Coulomb Excitation of Sn-104 and the Strength of the Sn-100 Shell Closure

Guastalla, G.; DiJulio, D.; Gorska, M.; Cederkall, J.; Boutachkov, P.; Golubev, P.; Pietri, S.; Grawe, H.; Nowacki, F.; Sieja, K.; Algora, A.; Ameil, F.; Arici, T.; Atac, A.; Bentley, M.; Blazhev, A.; Bloor, D.; Brambilla, S.; Braun, N.; Camera, F.; Dombradi, Zs.; Domingo Pardo, C.; Estrade, A.; Farinon, F.; Gerl, J.; Goel, N.; Grebosz, J.; Habermann, T.; Hoischen, R.; Jansson, K.; Jolie, J.; Jungclaus, A.; Kojouharov, I.; Knoebel, R.; Kumar, R.; Kurcewicz, J.; Kurz, N.; Lalovic, N.; Merchan, E.; Moschner, K.; Naqvi, F.; Singh, B.; Nyberg, J.; Nociforo, C.; Obertelli, A.; Pfuetzner, M.; Pietralla, N.; Podolyak, Z.; Prochazka, A.; Ralet, D.; Reiter, P.; Rudolph, D.; Schaffner, H.; Schirru, F.; Scruton, L.; Sohler, D.; Swaleh, T.; Taprogge, J.; Vajta, Zs.; Wadsworth, R.; Warr, N.; Weick, H.; Wendt, A.; Wieland, O.; Winfield, J.; Wollersheim, H.

doi:10.1103/physrevlett.110.172501

Coulomb Excitation of Sn-104 and the Strength of the Sn-100 Shell Closure

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Guastalla G., DiJulio D. D., Gorska M., Cederkall J., Boutachkov P., Golubev P., ...More

PHYSICAL REVIEW LETTERS, vol.110, no.17, 2013 (SCI-Expanded)

Publication Type: Article / Article
Volume: 110 Issue: 17
Publication Date: 2013
Doi Number: 10.1103/physrevlett.110.172501
Journal Name: PHYSICAL REVIEW LETTERS
Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
Istanbul University Affiliated: No

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. DOI: 10.1103/PhysRevLett.110.172501