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Journal Articles Physics Letters B Year : 2005

Excited states in neutron rich boron isotopes

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1
R. Kanungo
  • Function : Author
Z. Elekes
H. Baba
  • Function : Author
Zs. Dombrádi
  • Function : Author
Zs. Fülöp
  • Function : Author
J. Gibelin
Á. Horváth
  • Function : Author
Y. Ichikawa
E. Ideguchi
  • Function : Author
N. Iwasa
  • Function : Author
H. Iwasaki
  • Function : Author
S. Kawai
  • Function : Author
Y. Kondo
  • Function : Author
T. Motobayashi
  • Function : Author
M. Notani
  • Function : Author
T. Ohnishi
  • Function : Author
A. Ozawa
  • Function : Author
H. Sakurai
S. Shimoura
  • Function : Author
E. Takeshita
  • Function : Author
S. Takeuchi
  • Function : Author
I. Tanihata
  • Function : Author
Y. Togano
  • Function : Author
C. Wu
  • Function : Author
Y. Yamaguchi
  • Function : Author
Y. Yanagisawa
  • Function : Author
A. Yoshida
  • Function : Author
K. Yoshida
  • Function : Author

Abstract

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

Dates and versions

in2p3-00025778 , version 1 (15-03-2006)

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R. Kanungo, Z. Elekes, H. Baba, Zs. Dombrádi, Zs. Fülöp, et al.. Excited states in neutron rich boron isotopes. Physics Letters B, 2005, 608, pp.206-214. ⟨10.1016/j.physletb.2005.01.022⟩. ⟨in2p3-00025778⟩

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