Swedish Nuclear Physicist's Meeting 2021

[zoom]Proton decay study of the exotic isotopes 116,117La

28 Oct 2021, 11:00

20m

Department of Physics, GD-Lecture Hall (Chalmers University of Technology)

Contributed Talk Thursday

Speaker

Wei Zhang (KTH)

Description

Measurements of proton decay properties provide valuable spectroscopic information on the structure of nuclei far from stability. In this presentation, I will report the results of our decay-spectroscopy study about the extremely neutron-deficient Lanthanum isotopes ${}^{116,117}$La. These nuclei were produced at the Accelerator Laboratory of the University of Jyväskylä by employing fusion-evaporation reactions, using a ${}^{64}$Zn beam at 330 MeV to bombard a ${}^{58}$Ni target. In this experiment, the fusion products were separated in flight through the newly commissioned recoil mass separator MARA and implanted into a double-sided silicon strip detector. The proton decay of the ground state of ${}^{117}$La was remeasured and found to be consistent with previous studies. In addition, we observed a new proton decay line, most likely from the ground state of ${}^{116}$La.