Properties of high-spin states inTc95fromNb93(α, 2n)Tc*95(γ)reaction spectrometry: A test of the cluster-core coupling model

The structure and properties of the high angular momentum states in ${}_{}{}^{95}{}_{}{}^{}\mathrm{Tc}$ up to 5605 keV of excitation have been investigated via measurements of excitation functions of singles $\gamma$ rays and of $\gamma \gamma$ coincidences following the ${}_{}{}^{93}{}_{}{}^{}\mathrm{Nb}(\alpha , 2n){}_{}{}^{95}{}_{}{}^{}\mathrm{Tc}_{}^{*}{}_{}{}^{}\left(\gamma \right)$ reaction with $\alpha$ particle energies between 17-30 MeV. From these experiments and from high-resolution singles energy, angular-distribution, and Doppler-shift attenuation measurements, the position and the decay properties of many high angular momentum states in ${}_{}{}^{95}{}_{}{}^{}\mathrm{Tc}$ have been determined. Levels at 626.82 (${\frac{5}{2}}_1^{+}$), 882.16 (${\frac{13}{2}}_2^{+}$), 927.78 (${\frac{3}{2}}_1^{+}$), 957.07 (${\frac{11}{2}}_1^{+}$), 1084.95 (${\frac{5}{2}}_2^{+}, {\frac{7}{2}}^{+}$), 1178.60 (${\frac{7}{2}}_2^{+}$), 1214.53 (${\frac{9}{2}}_1^{-}$), 1307.19 (${\frac{11}{2}}_2^{+}$), 1514.8 (${\frac{17}{2}}_1^{+}$), 1549.4 (${\frac{15}{2}}_1^{+}$), and 1702.1 (${\frac{13}{2}}_1^{-}$) with the $J^{\pi }$ values in parentheses are confirmed. New levels at 2119.4 (${\frac{15}{2}}_2^{+}$), 2183.2 (${\frac{19}{2}}_1^{+}$), 2231.1 (${\frac{17}{2}}_2^{+}$), 2546.4 (${\frac{21}{2}}_1^{+}$), 2846.7 (