ISSN:
1434-601X
Keywords:
PACS: 21.10.Hw Spin, parity, and isobaric spin – 21.10.Tg Lifetimes – 21.60.-n Nuclear-structure models and methods – 27.50.+e 59 ≤ A ≤ 89
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract: A nuclear resonance fluorescence experiment on 88Sr has been performed with bremsstrahlung of 6.7 MeV endpoint energy. The γ-ray linear polarisation has been measured with a EUROBALL CLUSTER detector used as a Compton polarimeter. The results indicate positive parity for the J= 1 state at 4.742 MeV in 88Sr, in contrast to the previous interpretation as a 1− two-phonon (2+ 1⊗ 3− 1) state and in conflict with the predictions of the quasiparticle-phonon model. On the basis of such calculations the 1+ state at 3.486 MeV may be considered as the 1+ 1 one-phonon state and the very strong 1+ 1→ 0+ 1 deexcitation as proton spin-flip 2p1/2→ 2p3/2 transition.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/s100500050004
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