Study of β-delayed charged particle emission of 11Li: Evidence of new decay channels
Journal article, 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.

Author

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

University of Caen Normandy

Ling Bao

Chalmers, Applied Physics, Subatomic Physics

U. Bergmann

European Organization for Nuclear Research

A. ButÇŽ

University of Caen Normandy

Horia Hulubei National Institute of Physics and Nuclear Engineering

J. Cederkäll

European Organization for Nuclear Research

J. M. Daugas

University of Caen Normandy

C. Aa Diget

Aarhus University

L. M. Fraile

European Organization for Nuclear Research

H. O. U. Fynbo

Aarhus University

H. B. Jeppesen

Aarhus University

Björn Jonson

Chalmers, Applied Physics, Subatomic Physics

E. Lienard

University of Caen Normandy

F. Marechal

University of Caen Normandy

M. Marques

University of Caen Normandy

V. Meot

University of Caen Normandy

F. Negoita

University of Caen Normandy

T. Nilsson

European Organization for Nuclear Research

Göran Hugo Nyman

Chalmers, Applied Physics, Subatomic Physics

F. Perrot

University of Caen Normandy

K. Riisager

Aarhus University

O. Roig

University of Caen Normandy

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, Applied Physics, Subatomic Physics

Journal of Physics: Conference Series

17426588 (ISSN) 17426596 (eISSN)

Vol. 111 1

Subject Categories

Physical Sciences

DOI

10.1088/1742-6596/111/1/012024

More information

Latest update

2/28/2018