Lifetime measurements of excited states in neutron-rich Ar-44, Ar-46 populated via a multinucleon transfer reaction - INSPIRE

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Lifetime measurements of excited states in neutron-rich Ar-44, Ar-46 populated via a multinucleon transfer reaction

D. Mengoni
(
- Padua U. and
- INFN, Padua
)
,
J.J. Valiente-Dobon
(
- INFN, Legnaro
)
,
A. Gadea
(
- INFN, Legnaro and
- Valencia U.
)
,
S. Lunardi
(
- Padua U. and
- INFN, Padua
)
,
S.M. Lenzi
(
- Padua U. and
- INFN, Padua
)

Aug, 2010

7 pages

Published in:

Phys.Rev.C 82 (2010) 024308

DOI:

10.1103/PhysRevC.82.024308

View in:

Nuclear Science References

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Abstract: (APS)

Lifetimes of low-lying excited states of the neutron-rich Ar44,46 nuclei, populated via multinucleon transfer reactions, are measured by means of the differential recoil distance Doppler shift method. The extracted electromagnetic transition probabilities are compared with previous intermediate-energy Coulomb-excitation measurements and with large-scale shell-model calculations. The increase in the deduced B(E2;2+→0+) transition probability from Ar44 to the closed-shell nucleus Ar46 contradicts the earlier results of Coulomb-excitation experiments. Shell-model calculations using different effective interactions agree with the new measured values.

21.60.Cs
21.10.Tg
23.20.-g
27.40.+z

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Figures(0)

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