Partial widths and gamma-ray decay of the 2883- and 5037-keV levels in ${}_{}{}^{41}{}_{}{}^{}\mathrm{Sc}$

Proton and $\gamma$-ray decay widths for the ${7/2}^{+}$ resonance at 2883 keV excitation in ${}_{}{}^{41}{}_{}{}^{}\mathrm{Sc}$ have been deduced from measurements of $\frac{{\Gamma }_{\gamma }}{\Gamma }$ and the ($p,\gamma$) resonance strength. Our results are ${\Gamma }_{\gamma }=0.058\mathrm{}\pm 0.007$ eV and ${\Gamma }_p=0.090\mathrm{}\pm 0.011$ eV. Angular distributions measured for the $5037 \left(\frac{9}{2^{+}}\right)\to 2883$ keV and $2883\to 0 \left(\frac{7}{2^{-}}\right)$ keV transitions confirm the $J=\frac{7}{2}$ assignment for the 2883-keV level. The linear polarization was measured for the $2883\to 0$ keV transition and confirms the positive parity assignment. In addition, the ($p,\gamma$) strength for the 5037-keV level was measured, and our strength results for both resonances are lower than those of Youngblood, Wildenthal, and Class by a factor of 1.4.

[NUCLEAR REACTIONS ${}_{}{}^{40}{}_{}{}^{}\mathrm{Ca}(p,\gamma )$, $E_p=1.84,4.05\mathrm{}$ MeV; measured $\sigma (E_{\gamma },\theta )$, $Q$, $P\left({90}^{\circ }\right)$, resonance strengths, $I_{\gamma }$. ${}_{}{}^{41}{}_{}{}^{}\mathrm{Sc}$ deduced levels, $J^{\pi }$, ${\Gamma }_{\gamma }$, ${\Gamma }_p$, $C{}_{}{}^2{}_{}{}^{}S_p^{}{}_{}{}^{}$. Enriched target.]