Anomalously hindered E2 strength B(E2;2+(1)-->0+) in 16C.
/ Authors
N. Imai, H. Ong, N. Aoi, H. Sakurai, K. Demichi, H. Kawasaki, H. Baba, Z. Dombrádi, Z. Elekes, N. Fukuda
and 30 more authors
Z. Fülöp, A. Gelberg, T. Gomi, H. Hasegawa, Ken Ishikawa, H. Iwasaki, E. Kaneko, S. Kanno, T. Kishida, Y. Kondo, T. Kubo, K. Kurita, S. Michimasa, T. Minemura, M. Miura, T. Motobayashi, Takashi Nakamura, M. Notani, T. Onishi, A. Saito, S. Shimoura, T. Sugimoto, M. Suzuki, E. Takeshita, S. Takeuchi, M. Tamaki, K. Yamada, K. Yoneda, H. Watanabe, M. Ishihara
/ Abstract
The electric quadrupole transition from the first 2(+) state to the ground 0(+) state in 16C is studied through measurement of the lifetime by a recoil shadow method applied to inelastically scattered radioactive 16C nuclei. The measured mean lifetime is 77+/-14(stat)+/-19(syst) ps. The central value of mean lifetime corresponds to a B(E2;2+(1)-->0(+)) value of 0.63e(2) fm(4), or 0.26 Weisskopf units. The transition strength is found to be anomalously small compared to the empirically predicted value.
Journal: Physical review letters