https://doi.org/10.1140/epja/i2011-11130-4
Regular Article - Experimental Physics
New β-delayed proton lines from 23Al
1
Department of Physics and Astronomy, Aarhus University, DK-8000, Aarhus C, Denmark
2
Department of Physics, University of Jyväskylä, FIN-40351, Jyväskylä, Finland
3
Instituto de Estructura de la Materia, CSIC, Serrano 113 bis, E-28006, Madrid, Spain
4
TRIUMF, V6T 2A3, Vancouver, BC, Canada
5
Department of Physics and Astronomy, University of Tennessee, 37996, Knoxville, TN, USA
* e-mail: oliskir@phys.au.dk
Received:
16
August
2011
Revised:
21
September
2011
Accepted:
10
October
2011
Published online:
26
October
2011
We report on a new measurement of the β-delayed proton spectrum of 23Al. Higher statistics compared to previous measurements allow us to identify new proton lines in the energy range 1–2 MeV. A statistical analysis of the observed β strength shows that the B (GT) values are fully consistent with having a Porter-Thomas distribution. This is indicative of chaotic behaviour and implies that only the average β strength carries physical meaning.
© SIF, Springer-Verlag Berlin Heidelberg, 2011
