Coulomb excitation of Sn-104 and the strength of the Sn-100 shell closure
- G. Guastalla
- D.D. DiJulio
- M. Gorska
- J. Cederkall
- P. Boutachkov
- P. Golubev
- S. Pietri
- H. Grawe
- F. Nowacki
- K. Sieja
- A. Algora
- F. Ameil
- T. Arici
- A. Atac
- M.A. Bentley
- A. Blazhev
- D. Bloor
- S. Brambilla
- N. Braun
- F. Camera
- Z. Dombradi
- C. Domingo Pardo
- A. Estrade
- F. Farinon
- J. Gerl
- N. Goel
- J. Grebosz
- T. Habermann
- R. Hoischen
- K. Jansson
- J. Jolie
- A. Jungclaus
- I. Kojouharov
- R. Knoebel
- R. Kumar
- J. Kurcewicz
- N. Kurz
- N. Lalovic
- E. Merchan
- K. Moschner
- F. Naqvi
- B.S.N. Singh
- J. Nyberg
- C. Nociforo
- A. Obertelli
- M. Pfuetzner
- N. Pietralla
- Z. Podolyak
- A. Prochazka
- D. Ralet
- P. Reiter
- D. Rudolph
- H. Schaffner
- F. Schirru
- L. Scruton
- D. Sohler
- T. Swaleh
- J. Taprogge
- Z. Vajta
- R. Wadsworth
- N. Warr
- H. Weick
- A. Wendt
- O. Wieland
- J.S. Winfield
- H.J. Wollersheim
Publication date
January 2013
DOI Publisher
American Physical Society (APS)Abstract
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
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