"Beta-Decay of 104,106Y; the structure of 104,106Zr"
Thamer Alharbi, Department of Physics, University of Surrey, Guildford, GU2 7XH, UK
(id #131)
Seminar: NoPoster: Yes
Invited talk: No
Beta-Decay of 104,106Y; the structure of 104,106Zr
T. Alharbi,1 P.H.Regan,1 Zs.Podolyák,1 A.M.Bruce,2 A. M. D. Bacelar,2
S. Pietri,3 M. Gorska,3 J. Gerl,3 H-J. Wollersheim,3 P. Boutachkov,3 C. Domingo-Prado,3 for the RISING collaboration
1Department of Physics, University of Surrey, Guildford GU2 7XH, United Kingdom
2School of Engineering, University of Brighton, Brighton BN2 4GJ, United Kingdom
3GSI, Darmstadt, Germany
Abstract
The use of projectile fragmentation reactions has become an effective tool for the population of exotic nuclei. One of its advantages is the relatively high probability to populate isomeric states in exotic nuclei. Facilities such as the GSI laboratory, Darmstadt, Germany use high energy E/A=0.5-1.5 GeV beams to induce such studies.
The nuclei of interest were produced using a projectile-fission fragmentation of a 1 GeV/nucleon 238U impinging on a 2 g/cm2 9Be target and an FRS efficiency of 2% at the SIS/FRS facility at GSI laboratory Darmstadt, Germany. The GSI fragment separator, operated in monochromatic mode, was used to select and separate the nuclei of interest preceding implantation in an active stopper at the final focal plane. The stopper is surrounded by fifteen (HPGe) detectors (RISING array) and used to measure the gamma-rays.
The aim was to use the beta decay of the neutron-rich isotopes 104,106Y to study the level schemes of the even-even nuclei 104,106Zr. The particular focus is to measure the non-yrast structure in 104Zr and to observe levels in 106Zr for the first time. These nuclei are important to measure since this region is one where prolate and oblate minima are predicted to compete.
In the present contribution, experimental details and preliminary results will be given.
T. Alharbi,1 P.H.Regan,1 Zs.Podolyák,1 A.M.Bruce,2 A. M. D. Bacelar,2
S. Pietri,3 M. Gorska,3 J. Gerl,3 H-J. Wollersheim,3 P. Boutachkov,3 C. Domingo-Prado,3 for the RISING collaboration
1Department of Physics, University of Surrey, Guildford GU2 7XH, United Kingdom
2School of Engineering, University of Brighton, Brighton BN2 4GJ, United Kingdom
3GSI, Darmstadt, Germany
Abstract
The use of projectile fragmentation reactions has become an effective tool for the population of exotic nuclei. One of its advantages is the relatively high probability to populate isomeric states in exotic nuclei. Facilities such as the GSI laboratory, Darmstadt, Germany use high energy E/A=0.5-1.5 GeV beams to induce such studies.
The nuclei of interest were produced using a projectile-fission fragmentation of a 1 GeV/nucleon 238U impinging on a 2 g/cm2 9Be target and an FRS efficiency of 2% at the SIS/FRS facility at GSI laboratory Darmstadt, Germany. The GSI fragment separator, operated in monochromatic mode, was used to select and separate the nuclei of interest preceding implantation in an active stopper at the final focal plane. The stopper is surrounded by fifteen (HPGe) detectors (RISING array) and used to measure the gamma-rays.
The aim was to use the beta decay of the neutron-rich isotopes 104,106Y to study the level schemes of the even-even nuclei 104,106Zr. The particular focus is to measure the non-yrast structure in 104Zr and to observe levels in 106Zr for the first time. These nuclei are important to measure since this region is one where prolate and oblate minima are predicted to compete.
In the present contribution, experimental details and preliminary results will be given.
