Cl37(He3,αγ)Cl36reaction:γdecay of the two lowest lyingT=2states

The ${}_{}{}^{37}{}_{}{}^{}\mathrm{Cl}({}_{}{}^3{}_{}{}^{}\mathrm{He},\alpha \gamma ){}_{}{}^{36}{}_{}{}^{}\mathrm{Cl}$ reaction was studied at 18 MeV, using an enriched Ca${\mathrm{Cl}}_2$ target. The $\gamma$ rays coincident with the $\alpha$ particles emitted at forward angle were detected by two Ge(Li) detectors located at $\theta =90\mathrm{}° \mathrm{and} 125°$ Forty-two levels were observed in ${}_{}{}^{36}{}_{}{}^{}\mathrm{Cl}$, essentially those seen in the ($p,d$) reaction. The $\gamma$-decay schemes of the two lowest lying $T=2\mathrm{}$ levels of ${}_{}{}^{36}{}_{}{}^{}\mathrm{Cl}$ (analogs of the first two levels of ${}_{}{}^{36}{}_{}{}^{}\mathrm{S}$, $J^{\pi }=0^{+} \mathrm{and} 2^{+}$, respectively) have been determined. The lowest $T=2\mathrm{}$ level at $E_x=4299.5\mathrm{}\pm 1.1$ keV, feeds three levels: $E_x=1165\mathrm{}$ keV ($J^{\pi }=1^{+},65\mathrm{}\pm 8\%$), $E_x=1601\mathrm{}$ keV ($J^{\pi }=1^{+},28\mathrm{}\pm 5\%$), and $E_x=2677\mathrm{}$ keV ($J^{\pi }=1^{+},7\mathrm{}\pm 3\%$). The second one at $E_x=7564\mathrm{}\pm 4$ keV feeds the levels at $E_x=1601\mathrm{}$ keV (42±6%), $E_x=1960\mathrm{}$ keV ($J^{\pi }=2^{+},40\mathrm{}\pm 6\%$), and $E_x=2491\mathrm{}$ keV (