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Neutrons correlation : experimental and theoretical study

4 He. 4 He. Neutrons correlation : experimental and theoretical study. Marlène Assié, IPN Orsay (phD end : september 2008) Jean-Antoine Scarpaci (IPNO), Denis Lacroix (GANIL). Break-up of 6 He : Results. Intuitive view of the Towing Mode of 6 He.

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Neutrons correlation : experimental and theoretical study

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  1. 4He 4He Neutrons correlation : experimental and theoretical study Marlène Assié, IPN Orsay (phD end : september 2008) Jean-Antoine Scarpaci (IPNO), Denis Lacroix (GANIL)

  2. Break-up of 6He : Results • Intuitive view of the Towing Mode of 6He • Distribution of relative angle between the 2 neutrons emitted in coincidence with an alpha particle with 10<En <30 MeV d²/d1d2 (barns) di-neutron cigare • Experimental set-up at GANIL • Correlation function rel (degrees) Neutron Wall di-neutron cigar 208Pb 10mg/cm² EDEN 6He @ 20 MeV/A rel (degrees)

  3. Correlation function and theoretical calculations • Beyond mean-field • Initialization of the nucleus (220) Esp 1 0,8 0,6 0,4 0,2 0 Occupation HF correlations Residual interaction : mean field SKIII, SLy4, SkM* v12=v0(1-(r)/0)(r-r’) 0 1 2 3 4 5 6 7 8 9 10 t/ • Adiabatic method for convergence : • =150 fm/c=10 . 10-22s • convergence achieved • oscillations reduce with the plug in time • Dynamics (under process) target projectile time

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