High-spin gamma spectroscopy of recoil-separated<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mmultiscripts><mml:mrow><mml:mi mathvariant="normal">Cr</mml:mi></mml:mrow><mml:mprescripts/><mml:mrow/><mml:mrow><mml:mn>49</mml:mn></mml:mrow><mml:mrow/><mml:mrow/></mml:mmultiscripts></mml:mrow></mml:math>,<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mmultiscripts><mml:mrow><mml:mi mathvariant="normal">V</mml:mi></mml:mrow><mml:mprescripts/><mml:mrow/><mml:mrow><mml:mn>49</mml:mn></mml:mrow><mml:mrow/><mml:mrow/></mml:mmultiscripts></mml:mrow></mml:math>, and<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mmultiscripts><mml:mrow><mml:mi mathvariant="normal">Ti</mml:mi></mml:mrow><mml:mprescripts/><mml:mrow/><mml:mrow><mml:mn>46</mml:mn></mml:mrow><mml:mrow/><mml:mrow/></mml:mmultiscripts></mml:mrow></mml:math>
Аннотация
The reaction $^{40}\mathrm{Ca}$${+}^{12}$C at ${\mathit{E}}_{\mathrm{Ca}}$=160 MeV has been used to study high-spin states in the recoil-separated nuclides $^{49}\mathrm{Cr}$, $^{49}\mathrm{V}$, and $^{46}\mathrm{Ti}$. The latter two show distinctive ${\mathit{f}}_{7/2}$ shell-model behavior up to ${\mathit{J}}^{\mathrm{\ensuremath{\pi}}}$=27/${2}^{\mathrm{\ensuremath{-}}}$ and ${12}^{+}$, respectively, while the first appears to be a collective rotor with a particle alignment at ${\mathit{J}}^{\mathrm{\ensuremath{\pi}}}$=17/${2}^{\mathrm{\ensuremath{-}}}$. Rotorlike bands of sd-shell origin were seen in $^{49}\mathrm{V}$ and $^{46}\mathrm{Ti}$ up to ${\mathit{J}}^{\mathrm{\ensuremath{\pi}}}$=11/${2}^{+}$ and ${11}^{\mathrm{\ensuremath{-}}}$, respectively.
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