Published May 8, 2000
| Version v1
Journal article
High-resolution gamma-ray spectroscopy of 7ΛLi
Creators
- Tamura, H.
- Tanida, K.
- Abe, D.
- Akikawa, H.
- Araki, K.
- Bhang, H.
- Endo, T.
- Fujii, Y.
- Fukuda, T.
- Hashimoto, O.
- Imai, K.
- Hotchi, H.
- Kakiguchi, Y.
- Kim, J.H.
- Kim, Y.D.
- Miyoshi, T.
- Murakami, T.
- Nagae, T.
- Nishida, J.
- Noumi, H.
- Outa, H.
- Ozawa, K.
- Saito, T.
- Sasao, J.
- Sato, Y.
- Satoh, S.
- Sawafta, R.
- Sekimoto, M.
- Takahashi, T.
- Tang, L.
- Xia, H.H.
- Zhou, S.H.
- Zhu, L.H.
Description
We report on the first observation of hypernuclear γ transitions using germanium detectors. Using a large-acceptance Ge detector system, we observed two γ transitions in 7ΛLi, the spin-flip M1(((3+)/(2)) → ((1+)/(2))) transition at 689±4 keV and the E2(((5+)/(2)) → ((1+)/(2))) transition at 2050±2 keV (preliminary). The strength of the ΛN spin-spin interaction is derived from the energy of the former transition. As for the latter transition, B(E2) was measured to be 3.9±0.6±0.4 e2fm4 (preliminary), which indicates a shrinkage of the nuclear size of 7ΛLi from 6Li and confirms 'glue-like role' of Λ
Additional details
Identifiers
- PII
- S037594740000107X;
Publishing Information
- Journal Title
- Nuclear Physics. A
- Journal Volume
- 670
- Journal Issue
- 1-4
- Journal Page Range
- p. 249c-256c
- ISSN
- 0375-9474
- CODEN
- NUPABL
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 34042648
- Subject category
- S73: NUCLEAR PHYSICS AND RADIATION PHYSICS;
- Descriptors DEI
- E2-TRANSITIONS; GAMMA SPECTROSCOPY; HYPERNUCLEI; LITHIUM 7; M1-TRANSITIONS; NUCLEAR STRUCTURE; SPIN FLIP; STRENGTH FUNCTIONS
- Descriptors DEC
- ENERGY-LEVEL TRANSITIONS; FUNCTIONS; ISOTOPES; LIGHT NUCLEI; LITHIUM ISOTOPES; MULTIPOLE TRANSITIONS; NUCLEAR FRAGMENTS; NUCLEI; ODD-EVEN NUCLEI; SPECTROSCOPY; STABLE ISOTOPES
Optional Information
- Copyright
- Copyright (c) 2000 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.