Investigation of the 6He cluster structures

Abstract

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.

10 pages, 11 figures, accepted in PRC

References in corpus (4)

• Laser Spectroscopic Determination of the 6He Nuclear Charge Radius
• The neutron halo of ${}^6$He in a microscopic model
• Radiative proton capture on ${}^6$He
• An inversion procedure for coupled-channel scattering: determining the deuteron-nucleus tensor interaction

Cited by in corpus (6)

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• Are there good probes for the di-neutron correlation in light neutron-rich nuclei?
• Investigation of contributions of the $2_2^{+}$ resonance in ${}^6$He via analysis of ${}^6$He($p$, $p^{\prime }$)
• Calculation Of The Elastic P6He And P8He Scattering In Glauber Approximation
• The Fractal Geometrical Properties of Nuclei