Shape parameters of a weakly deformed ground-state band and highly deformed slightly triaxial sideband in Ca42 were determined from E2 matrix elements measured in the first low-energy Coulomb excitation experiment performed with AGATA. The picture of two coexisting structures is well reproduced by new state-of-the-art large-scale shell model and beyond-mean-field calculations. Experimental evidence for superdeformation of the band built on 02+ has been obtained and the role of triaxiality in the A∼40 mass region is discussed. Furthermore, the potential of Coulomb excitation as a tool to study superdeformation has been demonstrated for the first time.
Superdeformed and Triaxial States in Ca 42 / K. Hadyńska Klk, P.J. Napiorkowski, M. Zielińska, J. Srebrny, A. Maj, F. Azaiez, J.J. Valiente Dobón, M. Kicińska Habior, F. Nowacki, H. Naïdja, B. Bounthong, T.R. Rodríguez, G. De Angelis, T. Abraham, G. Anil Kumar, D. Bazzacco, M. Bellato, D. Bortolato, P. Bednarczyk, G. Benzoni, L. Berti, B. Birkenbach, B. Bruyneel, S. Brambilla, F. Camera, J. Chavas, B. Cederwall, L. Charles, M. Ciemała, P. Cocconi, P. Coleman Smith, A. Colombo, A. Corsi, F.C.L. Crespi, D.M. Cullen, A. Czermak, P. Désesquelles, D.T. Doherty, B. Dulny, J. Eberth, E. Farnea, B. Fornal, S. Franchoo, A. Gadea, A. Giaz, A. Gottardo, X. Grave, J. Grbosz, A. Görgen, M. Gulmini, T. Habermann, H. Hess, R. Isocrate, J. Iwanicki, G. Jaworski, D.S. Judson, A. Jungclaus, N. Karkour, M. Kmiecik, D. Karpiński, M. Kisieliński, N. Kondratyev, A. Korichi, M. Komorowska, M. Kowalczyk, W. Korten, M. Krzysiek, G. Lehaut, S. Leoni, J. Ljungvall, A. Lopez Martens, S. Lunardi, G. Maron, K. Mazurek, R. Menegazzo, D. Mengoni, E. Merchán, W. Mczyński, C. Michelagnoli, J. Mierzejewski, B. Million, S. Myalski, D.R. Napoli, R. Nicolini, M. Niikura, A. Obertelli, S.F. Özmen, M. Palacz, L. Próchniak, A. Pullia, B. Quintana, G. Rampazzo, F. Recchia, N. Redon, P. Reiter, D. Rosso, K. Rusek, E. Sahin, M. Salsac, P. Söderström, I. Stefan, O. Stézowski, J. Styczeń, C. Theisen, N. Toniolo, C.A. Ur, V. Vandone, R. Wadsworth, B. Wasilewska, A. Wiens, J.L. Wood, K. Wrzosek Lipska, M. Zibliński. - In: PHYSICAL REVIEW LETTERS. - ISSN 0031-9007. - 117:6(2016 Aug), pp. 062501.1-062501.7. [10.1103/PhysRevLett.117.062501]
Superdeformed and Triaxial States in Ca 42
G. Benzoni;F. Camera;A. Corsi;F.C.L. Crespi;A. Giaz;S. Leoni;R. Nicolini;A. Pullia;V. Vandone;
2016
Abstract
Shape parameters of a weakly deformed ground-state band and highly deformed slightly triaxial sideband in Ca42 were determined from E2 matrix elements measured in the first low-energy Coulomb excitation experiment performed with AGATA. The picture of two coexisting structures is well reproduced by new state-of-the-art large-scale shell model and beyond-mean-field calculations. Experimental evidence for superdeformation of the band built on 02+ has been obtained and the role of triaxiality in the A∼40 mass region is discussed. Furthermore, the potential of Coulomb excitation as a tool to study superdeformation has been demonstrated for the first time.
| File | Dimensione | Formato | |
|---|---|---|---|
|
PhysRevLett.117.062501.pdf
accesso riservato
Tipologia:
Publisher's version/PDF
Dimensione
462.09 kB
Formato
Adobe PDF
|
462.09 kB | Adobe PDF | Visualizza/Apri Richiedi una copia |
|
PhysRevLett.117.062501-accepted.pdf
accesso aperto
Tipologia:
Post-print, accepted manuscript ecc. (versione accettata dall'editore)
Dimensione
327.31 kB
Formato
Adobe PDF
|
327.31 kB | Adobe PDF | Visualizza/Apri |
Pubblicazioni consigliate
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
