK. BaileyG. W. F. DrakeJ. P. GreeneD. HendersonR. J. HoltR. V. F. JanssensC. L. JiangZ. -T. LuT. P. O'ConnorR. C. PardoK. E. RehmJ. P. SchifferX. D. Tang

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