Study of β-delayed charged particle emission of 11Li: Evidence of new decay channels
Artikel i vetenskaplig tidskrift, 2008

The break-up of the 18.2 MeV state in 11Be was studied in a 11Li β-decay experiment. We report here on the study of the dominating breakup channels involving na6He or 3n2α in the final state, with special emphasis dedicated in this contribution to the three-particle channel. The two emitted charged particles were detected in coincidence using a highly segmented experimental set-up. The observed experimental energy-vs-energy scatter plot indicates a sequential breakup where nuclei of mass 4, alpha particles, and mass 7, 7He, are involved. A Monte-Carlo simulation of the sequential channel, 11Be* → α + 7He → nα6He was performed and compared to the experimental data and to a simulation of the direct break-up of the 18.2 MeV state nα6He by phase space energy distribution. The energy-versus-energy plot are explained by the sequential simulation but not by the phase space simulation.

Författare

M. Madurga

CSIC - Instituto de Estructura de la Materia (IEM)

M. J. G. Borge

CSIC - Instituto de Estructura de la Materia (IEM)

J. C. Angelique

Université de Caen Normandie

Ling Bao

Chalmers, Teknisk fysik, Subatomär fysik

U. Bergmann

European Organization for Nuclear Research

A. ButÇŽ

Université de Caen Normandie

Horia Hulubei National Institute of Physics and Nuclear Engineering

J. Cederkäll

European Organization for Nuclear Research

J. M. Daugas

Université de Caen Normandie

C. Aa Diget

Aarhus Universitet

L. M. Fraile

European Organization for Nuclear Research

H. O. U. Fynbo

Aarhus Universitet

H. B. Jeppesen

Aarhus Universitet

Björn Jonson

Chalmers, Teknisk fysik, Subatomär fysik

E. Lienard

Université de Caen Normandie

F. Marechal

Université de Caen Normandie

M. Marques

Université de Caen Normandie

V. Meot

Université de Caen Normandie

F. Negoita

Université de Caen Normandie

T. Nilsson

European Organization for Nuclear Research

Göran Hugo Nyman

Chalmers, Teknisk fysik, Subatomär fysik

F. Perrot

Université de Caen Normandie

K. Riisager

Aarhus Universitet

O. Roig

Université de Caen Normandie

O. Tengblad

CSIC - Instituto de Estructura de la Materia (IEM)

E. Tengborn

European Organization for Nuclear Research

M. Turrion

European Organization for Nuclear Research

Katarina Wilhelmsen Rolander

Chalmers, Teknisk fysik, Subatomär fysik

Journal of Physics: Conference Series

1742-6588 (ISSN)

Vol. 111 1

Ämneskategorier

Fysik

DOI

10.1088/1742-6596/111/1/012024

Mer information

Senast uppdaterat

2018-02-28