Publication: Nuclear charge radius of _8He
All || By Area || By Year| Title | Nuclear charge radius of _8He | Authors/Editors* | P. Mueller, I. A. Sulai, A. C. C. Villari, J. A. Alcántar-Núñez, R. Alves-Conde, K. Bailey, G. W. F. drake, M. Dubois, C. Eléon, G. Gaubert, R. J. Holt, R. V. F. Janssens, N. Lecesne, Z. T. Lu, T. P. O'Connor, M. G. Saint-Laurent, J. P. Schiffer, J. C. Thomas, L. B. Wang |
|---|---|
| Where published* | Phys. Rev. Lett. |
| How published* | Journal |
| Year* | 2008 |
| Volume | 99 |
| Number | |
| Pages | 252501 (4 pages) |
| Publisher | |
| Keywords | |
| Link | |
| Abstract |
The root-mean-square (rms) nuclear charge radius of He-8, the most neutron-rich of all particle-stable nuclei, has been determined for the first time to be 1.93(3) fm. In addition, the rms charge radius of He-6 was measured to be 2.068(11) fm, in excellent agreement with a previous result. The significant reduction in charge radius from He-6 to He-8 is an indication of the change in the correlations of the excess neutrons and is consistent with the He-8 neutron halo structure. The experiment was based on laser spectroscopy of individual helium atoms cooled and confined in a magneto-optical trap. Charge radii were extracted from the measured isotope shifts with the help of precision atomic theory calculations. |
Back to page 51 of list