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

D. Montanari et al.
Phys. Rev. C 85, 044301 – Published 2 April 2012

Abstract

The γ decays of neutron-rich Ca isotopes around 48Ca were measured at Legnaro National Laboratory with the PRISMA-CLARA setup, using the heavy-ion transfer reactions 48Ca on 64Ni and 48Ca on 208Pb at 6 MeV/A. The work shows the feasibility to perform full in-beam γ 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, 49Ca and 47Ca, 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 48Ca. In the two-neutron transfer channels, 46Ca and 50Ca, the experimental data are in global agreement with predictions based on full fp shell-model calculations.

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  • Received 9 December 2011

DOI:https://doi.org/10.1103/PhysRevC.85.044301

©2012 American Physical Society

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Vol. 85, Iss. 4 — April 2012

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