ISOLDE Workshop and Users meeting 2005/2006

Session

Nuclear Physics I

7 Feb 2006, 11:00

Council Chamber, 503/1-001 (CERN)

10. Nuclear level densities

Prof. Magne Guttormsen (Department of Physics, University of Oslo, Norway)

07/02/2006, 11:00

Atomic nuclei at low excitation energy are characterized by the motion of pairs of nucleons, known as Cooper pairs, moving in time reversed orbitals. This picture becomes much more complicated as Cooper pairs are broken by collective (Coriolis force) or intrinsic (temperature) excitations. In this talk we will focus on the statistical properties of the system as function of the number of...

30. Study of the neutron-rich tellurium isotopes by laser spectroscopy

Brigitte Roussiere (Institut de Physique Nucléaire)

07/02/2006, 11:30

Laser spectroscopy gives access to fundamental properties of the ground and rather long-lived isomeric states such as the change in the mean square charge radius ( ) and the nuclear moments. Measurements on tellurium isotopes (Z = 52) can provide reliable information on the shape of nuclei, structure of states, and effects of dynamics. Indeed from A = 115 to 133, all the odd-A Te...

46. Moments and spins of neutron rich Mg isotopes: towards 33Mg

Deyan D. Yordanov (IKS)

07/02/2006, 11:55

Our research on the neutron rich side of the Mg chain will be presented, which is of interest in the frame of understanding nuclear structure in the region of the “Island of inversion”. Nuclei around 32Mg exhibit properties in disagreement with the standard shell model. Advanced modeling of the region requires experimental data, crucial parts of which are the nuclear moments data. The...

6. Resonance laser spectroscopic studies of neutron deficient rare earth isotopes at the IRIS facility

Anatoly Barzakh (Petersburg Nuclear Physics Institute)

07/02/2006, 12:15

The laser ion source has been used for the study of the isotope shifts of neutron deficient Eu and Gd isotopes at the IRIS facility. The region of the applicability of the method by using the gamma- and beta- radiation detection has been extended. The isotope shifts of the europium optical line 576.520 nm for 137–139, 141, 142m, 143, 144 Eu and the gadolinium optical line 569.622 nm...

9. Multiple particle break-up in the 11Li beta-decay

Mr Miguel Madurga Flores (Consejo Superior de Investigaciones Cientificas (CSIC))

07/02/2006, 12:35

Light nuclei near the neutron drip-line have been studied intensively since the discovery of halos in this region. The complexity of their decays represent a great task for both theoretical and experimental nuclear physics. The 11Li, the nucleus studied in this work, exhibit a complex beta decay. The high Q-beta value (20.6 MeV) and the low nucleon binding energy in the neighbour...