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Low-lying Proton Intruder State in 13B

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 Added by Shinsuke Ota
 Publication date 2008
  fields
and research's language is English




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The neturon rich nucleus 13B was studied via the proton transfer reaction 4He(12Be,13B gamma) at 50AMeV. The known 4.83-MeV excited state was strongly populated and its spin and parity were assigned to 1/2+ by comparing the angular differential cross section data with DWBA calculations. This low-lying 1/2+ state is interpreted as a proton intruder state and indicates a deformation of the nucleus.



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