High spin structure and intruder configurations in 31P
Creators
- 1. National Institute for Physics and Nuclear Engineering, Bucharest (Romania)
- 2. INFN, Laboratori Nazionali di Legnaro, Legnaro (Italy)
- 3. Dipartimento di Fisica dell'Universita and INFN, Sezione di Padova, Padova (Italy)
Description
The nucleus 31P has been studied in the 24Mg(16O,2αp) reaction with a 70-MeV 16O beam. A complex level scheme extended up to spins 17/2+ and 15/2-, on positive and negative parity, respectively, has been established. Lifetimes for the new states have been investigated by the Doppler shift attenuation method. Two shell-model calculations have been performed to describe the experimental data, one by using the code ANTOINE in a valence space restricted to the sd shell, and the other by applying the Monte Carlo shell model in a valence space including the sd-fp shells. The latter calculation indicates that intruder excitations, involving the promotion of a T=0 proton-neutron pair to the fp shell, play a dominant role in the structure of the positive-parity high-spin states of 31P
Additional details
Identifiers
Publishing Information
- Journal Title
- Physical Review. C, Nuclear Physics
- Journal Volume
- 73
- Journal Issue
- 2
- Journal Page Range
- p. 024310-024310.12
- ISSN
- 0556-2813
- CODEN
- PRVCAN
INIS
- Country of Publication
- United States
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 37076690
- Subject category
- S73: NUCLEAR PHYSICS AND RADIATION PHYSICS;
- Descriptors DEI
- COLLECTIVE MODEL; DSA METHOD; EXCITATION; HIGH SPIN STATES; LIFETIME; MAGNESIUM 24 TARGET; MEV RANGE; MONTE CARLO METHOD; NEUTRONS; OXYGEN 16 REACTIONS; PARITY; PHOSPHORUS 31; PROTONS; SHELL MODELS; SPIN; VALENCE
- Descriptors DEC
- ANGULAR MOMENTUM; BARYONS; CALCULATION METHODS; COUNTING TECHNIQUES; ELEMENTARY PARTICLES; ENERGY LEVELS; ENERGY RANGE; ENERGY-LEVEL TRANSITIONS; FERMIONS; HADRONS; HEAVY ION REACTIONS; ISOTOPES; LIGHT NUCLEI; MATHEMATICAL MODELS; NUCLEAR MODELS; NUCLEAR REACTIONS; NUCLEI; NUCLEONS; ODD-EVEN NUCLEI; PARTICLE PROPERTIES; PHOSPHORUS ISOTOPES; STABLE ISOTOPES; TARGETS
Optional Information
- Notes
- (c) 2006 The American Physical Society