Laser Spectroscopic Determination of the 6He Nuclear Charge Radius
Nuclear Experiment
2011-08-11 v1
Abstract
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.
Keywords
Cite
@article{arxiv.nucl-ex/0408008,
title = {Laser Spectroscopic Determination of the 6He Nuclear Charge Radius},
author = {L. -B. Wang and P. Mueller and K. Bailey and G. W. F. Drake and J. P. Greene and D. Henderson and R. J. Holt and R. V. F. Janssens and C. L. Jiang and Z. -T. Lu and T. P. O'Connor and R. C. Pardo and K. E. Rehm and J. P. Schiffer and X. D. Tang},
journal= {arXiv preprint arXiv:nucl-ex/0408008},
year = {2011}
}