The nucleusGe has been studied via the +Zn{n, 2ny) Ge reaction at E~= 30 MeV using different in-beam y spectroscopic techniques. Levels up to 5.5 MeV have been identified and spins up to 8+ have been established.NUCLEAR REACTIONS +Zn{n, 2ny) E~= 30 MeV, yy coincidences, angular distributions, level scheme deduced.

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A compilation of a large number of experimental results supporting a crude shell-model description of twonucleon high-spin states is presented, A simple addition rule is deduced: In even nuclei the energy of a state involving two nucleons coupled to their maximum spin value is simply the sum of the experimental energies of each nucleon in its single-particle state in the neighboring nucleus plus the pairing energy when. the two nucleons are identical. This simple model gives predictions in a parameter-free way, all the involved data being extracted from experiments. NUCLEAR STRUCTURE. E Very simple shell-model. Location of two-nucleon" high-spin states, coupling to maximum spin of the two nucleons.

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The 70Ga nucleus has been investigated via the 68Zn(α, pnγ)70Ga reaction at Eα = 23-40 MeV. The level scheme has been established by means of relative yield functions, electronic timing measurements, prompt and delayed coincidences and angular distributions of the emitted γ rays. The assignations of spins up to 9+ to levels up to 2.9 MeV excitation energy specify the components of the (νlg9/2) subshell

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