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arXiv · 1102.2269

$α$ cluster states in $^{44, 46, 52}$Ti

M. Fukada·M. K. Takimoto·K. Ogino·S. Ohkubo
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Abstract

$α$ decaying states of $^{44, 46, 52}$Ti were investigated with angular correlation functions between $t$ and $α$ with the $^{40, 42, 48}$Ca($^7$Li, $tα$)$^{40, 42, 48}$Ca reactions at E = 26.0 MeV. Many $α$ cluster states were newly observed in the 10 - 15 MeV excitation energy of $^{44}$Ti and their spin-parities were assigned, in which $J^π=7^-$ state was found at 11.95 MeV as a candidate for the member of the $K=0_1^-$ negative parity band. In $^{46}$Ti many $α$ cluster states were also found in the 11 - 17 MeV excitation energy with the $^{42}$Ca($^7$Li, $tα$)$^{42}$Ca reaction, though its strength is weak compared to $^{44}$Ti. No $α$ cluster states were detected for the $^{48}$Ca($^7$Li, $tα$)$^{48}$Ca reaction, in which the number of coincidence events decaying from $^{48}$Ca was very small.

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M. Fukada, M. K. Takimoto, K. Ogino, S. Ohkubo. 2011-02-11. $α$ cluster states in $^{44, 46, 52}$Ti. https://doi.org/10.1103/physrevc.80.064613

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