Gamow-Teller transition of the proton-rich nucleus {sup 24}Si

Journal Article · Wed May 12 04:00:00 EDT 2010 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3442606· OSTI ID:21362026

Ichikawa, Y; Kubo, T; Aoi, N; Fukuda, N; Motobayashi, T; Yamada, K N; Sakurai, H ^[1]; Onishi, T K; Suzuki, D; Iwasaki, H; Nakao, T; Suzuki, H; Suzuki, M K ^[2]; Naik, V; Chakrabarti, A ^[3]; Brown, B A ^[4]; Kubono, S; Yamaguchi, H ^[5]; Nakabayashi, T; Nakamura, T ^[6]

---

1. RIKEN Nishina Center, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198 (Japan)
2. Department of Physics, University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo 113-0033 (Japan)
3. Variable Energy Cyclotron Centre, 1/AF, Bidhan, Nagar, Kolkata-700 064 (India)
4. Department of Physics and Astronomy, and National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824-1321 (United States)
5. Center for Nuclear Study, University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo 113-0033 (Japan)
6. Department of Physics, Tokyo Institute of Technology, 2-12-1 Oh-okayama, Meguro, Tokyo 152-8551 (Japan)

The Gamow-Teller transition strength B(GT) of {sup 24}Si was measured to investigate characteristic structure of proton-rich nuclei induced by a weakly-bound proton. By combining the results of the delayed gamma-ray and proton measurements, the entire decay scheme of {sup 24}Si was reconstructed, then the B(GT) of {sup 24}Si was deduced. Focusing to the low-lying states, the B(GT) of {sup 24}Si to the 1{sub 1}{sup +} and 1{sub 2}{sup +} states in {sup 24}Al were smaller than that of the mirror nucleus {sup 24}Ne by 22% and 10%, respectively. The mirror asymmetry of B(GT) indicates the configuration change in the wave function. Through the comparison with theoretical shell-model calculations, it is implied that the configuration change is attributed to the lowering of the 1s{sub 1/2} orbital. The applicability of the theoretical calculations was checked using overall B(GT) distribution.

• OSTI ID: 21362026
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 1235; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ALUMINIUM 24
ALUMINIUM ISOTOPES
ASYMMETRY
BARYONS
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
BETA-PLUS DECAY RADIOISOTOPES
DECAY
ELECTROMAGNETIC RADIATION
ELEMENTARY PARTICLES
EVEN-EVEN NUCLEI
FERMIONS
FUNCTIONS
GAMMA RADIATION
GAMOW-TELLER RULES
HADRONS
IONIZING RADIATIONS
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
LIGHT NUCLEI
MATHEMATICAL MODELS
MILLISECONDS LIVING RADIOISOTOPES
MINUTES LIVING RADIOISOTOPES
MIRROR NUCLEI
NEON 24
NEON ISOTOPES
NUCLEAR DECAY
NUCLEAR MODELS
NUCLEAR STRUCTURE
NUCLEI
NUCLEONS
ODD-ODD NUCLEI
PROTONS
RADIATIONS
RADIOISOTOPES
SECONDS LIVING RADIOISOTOPES
SHELL MODELS
SILICON 24
SILICON ISOTOPES
SPECTROSCOPY
WAVE FUNCTIONS