Isomer spectroscopy in 133Ba and high-spin structure of 134Ba (CROSBI ID 269581)
Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Kaya, L. ; Vogt, A. ; Reiter, P. ; Siciliano, M. ; Shimizu, N. ; Utsuno, Y. ; Wang, H.-K. ; Gargano, A. ; Coraggio, L. ; Itaco, N. ; Arnswald, K. ; Bazzacco, D. ; Birkenbach, B. ; Blazhev, A. ; Bracco, A. ; Bruyneel, B. ; Corradi, L. ; Crespi, F. C. L. ; de Angelis, G. ; Droste, M. ; Eberth, J. ; Esmaylzadeh, A. ; Farnea, E. ; Fioretto, E. ; Fransen, C. ; Gadea, A. ; Giaz, A. ; Gorgen, A. ; Gottardo, A. ; Hadynska-Klek, K. ; Hess, H. ; Hirsch, R. ; John, P. R. ; Jolie, J. ; Jungclaus, A. ; Karayonchev, V. ; Kornwebel, L. ; Korten, W. ; Leoni, S. ; Lewandowski, L. ; Lunardi, S. ; Menegazzo, R. ; Mengoni, D. ; Michelagnoli, C. ; Mijatović, Tea ; Montagnoli, G. ; Montanari, D. ; Muller-Gatermann, C. ; Napoli, D. ; Podolyk, Zs. ; Pollarolo, G. ; Recchia, F. ; Regis, J.-M. ; Saed-Samii, N. ; Sahin, E. ; Scarlassara, F. ; Schomacker, K. ; Seidlitz, M. ; Siebeck, B. ; Soderstrom, P.-A. ; Stefanini, A. M. ; Stezowski, O. ; Szilner, Suzana ; Szpak, B. ; Teruya, E. ; Ur, C. ; Valiente-Dobon, J. J. ; Wolf, K. ; Yanase, K. ; Yoshinaga, N. ; Zell, K. O.
engleski
Isomer spectroscopy in 133Ba and high-spin structure of 134Ba
The transitional nuclei 134Ba and 133Ba are investigated after multinucleon transfer employing the high-resolution Advanced GAmma Tracking Array coupled to the magnetic spectrometer PRISMA at the Laboratori Nazionali di Legnaro, Italy, and after fusion-evaporation reaction at the FN tandem accelerator of the University of Cologne, Germany. The Jπ=19/2+ state at 1942 keV in 133Ba is identified as an isomer with a half-life of 66.6(20)ns corresponding to a B(E1) value of 7.7(4)×10−6e2fm2 for the Jπ=19/2+ to Jπ=19/2− transition. The level scheme of 134Ba above the Jπ=10+ isomer is extended to approximately 6 MeV. A pronounced backbending is observed at ℏω=0.38 MeV along the positive-parity yrast band. The results are compared to the high-spin systematics of the Z=56 isotopes. Large-scale shell-model calculations employing the GCN50:82, SN100PN, SNV, PQM130, Realistic SM, and EPQQM interactions reproduce the experimental findings and elucidate the structure of the high-spin states. The shell-model calculations employing the GCN50:82 and PQM130 interactions reproduce alignment properties and provide detailed insight into the microscopic origin of this phenomenon in transitional 134Ba.
multinucleon transfer reactions ; structure of Ba isotopes
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Podaci o izdanju
100 (2)
2019.
024323
18
objavljeno
2469-9985
2469-9993
10.1103/PhysRevC.100.024323
