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Forsberg, U.*; Rudolph, D.*; Andersson, L.-L.*; Di Nitto, A.*; Dllmann, Ch. E.*; Fahlander, C.*; Gates, J. M.*; Golubev, P.*; Gregorich, K. E.*; Gross, C. J.*; et al.
Nuclear Physics A, 953, p.117 - 138, 2016/09
Times Cited Count:41 Percentile:94.18(Physics, Nuclear)Alpha-decay chains observed in the element-115 production reactions of Ca +
Am were investigated using a new data set consisting of our recently reported data obtained at GSI and previously reported ones at Dubna and LBNL. Short decay chains of recoil-
-(
)-fission type, fourteen of which were observed, and some of which were interpreted as the 2-neutron evaporation products
Mc, have been reassigned. It is plausible that most of them were assigned to the 3-neutron evaporation products
Mc whose decay chain would on the way have branches of EC decays followed by fission.
Rudolph, D.*; Forsberg, U.*; Golubev, P.*; Sarmiento, L. G.*; Yakushev, A.*; Andersson, L.-L.*; Di Nitto, A.*; Dllmann, Ch. E.*; Gates, J. M.*; Gregorich, K. E.*; et al.
Journal of Radioanalytical and Nuclear Chemistry, 303(2), p.1185 - 1190, 2015/02
Times Cited Count:7 Percentile:54.12(Chemistry, Analytical)Thirty correlated -decay chains of element 115 were observed, which were consistent with previous observations interpreted as the decay chain of
115. GEANT4 Monte-Carlo simulations were performed to reproduce high-resolution
-photon coincidence results, which allows one to propose Q
values and excitation schemes of the superheavy nuclei with unprecedented precision.
Petrache, C. M.*; Ragnarsson, I.*; Ma, H.-L.*; Lguillon, R.; Zerrouki, T.*; Bazzacco, D.*; Lunardi, S.*
Physical Review C, 91(2), p.024302_1 - 024302_16, 2015/02
Times Cited Count:19 Percentile:78.42(Physics, Nuclear)Forsberg, U.*; Rudolph, D.*; Golubev, P.*; Sarmiento, L. G.*; Yakushev, A.*; Andersson, L.-L.*; Di Nitto, A.*; Dllmann, Ch. E.*; Gates, J. M.*; Gregorich, K. E.*; et al.
EPJ Web of Conferences, 66, p.02036_1 - 02036_4, 2014/03
Times Cited Count:7 Percentile:89.61A focal-plane Si detector setup applied to the spectroscopy of the element 115 -decay chains was reported. Results of the digital signal analysis for preamplifier signals and of the event-by-event
-energy loss correction analysis were presented. The detectors consist of five double-sided Si strip detectors (DSSSD) arranged as a box, and signals from one side of the detector at the bottom of the box were digitally processed. Energy losses of
particles detected by two Si detectors at the bottom and a side differs event-by-event, because each
particle passed through two dead layers with a certain tilted angle. By correcting for the energy loss of each
event using the angle of the
-particle emission extracted from the detected positions, we succeeded in improving the
energy resolution significantly.
Rudolph, D.*; Forsberg, U.*; Golubev, P.*; Sarmiento, L. G.*; Yakushev, A.*; Andersson, L.-L.*; Di Nitto, A.*; Dllmann, Ch. E.*; Gates, J. M.*; Gregorich, K. E.*; et al.
Acta Physica Polonica B, 45(2), p.263 - 272, 2014/02
Times Cited Count:22 Percentile:76.42(Physics, Multidisciplinary)Produced in the reaction of Ca beam with an
Am target, thirty correlated
-decay chains were observed. Observed decay chains are consistent with a previously reported decay chain, which confirms the identification of the element 115. In addition, an
-photon coincidence measurement was performed, and
rays as well as X-ray candidates were observed in this decay chain. The
-ray observation in the heaviest region of superheavy nuclei brings a big progress in the superheavy nuclear structure studies.
Rudolph, D.*; Forsberg, U.*; Golubev, P.*; Sarmiento, L. G.*; Yakushev, A.*; Andersson, L. L.*; Di Nitto, A.*; Dllmann, Ch. E.*; Gates, J. M.*; Gregorich, K. E.*; et al.
Physical Review Letters, 111(11), p.112502_1 - 112502_5, 2013/09
Times Cited Count:122 Percentile:96.6(Physics, Multidisciplinary)