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Excited states in t...
Excited states in the neutron-deficient nuclei Rn-197,Rn-199,Rn-201
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- Andgren, Karin (författare)
- KTH,Fysik
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- Cederwall, Bo (författare)
- KTH,Fysik
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- Hadinia, Baharak (författare)
- KTH,Fysik
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- Johnson, Arne (författare)
- KTH,Fysik
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- Khaplanov, Anton (författare)
- KTH,Fysik
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- Sandzelius, Mikael (författare)
- KTH,Fysik
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- Wyss, Ramon (författare)
- KTH,Kärnfysik
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(creator_code:org_t)
- 2008
- 2008
- Engelska.
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Ingår i: Physical Review C. Nuclear Physics. - 0556-2813 .- 1089-490X. ; 77:5, s. 054303-1-054303-7
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Excited states of the extremely neutron-deficient radon isotopes with N = 111, 113, 115 have been studied for the first time in a series of in-beam experiments performed at the Accelerator Laboratory of the University of Jyvaskyla. The reactions used were: Sn-118(Kr-82, 3n)Rn-197, Sn-120(Kr-82, 3n)Rn-199, Sm-150(Cr-52, 3n)Rn-199, and Sn-122(Kr-82, 3n)Rn-201. The gamma rays emitted from excited states in the different isotopes were identified using the recoil-alpha-decay tagging technique. The estimated cross section for the production of Rn-197(m) was 7(3) nb, which is the lowest cross section reported so far for an in-beam study. The energies of the (17/2(+)) levels built on the isomeric (13/2(+)) states in Rn-197,Rn-199,Rn-201 indicate a transition from an anharmonic vibrational structure toward a rotational structure at low spins for these nuclei. However, the transition is not as sharp as predicted by theory.
Ämnesord
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
Nyckelord
- EVEN-EVEN NUCLEI; GAMMA-RAY SPECTROSCOPY; ALPHA-DECAY; MEAN-FIELD; ISOTOPES; RN-198
- Physics
- Fysik
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- ref (ämneskategori)
- art (ämneskategori)
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