# Étude de réactions et d'états isobariques analogues dans le système $^{8}$He+p, à basse énergie, à l'aide de la cible active MAYA

Abstract : With the resent improvements in the field of exotics beams, and specially with the SPIRAL facility at GANIL, we were able to study 9He shell inversion already known for 11Be and 10Li, which are two members of the n=7 familly. A new detector was developed and also the software tools for the data analysis. this detector is at the same time the target (active-target) and called MAYA. the 9He was studied by determining the properties of its isobaric analogue states in 9Li. The characteristics of the IAS were determined by an analysis of the resonances in the elastic scaterring cross section for 8He+p from 2 up to 3.9 MeV/n. A study of (p,d) and (p,t) reactions was done too, in this domain of energy. By comparing the experimental results with calculations, an assignation of spin and parity for two states in 9He was possible.
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https://tel.archives-ouvertes.fr/tel-00004117
Contributor : Charles Edouard Demonchy <>
Submitted on : Wednesday, February 4, 2004 - 2:03:41 PM
Last modification on : Thursday, February 1, 2018 - 1:34:43 AM
Long-term archiving on: : Monday, September 20, 2010 - 11:49:40 AM

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• HAL Id : tel-00004117, version 2

### Citation

Charles-Edouard Demonchy. Étude de réactions et d'états isobariques analogues dans le système $^{8}$He+p, à basse énergie, à l'aide de la cible active MAYA. Physique Nucléaire Expérimentale [nucl-ex]. Université de Caen, 2003. Français. ⟨tel-00004117v2⟩

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