Exotic clustering and Halo states in $^{12,14}$Be - IN2P3 - Institut national de physique nucléaire et de physique des particules Access content directly
Conference Papers Nuclear Physics A Year : 1999

Exotic clustering and Halo states in $^{12,14}$Be

N.A. Orr
M. Freer
  • Function : Author

Abstract

The nuclei $^{12}$Be and $^{14}$Be have been investigated using breakup reactions on p, $^{12}$C and $^{208}$Pb targets. The decay of $^{12}$Be into two helium clusters ($^6$He+$^6$He and $^4$He+$^8$He) was observed from a series of excited states between 10 and 25 MeV with spins in the range 4 to 8h, consistent with a deformed “molecular” structure. In the case of $^{14}Be, narrow forward peaked single-neutron angular distributions were were observed for the breakup to $^{12}Be. Analysis of the associated neutron-neutron correlations indicate an RMS separation for the halo neutrons of around 5 fm.

Dates and versions

in2p3-00006076 , version 1 (18-09-2000)

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N.A. Orr, M. Freer. Exotic clustering and Halo states in $^{12,14}$Be. International nuclear physics conference INPC 98, Aug 1998, Paris, France. pp.710c-713c, ⟨10.1016/S0375-9474(00)88532-2⟩. ⟨in2p3-00006076⟩
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