Multiple particle break-up study of low excited states in Be-9: The ghost peak in the Be-8 excitation energy spectrum visited
Artikel i vetenskaplig tidskrift, 2007

The aim of this work is to find out the origin of the anomalous resonance in Be-8 seen in the reactions through excited states in Be-9. We have populated the Be-9 excited states by beta-decay of Li-9. Energy and direction of the two alpha particles has been detected and the neutron spectra reconstructed. In our work we identified the "anomalous resonance" in Be-8 observed in several reaction studies as coming from the decay of the 2.43 and 2.78 MeV states in Be-9. This anomalous resonance appears when the two detected alpha particles are assumed to form a resonance in Be-8. We argued that the main decaying channels for these two levels in Be-9 do not involve Be-8.

Författare

M. Madurga

CSIC - Instituto de Estructura de la Materia (IEM)

M. J. G. Borge

CSIC - Instituto de Estructura de la Materia (IEM)

H. O. U. Fynbo

Aarhus Universitet

Björn Jonson

Chalmers, Teknisk fysik, Subatomär fysik

Göran Hugo Nyman

Chalmers, Teknisk fysik, Subatomär fysik

Y. Prezado

CSIC - Instituto de Estructura de la Materia (IEM)

K. Riisager

Aarhus Universitet

European Organization for Nuclear Research

Olof Tengblad

Chalmers, Teknisk fysik, Subatomär fysik

European Physical Journal: Special Topics

1951-6355 (ISSN) 1951-6401 (eISSN)

Vol. 150 1 137-138

Ämneskategorier

Fysik

DOI

10.1140/epjst/e2007-00287-3

Mer information

Senast uppdaterat

2018-02-28