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-decay of
TeCox, I.*; Grzywacz, R.*; King, T. T.*; Rykaczewski, K. P.*; Nishio, Katsuhisa; 30 of others*
Nature, 654(8117), p.52 - 56, 2026/06
Times Cited Count:0 Percentile:0.00(Multidisciplinary Sciences)
Bk and
AmWang, J. G.*; Zhang, Z. Y.*; Andreyev, A. N.; 33 of others*
Physics Letters B, 875, p.140365_1 - 140365_6, 2026/04
Times Cited Count:2 Percentile:81.50(Astronomy & Astrophysics)The new isotopes
Bk and
Am were investigated using the gas-filled recoil separator SHANS2. They were identified by measuring radioactive decay chains originating from
Bk produced via the
Au(
Ar,2n)
Bk reaction. The
energy and half-life were determined for these isotopes. A systematic analysis reveals significant discrepancies between the experimental data and the theoretical predictions for the isotopes of Bk and Am, which warrant further investigation.
-decay branching ratio of
PtCubiss, J. G.*; Harding, R. D.*; Andreyev, A. N.; Althubiti, N.*; Andel, B.*; Antalic, S.*; Barzakh, A. E.*; Cocolios, T. E.*; Day Goodacre, T.*; Farooq-Smith, G. J.*; et al.
Physical Review C, 101(1), p.014314_1 - 014314_4, 2020/01
Times Cited Count:5 Percentile:37.79(Physics, Nuclear)The
-decay branching ratio of 0.52(5)% from the ground state of
Pt to the ground state of the daughter nucleus
Os has been determined more precisely than before. The
Pt was produced as the
-decay granddaughter of
Hg which was produced and separated with the CERN-ISOLDE facility. The reduced
-decay width calculated with the present result has provided a new picture of the systematics for the
-decay width of neutron-deficient Pt isotopes.
decay of
USun, M. D.*; Liu, Z.*; Huang, T. H.*; Zhang, W. Q.*; Andreyev, A. N.; Ding, B.*; Wang, J. G.*; Liu, X. Y.*; Lu, H. Y.*; Hou, D. S.*; et al.
Physics Letters B, 800, p.135096_1 - 135096_5, 2020/01
Times Cited Count:15 Percentile:74.21(Astronomy & Astrophysics)
decay of
AtCubiss, J. G.*; Andreyev, A. N.; Barzakh, A. E.*; Andel, B.*; Antalic, S.*; Cocolios, T. E.*; Day Goodacre, T.*; Fedorov, D. V.*; Fedosseev, V. N.*; Ferrer, R.*; et al.
Physical Review C, 99(6), p.064317_1 - 064317_6, 2019/06
Times Cited Count:6 Percentile:42.42(Physics, Nuclear)An
decay of
At was studied at the CERN-ISOLDE facility using a laser-ionization technique. Coincidence
-
data were collected for the first time and a more precise half-life value of T
= 1.27(6) s was measured. A new
-decay scheme was deduced based on the fine-structure of the
decay. The results lead to a preferred spin and parity assignment of J
= (3
) for the ground state of
At; however, J
= (2)
cannot be fully excluded.
Van Duppen, P.*; Andreyev, A. N.
The Euroschool of Exotic Beams, Vol.5, p.65 - 116, 2018/04
-fission and recoil-
-
-fission events observed in the reaction
Ca +
AmForsberg, U.*; Rudolph, D.*; Andersson, L.-L.*; Di Nitto, A.*; D
llmann, 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:60 Percentile:94.93(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.
-decay study of
TlVan Beveren, C.*; Andreyev, A. N.; Barzakh, A. E.*; Cocolios, T. E.*; de Groote, R. P.*; Fedorov, D.*; Fedosseev, V. N.*; Ferrer, R.*; Ghys, L.*; Huyse, M.*; et al.
Journal of Physics G; Nuclear and Particle Physics, 43(2), p.025102_1 - 025102_22, 2016/02
Times Cited Count:12 Percentile:59.81(Physics, Nuclear)
from alpha spectroscopyAsai, Masato; He
berger, F. P.*; Lopez-Martens, A.*
Nuclear Physics A, 944, p.308 - 332, 2015/12
Times Cited Count:69 Percentile:95.87(Physics, Nuclear)Nuclear structure of Z = 100-109 nuclei studied through
-decay spectroscopy have been reviewed. Experimental techniques and methods concerning separation techniques, summing effects in
spectra, and the use of digital electronics for
-decay spectroscopy have been described in detail. The presentation of the experimental results and the physics discussion were focused on nuclear structure systematics in even-Z nuclei along the N = 151, 153, and 155 isotonic lines, where most progress has been achieved in the last 10 years.
decays of
AmAsai, Masato; Sakama, Minoru*; Tsukada, Kazuaki; Ichikawa, Shinichi; Haba, Hiromitsu*; Nishinaka, Ichiro; Nagame, Yuichiro; Goto, Shinichi*; Kojima, Yasuaki*; Oura, Yasuji*; et al.
European Physical Journal A, 22(3), p.411 - 416, 2004/12
Times Cited Count:10 Percentile:52.75(Physics, Nuclear)EC and
decays of
Am have been studied by means of
-ray spectroscopy. Excited states in
Pu have been established for the first time, and tentative spin-parity and Nilsson assignments were given to these levels. The ground state of
Am was evaluated to be the
state from the experimental results. It was found that the
state in
Np is located at
15~keV, which allowed us to determine the
value of
Am as 6569
~keV, in combination with the measured
-particle energy.
decays of neutron-deficient transuranium isotopesAsai, Masato; Sakama, Minoru; Tsukada, Kazuaki; Ichikawa, Shinichi; Haba, Hiromitsu; Nishinaka, Ichiro; Nagame, Yuichiro; Goto, Shinichi; Kojima, Yasuaki*; Oura, Yasuji*; et al.
Journal of Nuclear Science and Technology, 39(Suppl.2), p.474 - 477, 2002/08
Neutron-deficient americium and curium isotopes with half-lives
10 min have been produced with the tandem accelerator, and their EC and weak
decays have been successfully measured through an on-line isotope separation. Decay schemes of
Am have been established, and proton-neutron configurations in the parent and daughter nuclei have been determined. Observed
transitions in
Am were found to be the favored transitions between the
Nilsson states. Information on nuclear structure, deformation, and atomic masses in this region were obtained.
Asai, Masato; Sakama, Minoru*; Tsukada, Kazuaki; Ichikawa, Shinichi; Haba, Hiromitsu; Nishinaka, Ichiro; Nagame, Yuichiro; Goto, Shinichi*; Akiyama, Kazuhiko; Toyoshima, Atsushi; et al.
Journal of Nuclear and Radiochemical Sciences, 3(1), p.187 - 190, 2002/06
EC and
decays of neutron-deficient americium, curium, and berkelium nuclei have been studied using the JAERI on-line isotope separator. Decay schemes of
Am have been established for the first time, and proton-neutron configurations in
Am and
Pu have been determined.
transitions observed in
Am were found to be the favored transitions between the
Nilsson states.
values of
Cm have been determined. Nuclear structure, deformation, and atomic masses for these nuclei were discussed.
Mitsuoka, Shinichi; Ikezoe, Hiroshi; Ikuta, T.*; Hamada, Shingo; Nagame, Yuichiro; Tsukada, Kazuaki; Nishinaka, Ichiro; Otsuki, Tsutomu*
Journal of Radioanalytical and Nuclear Chemistry, 239(1), p.155 - 157, 1999/00
Times Cited Count:0 Percentile:0.00(Chemistry, Analytical)no abstracts in English
Maruyama, Yu; ; Moriyama, Kiyofumi; H.S.Park*; Kudo, Tamotsu; Y.Yang*; Sugimoto, Jun
JAERI-Conf 98-009, p.100 - 106, 1998/00
no abstracts in English
-decay properties of the new neutron deficient isotope
PaMitsuoka, Shinichi; Ikezoe, Hiroshi; ; Nagame, Yuichiro; Tsukada, Kazuaki; Nishinaka, Ichiro; Oura, Yasutsugu*
Physical Review C, 55(3), p.1555 - 1558, 1997/03
Times Cited Count:29 Percentile:80.06(Physics, Nuclear)no abstracts in English
decay of a new isotope
ThIkezoe, Hiroshi; ; Hamada, S.; Nagame, Yuichiro; Nishinaka, Ichiro; Tsukada, Kazuaki; Oura, Yasutsugu*
Physical Review C, 54(4), p.2043 - 2046, 1996/10
Times Cited Count:22 Percentile:73.41(Physics, Nuclear)no abstracts in English
Sekine, Toshiaki
Dai-4-Pan Jikken Kagaku Kouza, 14; Kaku, Hoshasen, p.83 - 111, 1992/00
no abstracts in English
; ; ;
JAERI-M 9911, 32 Pages, 1982/02
no abstracts in English
Harada, Kichinosuke; Rauscher, E. A.*
Phys.Rev., 169(4), p.818 - 824, 1968/00
Times Cited Count:58no abstracts in English
RfAsai, Masato; Tsukada, Kazuaki; Sato, Nozomi*; Sato, Tetsuya; Toyoshima, Atsushi; Ishii, Tetsuro; Miyashita, Sunao*; Kaneya, Yusuke*; Shima, Yosuke*; Shibata, Michihiro*
no journal, ,
We have obtained new experimental data for nuclear structure of
Rf through
-decay spectroscopy. We have reconfirmed existence of two
transitions in the
decay of
Rf through
-
coincidence measurement, and determined the
-transition energy very precisely through high-resolution
-fine structure measurement. On the basis of these experimental results, we have estimated spin-parities and neutron single-particle configurations of the ground- and isomeric states of
Rf, and have obtained information on the single-particle configurations and nuclear deformations for heavier superheavy nuclei.