Lifetime measurements of excited states in neutron-rich Ar44,46 populated via a multinucleon transfer reaction

D. Mengoni, J. J. Valiente-Dobón, A. Gadea, S. Lunardi, S. M. Lenzi, R. Broda, A. Dewald, T. Pissulla, L. J. Angus, S. Aydin, D. Bazzacco, G. Benzoni, P. G. Bizzeti, A. M. Bizzeti-Sona, P. Boutachkov, L. Corradi, F. Crespi, G. De Angelis, E. Farnea, E. FiorettoA. Goergen, M. Gorska, A. Gottardo, E. Grodner, A. M. Howard, W. Królas, S. Leoni, P. Mason, D. Montanari, G. Montagnoli, D. R. Napoli, A. Obertelli, R. Orlandi, T. Pawłat, G. Pollarolo, F. Recchia, A. Algora, B. Rubio, E. Sahin, F. Scarlassara, R. Silvestri, J. F. Smith, A. M. Stefanini, D. Steppenbeck, S. Szilner, C. A. Ur, P. T. Wady, J. Wrzesiński

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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.

Original languageEnglish
Article number024308
JournalPhysical Review C - Nuclear Physics
Issue number2
Publication statusPublished - Aug 9 2010


ASJC Scopus subject areas

  • Nuclear and High Energy Physics

Cite this

Mengoni, D., Valiente-Dobón, J. J., Gadea, A., Lunardi, S., Lenzi, S. M., Broda, R., Dewald, A., Pissulla, T., Angus, L. J., Aydin, S., Bazzacco, D., Benzoni, G., Bizzeti, P. G., Bizzeti-Sona, A. M., Boutachkov, P., Corradi, L., Crespi, F., De Angelis, G., Farnea, E., ... Wrzesiński, J. (2010). Lifetime measurements of excited states in neutron-rich Ar44,46 populated via a multinucleon transfer reaction. Physical Review C - Nuclear Physics, 82(2), [024308].