Spectroscopy of neutron-rich nuclei

Research Staff:

Rafał Broda (leader), Bogdan Fornal, Wojciech Królas, Tomasz Pawłat, Jacek Wrzesiński

Methods:

Deep Inelastic Reactions, germanium multidetector gamma-ray arrays: GAMMASPHERE, GASP

Main research topics:

• a) Neighborhood of doubly magic nucleus ²⁰⁸Pb:
  yrast structures involving particle-hole excitations across the neutron shell gap have been located in ²⁰⁸Pb , ²⁰⁸Bi and ²¹⁰Bi nuclei; new isomers as well as yrast states, involving the octupole excitation coupled to the single particle states, have been identified in neutron-rich Tl isotopes.
• b) Vicinity of doubly magic nucleus ⁴⁸Ca:
  yrast excitations in neutron-rich Ti isotopes, with A ranging from 51 to 54, have been located - on the basis of these findings the shell closure at N=32 in neutron-rich nuclei has been confirmed; moderately high spin states have been identified in nuclei with one valence particle or hole with respect to the ⁴⁸Ca core