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Prompt and delayed spectroscopy of 203At : Observation of a shears band and a 29/2+ isomeric state
Auranen, Kalle; Uusitalo, Juha; Juutinen, Sakari; Badran, Hussam; Bisso, F. Defranchi; Cox, Daniel; Grahn, Tuomas; Greenlees, Paul; Herzan, Andrej; Jakobsson, U.; Julin, Rauno; Konki, Joonas; Leino, Matti; Lightfoot, A.; Mallaburn, M. J.; Neuvonen, O.; Pakarinen, Janne; Papadakis, Philippos; Partanen, Jari; Rahkila, Panu; Sandzelius, Mikael; Sarén, Jan; Scholey, Catherine; Sorri, Juha; Stolze, Sanna; Wang, Y. K. (American Physical Society, 2018)Using fusion-evaporation reactions, a gas-filled recoil separator, recoil-gating technique and recoil-isomer decay tagging technique we have extended the level scheme of 203 At ( N = 118 ) significantly. We have ... -
Experimental observation of the M1 scissors mode in 254No
Bello, Garrote F.L.; Lopez-Martens, A.; Larsen, A.C.; Deloncle, I.; Péru, S.; Zeiser, F.; Greenlees, P.T.; Kheswa, B.V.; Auranen, K.; Bleuel, D.L.; Cox, D.M.; Crespo, Campo L.; Giacoppo, F.; Görgen, A.; Grahn, T.; Guttormsen, M.; Hagen, T.W.; Harkness-Brennan, L.; Hauschild, K.; Henning, G.; Herzberg, R.-D.; Julin, R.; Juutinen, S.; Laplace, T.A.; Leino, M.; Midtbø, J.E.; Modamio, V.; Pakarinen, J.; Papadakis, P.; Partanen, J.; Renstrøm, T.; Rezynkina, K.; Sandzelius, M.; Sarén, J.; Scholey, C.; Siem, S.; Sorri, J.; Stolze, S.; Uusitalo, J. (Elsevier, 2022)We present the first experimental evidence of the scissors mode in the superheavy nucleus 254No produced in the 208Pb(48Ca, 2nγ))254No reaction. The spectrum of γ rays emitted by the excited 254No nuclei shows an enhanced ... -
Experimental evidence for transverse wobbling bands in 136Nd
Lv, B. F.; Petrache, C. M.; Budaca, R.; Astier, A.; Zheng, K. K.; Greenlees, P.; Badran, H.; Calverley, T.; Cox, D. M.; Grahn, T.; Hilton, J.; Julin, R.; Juutinen, S.; Konki, J.; Pakarinen, J.; Papadakis, P.; Partanen, J.; Rahkila, P.; Ruotsalainen, P.; Sandzelius, M.; Saren, J.; Scholey, C.; Sorri, J.; Stolze, S.; Uusitalo, J.; Cederwall, B.; Ertoprak, A.; Liu, H.; Guo, S.; Wang, J. G.; Ong, H. J.; Zhou, X. H.; Sun, Z. Y.; Kuti, I.; Timár, J.; Tucholski, A.; Srebrny, J.; Andreoiu, C. (American Physical Society (APS), 2022)The nature of two high-spin bands in 136Nd built on the two-quasiparticle configuration πh211/2, predicted by the triaxial projected shell model as good candidates of transverse wobbling bands, are investigated experimentally. ... -
Estimating mean lifetime from partially observed events in nuclear physics
Karvanen, Juha; Niilo‐Rämä, Mikko; Sarén, Jan; Kärkkäinen, Salme (John Wiley & Sons, 2022)The mean lifetime is an important characteristic of particles to be identified in nuclear physics. State-of-the-art particle detectors can identify the arrivals of single radioactive nuclei as well as their subsequent ... -
Ion traps in nuclear physics : recent results and achievements
Eronen, Tommi; Kankainen, Anu; Äystö, Juha (Pergamon, 2016)Ion traps offer a way to determine nuclear binding energies through atomic mass measurements with a high accuracy and they are routinely used to provide isotopically or even isomerically pure beams of short-living ions for ...