Existence of α-cluster structure in Ti44 via the (6Li,d) reaction

T. Yamaya, S. Oh-ami, M. Fujiwara, T. Itahashi, K. Katori, M. Tosaki, S. Kato, S. Hatori, and S. Ohkubo
Phys. Rev. C 42, 1935 – Published 1 November 1990
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Abstract

α-cluster states in Ti44 have been investigated in the Ca40(6Li,d)44Ti reaction at E=50 MeV. The angular distributions of 34 levels at excitation energies for Ex=0–13 MeV allow us to analyze the data. The angular distributions of positive-parity members of the ground-state band (the Kπ=0+ band) in Ti44 were well reproduced by the finite-range distorted-wave Born approximation calculations up to the transferred angular momentum of L=8. For the members of the negative-parity band (the Kπ=0 band) with the primary quantum number N=13, three levels at 6.22, 7.34, and 9.43 MeV were identified as the 1, 3, and 5 states, respectively. The existence of a negative-parity band in Ti44 has been investigated for a long time and persistently gives considerable support to α-cluster models for nuclei heavier than A=40.

  • Received 30 May 1990

DOI:https://doi.org/10.1103/PhysRevC.42.1935

©1990 American Physical Society

Authors & Affiliations

T. Yamaya and S. Oh-ami

  • Department of Physics, Tohoku University, Sendai 980, Japan

M. Fujiwara and T. Itahashi

  • Research Center for Nuclear Physics, Osaka University, Osaka 567, Japan

K. Katori

  • Department of Physics, Osaka University, Osaka 588, Japan

M. Tosaki

  • Laboratory of Applied Physics, Kyoto Prefectual University, Kyoto 606, Japan

S. Kato

  • Faculty of General Education, Yamagata University, Yamagata 990, Japan

S. Hatori

  • Department of Physics, Kyoto University, Kyoto 606, Japan

S. Ohkubo

  • Department of Applied Science, Kochi Women’s University, Kochi 780, Japan

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Vol. 42, Iss. 5 — November 1990

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