Published May 1, 2014
| Version v1
Journal article
11Be(βp), a quasi-free neutron decay?
Creators
- 1. Department of Physics and Astronomy, Aarhus University, DK-8000, Aarhus C (Denmark)
- 2. Stefan-Meyer-Institut für subatomare Physik, Austrian Academy of Sciences, A-1090 Wien (Austria)
- 3. Faculty of Physics, University of Vienna, Währinger Strasse 17, A-1090 Wien (Austria)
- 4. Instituto de Estructura de la Materia, CSIC, E-28006 Madrid (Spain)
- 5. ISOLDE, PH Department, CERN, CH-1211 Geneve 23 (Switzerland)
- 6. Grupo de Física Nuclear, Universidad Complutense de Madrid, CEI Moncloa, E-28040 Madrid (Spain)
- 7. EN Department, CERN, CH-1211 Geneve 23 (Switzerland)
- 8. Fundamental Fysik, Chalmers Tekniska Högskola, SE-41296 Göteborg (Sweden)
Description
We have observed β−-delayed proton emission from the neutron-rich nucleus 11Be by analyzing a sample collected at the ISOLDE facility at CERN with accelerator mass spectrometry (AMS). With a branching ratio of (8.3±0.9)⋅10−6 the strength of this decay mode, as measured by the BGT-value, is unexpectedly high. The result is discussed within a simple single-particle model and could be interpreted as a quasi-free decay of the 11Be halo neutron into a single-proton state.
Availability note (English)
Available from http://dx.doi.org/10.1016/j.physletb.2014.03.062Additional details
Identifiers
- DOI
- 10.1016/j.physletb.2014.03.062;
- arXiv
- arXiv:1402.1645v1;
- PII
- S0370-2693(14)00229-9;
Publishing Information
- Journal Title
- Physics Letters. Section B
- Journal Volume
- 732
- Journal Issue
- Complete
- Journal Page Range
- p. 305-308
- ISSN
- 0370-2693
- CODEN
- PYLBAJ
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 46016672
- Subject category
- S73: NUCLEAR PHYSICS AND RADIATION PHYSICS;
- Descriptors DEI
- ACCELERATORS; BERYLLIUM 11; BETA DECAY; BRANCHING RATIO; CERN; DATA; DELAYED PROTONS; EMISSION; MASS SPECTROSCOPY; NEUTRON-RICH ISOTOPES; NEUTRONS; PROTON-EMISSION DECAY; SINGLE-PARTICLE MODEL
- Descriptors DEC
- ALKALINE EARTH ISOTOPES; BARYONS; BERYLLIUM ISOTOPES; BETA DECAY RADIOISOTOPES; BETA-MINUS DECAY RADIOISOTOPES; DECAY; DIMENSIONLESS NUMBERS; ELEMENTARY PARTICLES; EVEN-ODD NUCLEI; FERMIONS; HADRONS; INFORMATION; INTERNATIONAL ORGANIZATIONS; ISOTOPES; LIGHT NUCLEI; MATHEMATICAL MODELS; NUCLEAR DECAY; NUCLEAR MODELS; NUCLEI; NUCLEONS; PROTONS; RADIOISOTOPES; SECONDS LIVING RADIOISOTOPES; SPECTROSCOPY
Optional Information
- Copyright
- Copyright (c) 2014 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.