TY - JOUR
T1 - Excited states in neutron rich boron isotopes
AU - Kanungo, R.
AU - Elekes, Z.
AU - Baba, H.
AU - Dombrádi, Zs
AU - Fülöp, Zs
AU - Gibelin, J.
AU - Horváth, Á
AU - Ichikawa, Y.
AU - Ideguchi, E.
AU - Iwasa, N.
AU - Iwasaki, H.
AU - Kawai, S.
AU - Kondo, Y.
AU - Motobayashi, T.
AU - Notani, M.
AU - Ohnishi, T.
AU - Ozawa, A.
AU - Sakurai, H.
AU - Shimoura, S.
AU - Takeshita, E.
AU - Takeuchi, S.
AU - Tanihata, I.
AU - Togano, Y.
AU - Wu, C.
AU - Yamaguchi, Y.
AU - Yanagisawa, Y.
AU - Yoshida, A.
AU - Yoshida, K.
N1 - Funding Information:
The authors gratefully acknowledge the support of the cyclotron staff of RRC for a smooth accelerator operation. One of authors (Z.E.) is grateful for the JSPS Fellowship Program in RIKEN. The European authors thank the kind hospitality and support from RIKEN. The present work was partly supported by the Grant-in-Aid for Scientific Research (No. 1520417) by the Ministry of Education, Culture, Sports, Science and Technology and by OTKA T42733, T46901 and T032113.
PY - 2005/2/24
Y1 - 2005/2/24
N2 - New experimental results on in-beam gamma spectroscopy of neutron rich boron isotopes are presented for 17B and its neutron removal fragments 14,15B, after scattering with a H2 target. A gamma transition for 17B is observed at 1089±15 keV. The fragment 15B is observed abundantly associated with a gamma transition of 1336±10 keV. This suggests for the first time a core-excited structure for 17B thereby providing a new insight into its structure. Observations for 12,14B are also presented. The data set provides a useful systematic study of first excited states of neutron rich boron isotopes showing the dramatic drop in excitation energy beyond N = 8.
AB - New experimental results on in-beam gamma spectroscopy of neutron rich boron isotopes are presented for 17B and its neutron removal fragments 14,15B, after scattering with a H2 target. A gamma transition for 17B is observed at 1089±15 keV. The fragment 15B is observed abundantly associated with a gamma transition of 1336±10 keV. This suggests for the first time a core-excited structure for 17B thereby providing a new insight into its structure. Observations for 12,14B are also presented. The data set provides a useful systematic study of first excited states of neutron rich boron isotopes showing the dramatic drop in excitation energy beyond N = 8.
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U2 - 10.1016/j.physletb.2005.01.022
DO - 10.1016/j.physletb.2005.01.022
M3 - Article
AN - SCOPUS:13444257852
VL - 608
SP - 206
EP - 214
JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
SN - 0370-2693
IS - 3-4
ER -