Speaker
Marco Siciliano
(LNL)
Description
The shell structure of nuclei with few nucleons outside the double-shell closure Z=N=50 has attracted a large interest. Several studies were performed in this region to examine the robustness of the proton shell closure when N=50 is approached.
The excitation energy of the 2+ states in the Sn isotopes as well as the reduced transition probabilities B(E2; 2+ → 0+) provide a clear evidence of the shell evolution along the whole isotopic chain.
The systematic of the first 2+ state excitation energy is well known and the behaviour is rather constant along all the Sn isotopic chain; on the contrary the information on the reduced transition probabilities for the neutron-deficient Sn isotopes suffer from large experimental uncertainties which makes the interpretation of the shell evolution controversial.
Summary
During the AGATA campaign at GANIL, the region in the vicinity of Z=N=50 has been investigated in order to obtain higher precision measurement of the B(E2; 2+ → 0+) and also a first measurement of the B(E2; 4+ -> 2+) for 106-108Sn, populated in a multi-nucleon
transfer reaction.
Primary authors
Alain Goasduff
(LNL)
Dino Bazzacco
(PD)
Jose' Javier Valiente Dobon
(LNL)
Marco Siciliano
(LNL)
Ms
Rosa Maria Pérez Vidal
(IFIC - Universidad de Valencia)
Co-authors
Dr
Andres F. Gadea Raga
(IFIC CSIC-University of Valencia)
Mr
Antoine Lemasson
(GANIL)
Mr
Bahadir Saygi
(Ege University)
Dr
Caterina Michelagnoli
(GANIL)
Dr
Christoph Fransen
(Institut für Kernphysik, Universität zu Köln)
Mr
Claus Müller-Gatermann
(University of Cologne)
Daniel Ricardo Napoli
(LNL)
Daniele Mengoni
(PD)
Dmitry Testov
(PD)
Ms
Dora Sohler
(Institute for Nuclear Research, Hungarian Academy of Sciences)
Dr
Emmanuel Clement
(GANIL)
Dr
Fabio Celso Luigi Crespi
(MI)
Dr
Georgi Georgiev
(CSNSM)
Giovanna Benzoni
(MI)
Ms
Goldkuhle Alina
(Institut fur Kernphysik, Universitat zu Koln)
Grzegorz Jaworski
(LNL)
Ms
Hongjie Li
(KTH)
Mr
Istvan Kuti
(Institute for Nuclear Research, Hungarian Academy of Sciences)
Johan Nyberg
(Uppsala University)
Dr
Marcin Palacz
(Heavy Ion Laboratory, University of Warsaw)
Mrs
Maria Doncel
(University of Salamanca)
Dr
Maurycy Rejmund
(GANIL)
Natalia Cieplicka
(IFJ PAN)
Dr
Navin Alahari
(GANIL)
Mr
Philipp Rudolf John
(PD)
Prof.
Sefa ERTURK
(Nigde University)
Dr
Suzana Szilner
(Ruder Boskovic Institute)
Ms
Tea Mijatovic
(Ruđer Bošković Institute)
Mr
Thomas Braunroth
(IKP)
Tommaso Marchi
(LNL)
Ms
Ulrika Jakobsson
(KTH)
