ISOLDE Workshop and Users meeting 2013

Session

Structure Medium Mass Nuclei

26 Nov 2013, 14:00

The Globe (CERN)

Conveners

Structure Medium Mass Nuclei

• Piet Van Duppen (Katholieke Universiteit Leuven (BE))

51. The GRETINA science campaign at NSCL and FRIB status

Alexandra Gade

26/11/2013, 14:00

The US gamma-ray tracking array GRETINA just completed its first science campaign at the NSCL(MSU). An overview will be presented, showing selected results covering broad topics from nuclear structure physics and nuclear astrophysics. A brief summary of the FRIB status will be given.

39. Overview of Miniball results combined with decay spectroscopy studies for middle-mass nuclei

Elisa Rapisarda (CERN)

26/11/2013, 14:30

Invited

Studying the region around the doubly magic nucleus 78Ni with the Z=28 and N=50 shell closures is particularly interesting for testing the validity of the contemporary nuclear models and for unraveling new aspects of the interactions used in these models. Especially the evolution of single-particle and collective phenomena between the harmonic oscillator shell closure at N=40 and the shell...

14. Collectivity of 4+ states in heavy Zn isotopes

Magdalena Zielinska (CEA/IRFU,Centre d'etude de Saclay Gif-sur-Yvette (FR))

26/11/2013, 15:00

Submitted

Shell evolution in the vicinity of 68Ni has recently attracted many theoretical and experimental investigations. By now it has been clearly established that the presumed subshell closure at N=40 is not very pronounced. While the intruder character of the 1g9/2 and 2d5/2 neutron orbital induces collectivity by pair excitations from the fp shell into the g9/2 orbital, the parity change hinders...

28. Multiple Coulomb Excitation of 72Zn with MINIBALL at ISOLDE using a new Coulex silicon geometry

Mrs Stefanie Hellgartner (Technical University of Munich)

26/11/2013, 15:20

Submitted

The standard Coulomb Excitation setup at MINIBALL uses a forward CD at fixed distance to the target, only. We built a new setup, based on the T-REX design, to allow a variable distance of the forward CD as well as to cover backward angles in the laboratory frame. This allows to use high intense beams and gives better insight into multiple coulomb excitation studies. Multiple coulomb excitation...

33. Fast timing studies of collective and single-particle features near 78Ni

Prof. Henryk Mach (NCBJ, Warsaw, Poland)

26/11/2013, 15:40

Submitted

There is a strong interest in the properties of the exotic doubly magic 78Ni. 78Ni itself is at the edge of the experimental reach, thus most of the experiments concentrate on its very close neighbors located North and North-East, as well as South-West, which can be studied in some detail. This presentation provides an overview of the current status of the fast timing experiments IS441 and...

7. Search for tetrahedral states in Yb nuclei with N~90 through Coulomb excitation using HIE-ISOLDE and Miniball

Prof. Costel Petrache (University Paris Sud and CSNSM, CNRS/IN2P3, Orsay, France)

26/11/2013, 16:00

Submitted

The 160Yb nucleus (Z=70 and N=90) is double-magic with respect to the predicted Tetrahedral symmetry. Even if already studied in heavy-ion induced reactions, neutron spallation and β+-decay, the non-yrast low-spin states and their properties are not well known. In particular it is not clear if a 3- state exists in 160Yb, which could belong to the tetrahedral band. We propose to study the...