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

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

2011-02-11

arxiv.org/abs/1102.2269v1

Physical Review C 80, 064613 (2009)

Physics

Nuclear Physics

Nuclear Theory

Scientific paper

10.1103/PhysRevC.80.064613

$\alpha$ decaying states of $^{44, 46, 52}$Ti were investigated with angular correlation functions between $t$ and $\alpha$ with the $^{40, 42, 48}$Ca($^7$Li, $t\alpha$)$^{40, 42, 48}$Ca reactions at E = 26.0 MeV. Many $\alpha$ cluster states were newly observed in the 10 - 15 MeV excitation energy of $^{44}$Ti and their spin-parities were assigned, in which $J^\pi=7^-$ 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 $\alpha$ cluster states were also found in the 11 - 17 MeV excitation energy with the $^{42}$Ca($^7$Li, $t\alpha$)$^{42}$Ca reaction, though its strength is weak compared to $^{44}$Ti. No $\alpha$ cluster states were detected for the $^{48}$Ca($^7$Li, $t\alpha$)$^{48}$Ca reaction, in which the number of coincidence events decaying from $^{48}$Ca was very small.

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