Experimental determination of the Jπ components of the spin-dipole resonance in 12B
Creators
- 1. Kernfysisch Versneller Instituut, University of Groningen, NL-9747 AA Groningen (Netherlands)
- 2. Istituto Nationale di Fisica Nucleare, Sezione di Milano, Via Celoria 16, 20133 Milan (Italy)
- 3. Istituto Nationale di Fisica Nucleare, Sezione di Bari, Via Orabona 4, 70126 Bari (Italy)
- 4. Vakgroep Subatomaire en Stralingsfysica, Universiteit Gent, Proeftuinstraat 86, B-9000 Gent (Belgium)
- 5. Research Center for Nuclear Physics, Osaka University, Ibaraki, Osaka 567-0047 (Japan)
Description
The inclusive C12(d->,He2) and exclusive C12(d->,He2+n) reactions have been studied with a beam energy of 171 MeV and scattering angles for the (d,He2) reaction θ=0 deg. and 3 deg. The studies focused on the separation of the isovector spin-dipole resonance (IVSGDR) into its components by measuring tensor-analysing powers and observing the direct neutron decay to the low-lying proton-hole states in 11B. Merging the information obtained from both measurements resulted in the first-time verification of model-independent predictions of tensor-analysing powers at extreme forward angles and the experimental decomposition of the IVSGDR into its Jπ components. The experimental results are in reasonable agreement with theoretical estimates based on shell-model calculations
Additional details
Identifiers
- DOI
- 10.1016/j.physletb.2007.03.031;
- PII
- S0370-2693(07)00299-7;
Publishing Information
- Journal Title
- Physics Letters. Section B
- Journal Volume
- 649
- Journal Issue
- 1
- Journal Page Range
- p. 35-42
- ISSN
- 0370-2693
- CODEN
- PYLBAJ
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 39027493
- Subject category
- S73: NUCLEAR PHYSICS AND RADIATION PHYSICS;
- Descriptors DEI
- BORON 11; BORON 12; CARBON 12 TARGET; DIPOLES; HELIUM 2; ISOVECTORS; MEV RANGE 100-1000; NEUTRONS; NUCLEAR DECAY; PROTONS; RESONANCE; SHELL MODELS; SPIN
- Descriptors DEC
- ANGULAR MOMENTUM; BARYONS; BETA DECAY RADIOISOTOPES; BETA-MINUS DECAY RADIOISOTOPES; BORON ISOTOPES; DECAY; ELEMENTARY PARTICLES; ENERGY RANGE; FERMIONS; HADRONS; HELIUM ISOTOPES; ISOTOPES; LIGHT NUCLEI; MATHEMATICAL MODELS; MEV RANGE; MILLISECONDS LIVING RADIOISOTOPES; MULTIPOLES; NUCLEAR MODELS; NUCLEI; NUCLEONS; ODD-EVEN NUCLEI; ODD-ODD NUCLEI; PARTICLE PROPERTIES; RADIOISOTOPES; STABLE ISOTOPES; TARGETS; TENSORS; VECTORS
Optional Information
- Copyright
- Copyright (c) 2007 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.