Study of the neutron-rich unbound 10He by one-proton transfer reaction 11Li(d,3He) at RIKEN

When?

Tuesday 23 October 2012, 14:00

Where?

30BB03 Physics Seminar Room

Open to:

Staff, Students

Speaker:

Adrien Matta, University of Surrey

Physics at the drip-line offer the opportunity to study nuclei at the limits of nuclear landscape, where additional protons or neutrons can no longer be kept in the nucleus. In the vicinity of the drip-lines, the structural features of the nuclei change with respect to the more stable nuclei, the normal shell closure of particles disappear and new phenomena appear, such as clusterization and halo. In this work we have revisited the spectroscopy of the unbound 10He by means of the 11Li(d,3He) reaction at 50 AMeV studied in missing mass method with the MUST2 array at the RIPS beam line of RIKEN. The experimental part of this study rely on new detection set-up using very thin silicon detectors. For the first time, the effective operability of these detectors, in conjunction with high granularity position sensitive detectors, was proved. The transfer reaction approach led to clear results on the 10He first resonant state position, found in this work at 1.4(3) MeV, in agreement with most of the previous experimental works. The extraction of a spectroscopic factor for the first time shed light on the ⟨10He|11Li⟩ overlap, found to be 0.13(6).