version française rss feed
HAL : in2p3-00751279, version 1

Fiche détaillée  Récupérer au format
5th International Conference on Trapped Charged Particles and Fundamental Physics (TCP 2010), Saariselkä : Finlande (2010)
Precision mass measurements of neutron halo nuclei using the TITAN Penning trap
M. Brodeur, T. Brunner, S. Ettenauer, A. T. Gallant, V. V. Simon, M. Smith, A. Lapierre, E. Mané, R. Ringle, V. L. Ryjkov, S. Bacca, P. Delheij, D. Lunney1, M. Pearson, J. Dilling

Precise atomic mass determinations play a key role in various fields of physics, including nuclear physics, testing of fundamental symmetries and constants and atomic physics. Recently, the TITAN Penning trap measured the masses of several neutron halos. These exotic systems have an extended, diluted, matter distribution that can be modelled by considering a nuclear core surrounded by a halo formed by one or more of loosely bound neutrons. Combined with laser spectroscopy measurements of isotopic shifts precise masses can be used to obtain reliable charge radii and two-neutron-seperation energies for these halo nuclei. It is shown that these results can be used as stringent tests of nuclear models and potentials providing an important metric for our understanding of the interactions in all nuclei.
1 :  CSNSM - Centre de Spectrométrie Nucléaire et de Spectrométrie de Masse
Physique/Physique Nucléaire Expérimentale
Halo nuclei * Penning trap * Mass measurement * Nuclear theory