Publications

Search for beta-delayed proton emission from <sup>11</sup>Be

Author(s)
K. Riisager, M. J. G. Borge, J. A. Briz, M. Carmona-Gallardo, O. Forstner, L. M. Fraile, H. O. U. Fynbo, A. Garzon Camacho, J. G. Johansen, B. Jonson, M. Lund, J. Lachner, M. Madurga, S. Merchel, E. Nacher, T. Nilsson, P. Steier, O. Tengblad, V. Vedia
Abstract

We report on an attempt to reproduce the observation of beta(-)-delayed proton emission from 11Be through detection of the final state nucleus 10Be with accelerator mass spectrometry. Twelve samples were collected at the ISOLDE facility at CERN at different separator settings, allowing tests of different sources of contamination to be carried out. The observed amounts of 10Be per collected 11Be rule out several contamination sources, but do not agree internally. Formation of BeH molecular ions in the ion source may explain our data, in which case an upper limit of the beta p branching ratio of 2.2 x 10(-6) can be derived.

Organisation(s)
Isotope Physics
External organisation(s)
Aarhus University, European Organization for Nuclear Research (CERN), Consejo Superior de Investigaciones Científicas (CSIC), Universidad Complutense De Madrid, Chalmers University of Technology, Helmholtz-Zentrum Dresden-Rossendorf
Journal
European Physical Journal A
Volume
56
No. of pages
8
ISSN
1434-6001
DOI
https://doi.org/10.1140/epja/s10050-020-00110-2
Publication date
03-2020
Peer reviewed
Yes
Austrian Fields of Science 2012
103014 Nuclear physics, 103008 Experimental physics
Keywords
Portal url
https://ucris.univie.ac.at/portal/en/publications/search-for-betadelayed-proton-emission-from-11be(dd68e4b4-a89d-4884-9c75-924c58427db2).html