Chin. Phys. Lett.  2001, Vol. 18 Issue (9): 1183-1185    DOI:
Original Articles |
Excitation Halo States of 12B
LIN Cheng-Jian;LIU Zu-Hua;ZHANG Huan-Qiao;WU Yue-Wei;YANG Feng;RUAN Ming
China Institute of Atomic Energy, P.O. Box 275(10), Beijing 102413
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LIN Cheng-Jian, LIU Zu-Hua, ZHANG Huan-Qiao et al  2001 Chin. Phys. Lett. 18 1183-1185
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Abstract Angular distributions for the 11B(d,p 12B transfer reactions have been measured at Elab = 11.8 MeV. The asymptotic normalization coefficients (ANC) of the ground state, the second and third excitation states for 12B(11B+n) are extracted from the differential cross sections at three forward angles. With these ANCs, the root-mean-square radii are calculated for these three states. The results show that the second and third excitation states of 12B are neutron halo states.
Keywords: 21.10.-k      21.10.Ft      21.10.Gv      25.70.Hi     
Published: 01 September 2001
PACS:  21.10.-k (Properties of nuclei; nuclear energy levels)  
  21.10.Ft (Charge distribution)  
  21.10.Gv (Nucleon distributions and halo features)  
  25.70.Hi (Transfer reactions)  
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YANG Feng
RUAN Ming
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