Skip to Main content Skip to Navigation
Conference papers

Low-lying states and structure of the exotic $^8$He via direct reactions on the proton

Abstract : The structure of the light exotic nucleus 8He was investigated using direct reactions of the 8He SPIRAL beam on a proton-rich target. The (p,p') scattering to the Click to view the MathML source state, the (p,d)7He and (p,t)6He transfer reactions, were measured at the energy Elab=15.7 A.MeV. The light charged particles (p,d,t) were detected in the MUST Si-strip telescope array. The excitation spectrum of 8He was extracted from the (p,p') reaction. Above the known Click to view the MathML source excited state at 3.6 MeV, a second resonance was found around 5.4 MeV. The cross sections were analyzed within the coupled-reaction channels framework, using microscopic potentials. It is inferred that the 8He ground state has a more complex neutron-skin structure than suggested by previous α+4n models assuming a pure (1p3/2)4 configuration.
Document type :
Conference papers
Complete list of metadatas

Cited literature [16 references]  Display  Hide  Download

http://hal.in2p3.fr/in2p3-00145704
Contributor : Dominique Girod <>
Submitted on : Tuesday, May 15, 2007 - 12:43:20 PM
Last modification on : Wednesday, September 16, 2020 - 4:08:13 PM
Long-term archiving on: : Wednesday, April 7, 2010 - 3:34:40 AM

File

in2p3-00145704.pdf
Files produced by the author(s)

Identifiers

Collections

Citation

F. Skaza, V. Lapoux, N. Keeley, N. Alamanos, F. Auger, et al.. Low-lying states and structure of the exotic $^8$He via direct reactions on the proton. 2nd International Conference on Collective Motion in Nuclei under Extreme Conditions - COMEX 2, Jun 2006, Sankt Goar, Germany. pp.260-265, ⟨10.1016/j.nuclphysa.2007.01.093⟩. ⟨in2p3-00145704⟩

Share

Metrics

Record views

408

Files downloads

661