Electromagnetic transitions inCr49

Deformed configuration mixing shell model calculations based on Hartree-Fock theory within the full $1f-2p$ shell space have been carried out for ${}_{24}{}^{49}{}_{}{}^{}\mathrm{Cr}_{25}^{}{}_{}{}^{}$ using modified Kuo-Brown effective interaction. The calculation gives rise to an excited $K=\frac{1}{2}$ band in addition to the $K=\frac{5}{2}$ ground state band. The spectrum of the latter is in excellent agreement with the experimental one. The calculated $B\left(E2\mathrm{}\right)\mathrm{}$, $B\left(M1\mathrm{}\right)\mathrm{}$ values, $\left(\frac{E2\mathrm{}}{M1\mathrm{}}\right)$ mixing ratios, branching ratios, and lifetimes compare reasonably well with the available observed values.