The Elastic Scattering of<sup>3</sup>He by<sup>3</sup>He

Ba 134 2631 ture of Ml. From the measurement of conversion coefficients Keister et at. 11 has assigned Ml multipolarity to the 569-keV gamma ray. Adopting this assignment, the value of the combined i£-conversion coefficient for the (563+569)-keV gamma ray measured in the present experiment requires that the 563-keV gamma-ray transition be 80% El and 20% Ml. Thus, the 1168-keV level can be assigned 1 + , 2+, or 3+ spins. The log // value of the beta-ray transition of energy 892 keV which feeds this level is 11.4. This requires A/=dz2, no change in parity. 16 Thus, the spin assignment for this level is 2 + .There is no ground-state transition observed from the level at 1402 keV, which implies a high spin value for this level. The measured value of the conversion coefficient of 800-keV cascade gamma ray is in agreement with the theoretical estimates of an El transition. This favors 2+, 3 + , and 4+ assignment to this level. The log ft value of the 655-keV beta group feeding this level is 8.5, and appears a little high for an allowed transition.

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The Elastic Scattering of³He by³He

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The Elastic Scattering of3He by3He