Spectroscopy of neutron-rich nuclei populated through binary heavy-ion collisions

Journal Article · Mon May 04 04:00:00 EDT 2009 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3141677· OSTI ID:21304802

Lunardi, S ^[1]

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1. Dipartimento di Fisica dell' Universita and INFN Sezione di Padova, Padova (Italy)

Neutron-rich nuclei from A = 50 to A = 80 have been studied through multi-nucleon transfer reactions by bombarding {sup 208}Pb and {sup 238}U targets with beams of {sup 48}Ca, {sup 64}Ni, {sup 70}Zn and {sup 82}Se. The gamma-array CLARA coupled to the large-acceptance magnetic spectrometer PRISMA gave unambiguous identification of prompt {gamma} rays belonging to each nucleus. The existence of the N = 32 sub-shell closure has been corroborated through the study of odd V isotopes, whereas a sizable gap at N = 34 has been evidenced from the spectroscopy of {sup 51}Ca and {sup 52}Sc. The evolution of the N = 50 shell closure far from stability has been studied down to Z = 31. With the {sup 48}Ca beam we have applied for the first time the Recoil Distance Dopple Shift technique to measure lifetimes of neutron-rich nuclei populated in multi-nucleon transfer reactions. Effective charges in the fp shell above {sup 48}Ca have been derived. The first implementation of the tracking array AGATA (the so called 'Demon-strator') will be soon coupled to the PRISMA spectrometer at Legnaro. The future prospects with the use of the Demonstrator are also presented.

• OSTI ID: 21304802
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 1120; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
CALCIUM 48 REACTIONS
DSA METHOD
EFFECTIVE CHARGE
GAMMA SPECTROSCOPY
LEAD 208 TARGET
LIFETIME
MULTI-NUCLEON TRANSFER REACTIONS
NEUTRON-RICH ISOTOPES
NICKEL 64 REACTIONS
RECOILS
SELENIUM 82 REACTIONS
SHELL MODELS
URANIUM 238 TARGET
ZINC 70 REACTIONS