The. decays of neutron-rich Ca isotopes around Ca-48 were measured at Legnaro National Laboratory with the PRISMA-CLARA setup, using the heavy-ion transfer reactions Ca-48 on Ni-64 and Ca-48 on Pb-208 at approximate to 6 MeV/A. The work shows the feasibility to perform full in-beam gamma spectroscopy with heavy-ion transfer reactions (in terms of angular distributions, polarizations, and lifetimes analysis), providing a method that can be further exploited in the future with heavy targets and radioactive beams. For the one-neutron transfer channels, Ca-49 and Ca-47, shell-model and particle-vibration coupling calculations are used to understand the nature of the states. In particular, in both nuclei evidence is found for particle-vibration coupled states based on the 3(-) phonon of Ca-48. In the two-neutron transfer channels, Ca-46 and Ca-50, the experimental data are in global agreement with predictions based on full fp shell-model calculations.

Gamma spectroscopy of calcium nuclei around doubly magic Ca-48 using heavy-ion transfer reactions / D. Montanari, S. Leoni, D. Mengoni, J. Valiente-Dobon, G. Benzoni, N. Blasi, G. Bocchi, P. Bortignon, S. Bottoni, A. Bracco, F. Camera, P. Casati, G. Colo, A. Corsi, F. Crespi, B. Million, R. Nicolini, O. Wieland, D. Bazzacco, E. Farnea, G. Germogli, A. Gottardo, S. Lenzi, S. Lunardi, R. Menegazzo, G. Montagnoli, F. Recchia, F. Scarlassara, C. Ur, L. Corradi, G. de Angelis, E. Fioretto, D. Napoli, R. Orlandi, E. Sahin, A. Stefanini, R. Singh, A. Gadea, S. Szilner, M. Kmiecik, A. Maj, W. Meczynski, A. Dewald, T. Pissulla, G. Pollarolo. - In: PHYSICAL REVIEW. C, NUCLEAR PHYSICS. - ISSN 0556-2813. - 85:4(2012).

Gamma spectroscopy of calcium nuclei around doubly magic Ca-48 using heavy-ion transfer reactions

S. Leoni
Secondo
;
P. Bortignon;S. Bottoni;A. Bracco;F. Camera;G. Colo;F. Crespi;
2012

Abstract

The. decays of neutron-rich Ca isotopes around Ca-48 were measured at Legnaro National Laboratory with the PRISMA-CLARA setup, using the heavy-ion transfer reactions Ca-48 on Ni-64 and Ca-48 on Pb-208 at approximate to 6 MeV/A. The work shows the feasibility to perform full in-beam gamma spectroscopy with heavy-ion transfer reactions (in terms of angular distributions, polarizations, and lifetimes analysis), providing a method that can be further exploited in the future with heavy targets and radioactive beams. For the one-neutron transfer channels, Ca-49 and Ca-47, shell-model and particle-vibration coupling calculations are used to understand the nature of the states. In particular, in both nuclei evidence is found for particle-vibration coupled states based on the 3(-) phonon of Ca-48. In the two-neutron transfer channels, Ca-46 and Ca-50, the experimental data are in global agreement with predictions based on full fp shell-model calculations.
magnetic spectrometer prisma; shell-model; octupole excitations; electron-scattering; tracking array; states; detector; polarization; collisions; dipole
Settore FIS/01 - Fisica Sperimentale
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2434/175314
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