Abstract
Six low-lying negative parity levels of /sup 165/Ho, up to 688.5 keV excitation energy, were observed to be Coulomb excited with 4.32 MeV protons. Eleven deexcitation transitions from these levels were identified in the singles gamma-ray spectra recorded with a 57 cm/sup 3/ Ge(Li) detector. The 515.5, 566.8, 638, and 688.5 keV levels have been Coulomb excited with protons for the first time. Level energies, branching ratios, B(E2) transition probabilities, and the multipole mixing ratios (delta) were obtained. Existing ambiguities in the reported measurements of B(E2) were resolved. The angular distributions of the nine deexcitation transitions were analyzed to extract the angular distribution coefficients A/sub 2/, and the delta values for the mixed 115.1, 543.3, 566.8, and 593.8 keV transitions. The results have been discussed in light of the previously reported results.
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