Static moments of the first excited states of 32, 34S and 204, 206Pb |
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Authors: | A Olin O Häusser TK Alexander AJ Ferguson W Witthuhn |
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Institution: | Chalk River Nuclear Laboratories, Atomic Energy of Canada Limited, Chalk River, Ontario, Canada KOJ 1JO |
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Abstract: | The reorientation effect in Coulomb excitation has been used to measure the following static quadrupole moments: . Interference effects from higher excited states have been included in the analysis, with the signs of the E2 matrix elements taken from an anharmonic model. The value obtained for is in disagreement with two previous measurements. We attribute the discrepancy to the smaller internucleon separation distances involved in the previous experiments, which can cause deviations from Coulomb excitation cross sections. The other quadrupole moments have not been measured previously. The B (E2: 0+ → 2+) measured were: . From the angular distribution of the de-excitation γ-rays of the Pb nuclei following recoil into vacuum, we have determined the following (two standard deviations), . Our value of is in agreement with a previous measurement. |
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Keywords: | Nuclear reactions |
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