Experimental evidence for cluster structure of 11B excited states

The kinematically complete measurements of the 7Li(9Be,t)5He reaction at Ebeam = 55 and 70 MeV have been performed and the reconstructed 11B excitation energy spectra were compared with the 7Li(9Be,7Li)5He results obtained at the same beam energies. Evidence was found for the t+8Be(g.s.) decay of th...

Full description

Saved in:
Bibliographic Details
Published in:AIP conference proceedings 2006-08, Vol.853 (1), p.171-176
Main Authors: Soic, N, Freer, M, Donadille, L, Clarke, N M, Leask, P J, Catford, W N, Jones, K L, Mahboub, D, Fulton, B R, Greenhalgh, B J, Watson, D L
Format: Article
Language:English
Subjects:
ALPHA DECAY
ALPHA PARTICLES
BERYLLIUM 8
BERYLLIUM 9 REACTIONS
BORON 11
CLUSTER MODEL
ENERGY SPECTRA
EXCITATION
EXCITED STATES
HELIUM 5
LITHIUM 7 TARGET
NUCLEAR PHYSICS AND RADIATION PHYSICS
THREE-BODY PROBLEM
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The kinematically complete measurements of the 7Li(9Be,t)5He reaction at Ebeam = 55 and 70 MeV have been performed and the reconstructed 11B excitation energy spectra were compared with the 7Li(9Be,7Li)5He results obtained at the same beam energies. Evidence was found for the t+8Be(g.s.) decay of the 11B excited states at 13.1 and 14.4 MeV, the +7Li*(4.652 MeV) decay of the states at 14.4 and 17.5 MeV and for the t+8Be*(3.03 MeV) decay of the 17.5 MeV state in 11B. A study of the relative yields for the decay of the 14.4 MeV state indicates that significant part of -decay strength goes into the 2+t three-body decay channel.
ISSN:0094-243X
1551-7616
DOI:10.1063/1.2338373