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Coulomb Excitation of Sn-104 and the Strength of the Sn-100 Shell Closure
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2013 (English)In: Physical Review Letters, ISSN 0031-9007, Vol. 110, no 17, 172501- p.Article in journal (Refereed) Published
Abstract [en]

A measurement of the reduced transition probability for the excitation of the ground state to the first 2(+) state in Sn-104 has been performed using relativistic Coulomb excitation at GSI. Sn-104 is the lightest isotope in the Sn chain for which this quantity has been measured. The result is a key point in the discussion of the evolution of nuclear structure in the proximity of the doubly magic nucleus Sn-100. The value B(E2; 0(+) -> 2(+)) = 0.10(4) e(2)b(2) is significantly lower than earlier results for Sn-106 and heavier isotopes. The result is well reproduced by shell model predictions and therefore indicates a robust N = Z = 50 shell closure.

Place, publisher, year, edition, pages
2013. Vol. 110, no 17, 172501- p.
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Natural Sciences
URN: urn:nbn:se:uu:diva-200686DOI: 10.1103/PhysRevLett.110.172501ISI: 000317915200008OAI: oai:DiVA.org:uu-200686DiVA: diva2:624746
Available from: 2013-06-03 Created: 2013-06-03 Last updated: 2013-07-15Bibliographically approved

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Nyberg, Johan
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