Published September 3, 1981
| Version v1
Journal article
Quenching of magnetic transitions and Δ(1232) degrees of freedom in nuclei
Creators
- 1. Regensburg Univ. (Germany, F.R.). Inst. fuer Physik 1 - Theoretische Physik
- 2. Michigan State Univ., East Lansing (USA)
- 3. Michigan State Univ., East Lansing (USA). Cyclotron Lab.
Description
The quenching of M1 transitions is discussed within the framework of an effective magnetic transition operator renormalized by virtual Δ (1232)-hole excitations. This scheme is applied to the M1 transition from the ground state to the 10.23 MeV (1+) state in 48Ca, a case which appears to reveal a comparatively simple shell-model structure. It is demonstrated that a large fraction of the observed quenching of the B(M1) value can be related to Δ (1232) degrees of freedom in a way consistent with the quenching of Gamow-Teller transitions. (orig.)
Additional details
Additional titles
- Subtitle (English)
- The "4"8Ca case
Publishing Information
- Journal Title
- Phys. Lett., B
- Journal Volume
- 104
- Journal Issue
- 4
- Series
- Phys. Lett., B.
- Journal Page Range
- 261-264
- ISSN
- 0370-2693
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- Netherlands
- INIS RN
- 13649664
- Subject category
- S73: NUCLEAR PHYSICS AND RADIATION PHYSICS;
- Descriptors DEI
- CALCIUM 48; DELTA-1236 RESONANCES; EXCITATION; M1-TRANSITIONS; PARTICLE-HOLE MODEL; QUANTUM OPERATORS; QUENCHING; SHELL MODELS; STRENGTH FUNCTIONS
- Descriptors DEC
- BARYON RESONANCES; BARYONS; CALCIUM ISOTOPES; ELEMENTARY PARTICLES; ENERGY-LEVEL TRANSITIONS; EVEN-EVEN NUCLEI; FERMIONS; FUNCTIONS; HADRONS; HEAT TREATMENTS; INTERMEDIATE MASS NUCLEI; ISOTOPES; MATHEMATICAL MODELS; MATHEMATICAL OPERATORS; MULTIPOLE TRANSITIONS; N*RESONANCES; NUCLEAR MODELS; NUCLEI; RESONANCE PARTICLES; STABLE ISOTOPES