Cluster states in 13C.

Authors :: Sasamoto, Y.
Kawabata, T.
Uesaka, T.
Suda, K.
Maeda, Y.
Sakaguchi, S.
Itoh, K.
Hatanaka, K.
Fujiwara, M.
Tamii, A.
Shimizu, Y.
Nakanishi, K.
Kawase, K.
Hashimoto, H.
Tameshige, Y.
Matsubara, H.
Itoh, M.
Yoshida, H. P.
Uchida, M.
Source :: Modern Physics Letters A. 10/30/2006, Vol. 21 Issue 31-33, p2393-2401. 9p. 1 Diagram, 2 Charts, 5 Graphs.
Publication Year :: 2006
Abstract: Cross sections for 13C(α,α′) reactions at Eα = 400 MeV have been measured to obtain the monopole and quadrupole transition strengths. The excitation strengths are compared with the shell-model predictions. It is suggested that the large monopole strengths observed for the $1/2^-_2$ and $1/2^-_3$ states in 13C are attributed to the cluster structure of those states. [ABSTRACT FROM AUTHOR]