Physics – Nuclear Physics – Nuclear Experiment
Scientific paper
2005-05-04
Phys.Rev. C71 (2005) 064311
Physics
Nuclear Physics
Nuclear Experiment
10 pages, 11 figures, accepted in PRC
Scientific paper
10.1103/PhysRevC.71.064311
The 4He+2n and t+t clustering of the 6He ground state were investigated by means of the transfer reaction 6He(p,t)4He at 25 MeV/nucleon. The experiment was performed in inverse kinematics at GANIL with the SPEG spectrometer coupled to the MUST array. Experimental data for the transfer reaction were analyzed by a DWBA calculation including the two neutrons and the triton transfer. The couplings to the 6He --> 4He + 2n breakup channels were taken into account with a polarization potential deduced from a coupled-discretized-continuum channels analysis of the 6He+1H elastic scattering measured at the same time. The influence on the calculations of the 4He+t exit potential and of the triton sequential transfer is discussed. The final calculation gives a spectroscopic factor close to one for the 4He+2n configuration as expected. The spectroscopic factor obtained for the t+t configuration is much smaller than the theoretical predictions.
Alamanos N.
Auger F.
Cortina-Gil M. D.
Demonchy C. E.
Fernandez-Vasquez J.
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