ISOLDE Workshop and Users meeting 2012

Session

Medium nuclei I

17 Dec 2012, 16:25

503/1-001 - Council Chamber (CERN)

Conveners

Medium nuclei I

• Peter Reiter (University Cologne, Nuclear Physics Institut)

59. Recent Physics results of RIKEN RIBF and Future Prospects

Tohru Motobayashi (RIKEN Nishina Center)

17/12/2012, 16:25

Invited

RIKEN has provided fast radioactive isotope (RI) beams since 1990. The new facility of RIKEN RIBF (RI Beam Factory) started operation in the end of 2006, and various experimental studies using its high-intensity RI beams with energies around 200 MeV/nucleon have been performed. They include production of many new neutron-rich isotopes, lifetime measurements for several r-process nuclei, and...

14. Single-particle states in 79Zn studied via single-neutron transfer

Riccardo Orlandi (Katholieke Universiteit Leuven (BE))

17/12/2012, 16:55

Submitted

Neutron-rich nuclei with magic numbers of neutrons and protons are reference points to map and understand the reorganization of the shell structure away from the line of beta stability. The region of nuclei near $^{78}$Ni, the doubly-magic nucleus with the largest N/Z ratio, is the focus of considerable experimental and theoretical interest. The extent of the magicity of $^{78}$Ni is still...

11. Probing the semi-magicity of 68Ni via the 3H(66Ni,68Ni)p and 2H(66Ni,67Ni)p transfer reactions in inverse kinematics

Jytte Elseviers (K)

17/12/2012, 17:15

Submitted

The region around the nucleus 68Ni, with a shell closure at Z = 28 and a sub-shell closure at N = 40, has drawn considerable interest over the past decades. 68Ni has properties that are typical of a doubly-magic nucleus, such as a high excitation energy and low B(E2:2+-0+) transition probability for the first excited 2+ level [1-3] and a 0+ level as the first excited state [4]. However, it...

21. MAGNETIC MOMENT MEASUREMENT IN 72ZN USING THE TRANSIENT FIELD TECHNIQUE AND COULOMB EXCITATON IN INVERSE KINEMATICS

Mr Andres Illana Sison (Consejo Superior de Investigaciones Cientificas (CSIC) (ES))

17/12/2012, 17:25

Submitted

Nuclear magnetic moments are sensitive probes of the single particle properties of the nuclear wave function. The magnetic moment operator, with its explicit dependence on protons or neutrons involved in the configuration of the state and on their angular momenta, serves as a stringent test of the proposed main configuration of the nuclear state, as well as of other admixtures. It is,...

34. First results from IS-510: Transfer reactions and Coulomb excitation with T-REX in the 68Ni region

Stefanie Klupp (Technische Universitaet Muenchen)

17/12/2012, 17:35

Submitted

The microscopic details concerning the assumed magicity of the 68Ni nucleus are not yet fully understood. Due to the parity change between fp orbitals and the g9/2 orbital, a small gap between these can lead to a high-lying first excited state in 68Ni. This underlying subshell structure seems also responsible for the unusual behavior of excited 0+ states in neighboring even-even nuclei. Our...

44. Beta decay of 82Zn

Ioana Gheorghe (H. Hulubei National Institute for Physics and Nuclear Engineering)

17/12/2012, 17:45

Submitted

The Beta decay of 82Zn has been studied at ISOLDE, CERN using a fast timing experimental setup, which included a thin NE111A plastic beta detector, two HPGe gamma detectors and two LaBr3(Ce) detectors all positioned in a close geometry. A new value for the lifetime of the beta decaying g.s. of 82Zn was obtained and the -n branching ratio was measured for the first time. Tentative level...