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Title: Core excitation in 92 Mo up to high spin
Abstract An in-beam gamma-ray spectroscopy study of the even–even nucleus92Mo has been carried out using the30Si +65Cu,18O +80Se reactions at beam energies of 120 and 99 MeV, respectively. Angular distribution from the oriented state ratio (RADO) and linear polarization (Δasym) measurements have fixed most of the tentatively assigned spin-parity of the high-energy levels. A large-scale shell-model calculation using the GWBXG interaction has been carried out to understand the configuration and structure of both positive and negative parity states up to the highest observed spin. The high-spin states primarily originate from the coupling of excited proton- and neutron-core structures in an almost stretched manner. The systematics of the energy required to form a neutron particle-hole pair excitation,νg9/2→νd5/2, is discussed. The lifetimes of a few high-spin states have been measured using the Doppler shift attenuation method. Additionally, a qualitative argument is proposed to explain the comparatively strong E1 transition feeding the 7310.9 keV level.  more » « less
Award ID(s):
2310059
PAR ID:
10591710
Author(s) / Creator(s):
; ; ; ; ; ; ; ; ; ; ; ;
Publisher / Repository:
IOP Publishing
Date Published:
Journal Name:
Journal of Physics G: Nuclear and Particle Physics
Volume:
52
Issue:
2
ISSN:
0954-3899
Page Range / eLocation ID:
025101
Format(s):
Medium: X
Sponsoring Org:
National Science Foundation
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