학술논문
Lifetime measurements in Ti-52,Ti-54 to study shell evolution toward N=32
Document Type
Author
Goldkuhle, A.; Fransen, C.; Blazhev, A.; Beckers, M.; Birkenbach, B.; Braunroth, T.; Clement, E.; Dewald, A.; Dudouet, J.; Eberth, J.; Hess, H.; Jacquot, B.; Jolie, J.; Kim, Y-H; Lemasson, A.; Lenzi, S. M.; Li, H. J.; Litzinger, J.; Michelagnoli, C.; Mueller-Gatermann, C.; Singh, B. S. Nara; Perez-Vidal, R. M.; Ralet, D.; Reiter, P.; Vogt, A.; Warr, N.; Zell, K. O.; Atac, A.; Barrientos, D.; Barthe-Dejean, C.; Benzoni, G.; Boston, A. J.; Boston, H. C.; Bourgault, P.; Burrows, I; Cacitti, J.; Cederwall, B.; Ciemala, M.; Cullen, D. M.; De France, G.; Domingo-Pardo, C.; Foucher, J-L; Fremont, G.; Gadea, A.; Gangnant, P.; Gonzalez, V; Goupil, J.; Henrich, C.; Houarner, C.; Jean, M.; Judson, D. S.; Korichi, A.; Korten, W.; Labiche, M.; Lefevre, A.; Legeard, L.; Legruel, F.; Leoni, S.; Ljungvall, J.; Maj, A.; Maugeais, C.; Menager, L.; Menard, N.; Menegazzo, R.; Mengoni, D.; Million, B.; Munoz, H.; Napoli, D. R.; Navin, A.; Nyberg, Johan, 1955; Ozille, M.; Podolyak, Zs; Pullia, A.; Raine, B.; Recchia, F.; Ropert, J.; Saillant, F.; Salsac, M. D.; Sanchis, E.; Schmitt, C.; Simpson, J.; Spitaels, C.; Stezowski, O.; Theisen, Ch; Toulemonde, M.; Tripon, M.; Dobon, J-J Valiente; Voltolini, G.; Zielinska, M.
Source
Physical Review C. 100(5)
Subject
Language
English
ISSN
2469-9985
2469-9993
2469-9993
Abstract
Lifetimes of the excited states in the neutron-rich Ti-52,Ti-54 nuclei, produced in a multinucleon-transfer reaction, were measured by employing the Cologne plunger device and the recoil-distance Doppler-shift method. The experiment was performed at the Grand Accelerateur National d'Ions Lourds facility by using the Advanced Gamma Tracking Array for the gamma-ray detection, coupled to the large-acceptance variable mode spectrometer for an event-by-event particle identification. A comparison between the transition probabilities obtained from the measured lifetimes of the 2(1)(+) to 8(1)(+) yrast states in Ti-52,Ti-54 and that from the shell-model calculations based on the well-established GXPF1A, GXPF1B, and KB3G fp shell interactions support the N = 32 subshell closure. The B(E2) values for Ti-52 determined in this work are in disagreement with the known data, but are consistent with the predictions of the shell-model calculations and reduce the previously observed pronounced staggering across the even-even titanium isotopes.