Correlaciones a tres cuerpos en el nucleo

por Dr. Miguel Marques Moreno (Laboratoire de Physique Corpusculaire (LPC-Caen))

martes 19 dic. 2000 16:00 → 17:00 Europe/Madrid

Sala Seminarios IFIC (Edf. Institutos de Investigación)

Clustering phenomena, observed in excited states close to decay thresholds, appear near the drip-lines already in the ground state, the most exotic being Borromean core-n-n halo nuclei. We have undertaken two experiments aiming to probe the internal structure of these three-body systems: in 14Be, we have measured the 12Be+n+n dissociation on Pb/C targets with the neutron array DEMON, and analysed triple correlations in the system; in 6He, we have measured radiative capture of protons by the subsystems of 4He-n-n with the Chateau-de-Cristal photon spectrometer. We will discuss the different results of both experiments and their implications.