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Start Over Descriptor "SHELL-MODEL CALCULATIONS" Publisher elsevier science bv
2 results on '"SHELL-MODEL CALCULATIONS"'

1. Beta decay of Cu-56

Subjects
SHELL-MODEL CALCULATIONS, calculated levels, deduced beta-intensity and beta-strength distribution, WEAK-INTERACTION RATES, Ni-56 deduced levels J, p3n)], pi, shell model, on-line mass separation, Gamow-Teller strength, INTERMEDIATE-MASS NUCLEI, NI-56, STELLAR, Ge detectors, measured E gamma, 1 gamma, radioactivity Cu-56 (beta(+)) [from Si-28(S-32, RANGE A=45-65, nuclear Structure Ni-56, plastic scintillation detectors
Abstract

The proton-rich isotope Cu-56 was produced at the GSI On-Line Mass Separator by means of the Si-28(S-32, p3n) fusion-evaporation reaction. Its beta -decay properties were studied by detecting beta -delayed gamma rays and protons. A half-Life of 93 +/- 3 ms was determined for Cu-56. Compared to the previous work, six new gamma rays and three new levels were assigned to the daughter nucleus Ni-56. The measured Gamow-Teller strength values for five Ni-56 levels are compared to shell-model predictions. (C) 2001 Elsevier Science B.V. ALI rights reserved.

Published
2001

2. STUDY OF THE HIGH-SPIN STRUCTURE OF PM-146

Subjects
2N), PM-146 DEDUCED LEVELS, SPECTROSCOPY, 5N), SHELL-MODEL CALCULATIONS, ICC, E EQUALS 18 MEV, ND-143, PI, ND-146(D, I-Y, BRANCHINGS, SOLID XE-136 TARGET, MEASURED GAMMA-GAMMA(T), (E)(GAMMA)-COIN, DCO RATIOS, XE-136(N-15, OCTUPOLE STATES, E EQUALS 78 MEV
Abstract

Excited states in Pm-146 have been investigated through the Xe-136(N-15,5n) and the Nd-146(d,xn) compound-nucleus reactions. A level scheme extending up to 6.9 MeV of excitation energy and (I = 25HBAR) is proposed. Most of the high-spin levels are interpreted in terms of multi-particle-hole states but at medium spins octupole-phonon excitations are identified. The results are discussed and the level scheme compared with analogous states in neighbouring nuclei. Yrast configurations in Pm-146 are described by the shell-model calculation involving empirical single-particle energies and two-body interactions.

Published
1995

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