Status of vibrational structure inNi62
Open Access
- 16 March 2011
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review C
- Vol. 83 (3), 034316
- https://doi.org/10.1103/physrevc.83.034316
Abstract
Measurements consisting of -ray excitation functions and angular distributions were performed using the () reaction on . The excitation function data allowed us to check the consistency of the placement of transitions in the level scheme. From -ray angular distributions, the lifetimes of levels up to MeV in excitation energy were extracted with the Doppler-shift attenuation method. The experimentally deduced values of reduced transition probabilities were compared with the predictions of the quadrupole vibrator model and with large-scale shell model calculations in the shell configuration space. Two-phonon states were found to exist with some notable deviation from the predictions of the quadrupole vibrator model, but no evidence for the existence of three-phonon states could be established. proton core excitations played a major role in understanding the observed structure.
Keywords
Funding Information
- National Science Foundation
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