Alpha particle cluster states in fp-shell nuclei

Journal Article · Sat Aug 01 00:00:00 EDT 1987 · Phys. Rev. C; (United States)

DOI:https://doi.org/10.1103/PhysRevC.36.778· OSTI ID:6462034

Merchant, A C

Alpha particle cluster structure is known experimentally to persist throughout the mass range 16less than or equal toAless than or equal to20, and has been very successfully described in this region in terms of the Buck-Dover-Vary local potential cluster model. It is argued that an analogous cluster structure should be present in nuclei at the beginning of the fp shell, and the available experimental data are examined to determine likely alpha particle cluster state candidates in the mass range 40less than or equal toAless than or equal to44. Calculations of the cluster state spectra and mean square cluster-core separation distances (which may be readily used to evaluate E2 electromagnetic transition rates) for /sup 40/Ca, /sup 42/Ca, /sup 42/Sc, /sup 43/Sc, /sup 43/Ti, and /sup 44/Ti using the above-mentioned model are presented, and compared with experimental measurements where possible. The agreement between theory and experiment is generally good (although inferior to that obtained in the sd shell), and points to the desirability of an extension and improvement of the measurements of the properties of the excited states in these nuclei.

• Research Organization: Instituto de Estudos Avancados, Centro Tecnico Aeroespacial, 12.200 So Jose dos Campos
• OSTI ID: 6462034
• Journal Information: Phys. Rev. C; (United States), Vol. 36:2
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
CALCIUM 40
CLUSTER MODEL
CALCIUM 42
SCANDIUM 42
SCANDIUM 43
TITANIUM 43
TITANIUM 44
ALPHA PARTICLES
E2-TRANSITIONS
ENERGY LEVELS
NUCLEAR STRUCTURE
NUCLEON-NUCLEON POTENTIAL
QUANTUM NUMBERS
SHELL MODELS
ALKALINE EARTH ISOTOPES
BETA DECAY RADIOISOTOPES
BETA-PLUS DECAY RADIOISOTOPES
CALCIUM ISOTOPES
CHARGED PARTICLES
ELECTRON CAPTURE RADIOISOTOPES
ENERGY-LEVEL TRANSITIONS
EVEN-EVEN NUCLEI
EVEN-ODD NUCLEI
HOURS LIVING RADIOISOTOPES
INTERMEDIATE MASS NUCLEI
ISOTOPES
LIGHT NUCLEI
MATHEMATICAL MODELS
MULTIPOLE TRANSITIONS
NUCLEAR MODELS
NUCLEI
ODD-EVEN NUCLEI
ODD-ODD NUCLEI
POTENTIALS
RADIOISOTOPES
SCANDIUM ISOTOPES
SECONDS LIVING RADIOISOTOPES
STABLE ISOTOPES
TITANIUM ISOTOPES
YEARS LIVING RADIOISOTOPES
653001* - Nuclear Theory- Nuclear Structure
Moments
Spin
& Models