# New Result in the Production and Decay of an Isotope, 278113, of the 113th Element

@article{Morita2012NewRI,
title={New Result in the Production and Decay of an Isotope, 278113, of the 113th Element},
author={Kosuke Morita and Kouji Morimoto and Daiya Kaji and H Haba and K. Ozeki and Yuki Kudou and Takayuki Sumita and Yasuo Wakabayashi and Akira Yoneda and Kengo Tanaka and S. Yamaki and Ryutaro Sakai and Takahiro Akiyama and Shin-ichi Goto and Hiroo Hasebe and Minghui Huang and Tianheng Huang and E. Ideguchi and Yoshitaka Kasamatsu and Kenji Katori and Yoshiki Kariya and Hidetoshi Kikunaga and Hiroyuki Koura and Hisaaki Kudo and Akihiro Mashiko and Keita Mayama and Shin-ichi Mitsuoka and T{\^o}ru Moriya and Masashi Murakami and Hirohumi Murayama and Saori Namai and Akira Ozawa and Nozomi Sato and Keisuke Sueki and Mirei Takeyama and Fuyuki Tokanai and Takayuki Yamaguchi and Atsushi Yoshida},
journal={Journal of the Physical Society of Japan},
year={2012},
volume={81},
pages={103201}
}
An isotope of the 113th element, i.e., 278 113, was produced in a nuclear reaction with a 70 Zn beam on a 209 Bi target. We observed six consecutive α-decays following the implantation of a heavy particle in nearly the same position in the semiconductor detector under an extremely low background condition. The fifth and sixth decays are fully consistent with the sequential decays of 262 Db and 258 Lr in both decay energies and decay times. This indicates that the present decay chain consisted… Expand
112 Citations

#### Figures and Tables from this paper

Discovery of new element, nihonium, and perspectives (PLENARY)
• Engineering
• 2018
A new element 113 was searched by the reaction of Zn on Bi using a gas-filled recoil ion separator at the RIKEN linear accelerator facility. Totally three decay chains due to 113 were observed. TheExpand
New Result on the Production of 277Cn by the 208Pb + 70Zn Reaction
The production and decay properties of an isotope of the 112th element, 277Cn, were investigated using a gas-filled recoil ion separator by irradiation of 208Pb targets with 70Zn beams at 347.5,Expand
Predictions on the alpha decay half lives of superheavy nuclei with Z = 113 in the range 255 ≤ A ≤ 314
• Physics
• 2016
Abstract An intense study of the alpha decay properties of the isotopes on superheavy element with Z = 113 has been performed within the Coulomb and proximity potential model for deformed nucleiExpand
Fusion reaction Ca 48 + Bk 249 leading to formation of the element Ts (Z=117)
The heaviest currently known nuclei, which have up to 118 protons, have been produced in 48Ca induced reactions with actinide targets. Among them, the element tennessine (Ts), which has 117 protons,Expand
The importance of closed shell structures in the synthesis of super heavy elements
• Physics
• 2014
The importance of shell closures and gaps in the single-particle energies for protons and neutrons on the stability of elements beyond Z = 100 will be described. Following the development ofExpand
The role of ion sources in synthesis of the super-heavy elements.
• Materials Science, Medicine
• The Review of scientific instruments
• 2020
Because of the heaviest target for experiments on synthesis of SHE in heavy ion reactions is 249Cf, so further progress in the synthesis of elements with Z > 118 requires the production of intense beams of accelerated neutron enriched isotopes, such as 50Ti, 58Fe, and 64Ni. Expand
Experimental survey of the production of α -decaying heavy elements in U 238 + Th 232 reactions at 7.5–6.1 MeV/nucleon
The production of alpha particle decaying heavy nuclei in reactions of 7.5-6.1 MeV/nucleon $^{238}$U +$^{232}$Th has been explored using an in-beam detection array composed of YAP scintillators andExpand
The discovery of elements 107 to 112
In the 1960s, theoretical concepts prepared the path to nuclear matter with proton and neutron numbers far beyond the nuclei known at that time. The new laboratory GSI was founded for research onExpand
Super-heavy nuclei
Scientifically based searches for elements beyond uranium started after the discovery of the neutron. Neutrons captured by uranium nuclei and subsequent decay, similarly as most of the elements wereExpand
Production of heavy neutron-rich nuclei in transfer reactions within the dinuclear system model
• Physics
• 2015
The dynamics of nucleon transfer processes in heavy-ion collisions is investigated within the dinuclear system model. The production cross sections of nuclei in the reactions 136Xe+208Pb andExpand

#### References

SHOWING 1-10 OF 11 REFERENCES
Experiment on the Synthesis of Element 113 in the Reaction 209Bi(70Zn,n)278113
The convincing candidate event of the isotope of the 113th element, 278 113, and its daughter nuclei, 274 111 and 270 Mt, were observed, for the first time, in the 209 Bi + 70 Zn reaction at a beamExpand
Production and decay properties of 272111 and its daughter nuclei
The production and decay of 272 111 has been investigated using a gas-filled recoil ion separator in irradiations of 209 Bi targets with 64 Ni beam at 320, 323 and 326 MeV. We have observed 14Expand
Evidence for new isotopes of element 107: 266Bh and 267Bh
• Wilk, +12 authors Hoffman
• Physics, Medicine
• Physical review letters
• 2000
New neutron rich isotopes 267107Bh and 266107Bh were produced in bombardments of a 249Bk target with 117-MeV and 123-MeV 22Ne ions at the Lawrence Berkeley National Laboratory 88-Inch Cyclotron.Expand
Decay Properties of 266 Bh and 262 Db Produced in the 248 Cm + 23 Na Reaction
Decay properties of an isotope 266 Bh and its daughter nucleus 262 Db produced by the 248 Cm( 23 Na,5 n ) reaction were studied by using a gas-filled recoil separator coupled with aExpand
Production and decay of the isotope 271Ds (Z = 110)
Abstract.Production and decay of the isotope 271Ds were studied. The isotope was produced by 208Pb + 64Ni $\rightarrow$271Ds + n reaction. Fourteen $\alpha$-decay chains have been assigned to decaysExpand
Nuclear Data Sheets for A = 250, 254, 258, 262, 266
Abstract Information pertaining to the nuclear structure of all nuclei with mass numbers A=250, 254, 258, 262 and 266 is presented. Various decay and reaction data are evaluated and compared. AdoptedExpand
Observation of Second Decay Chain from 278113
RIKEN (The Institute of Physical and Chemical Research), Wako, Saitama 351-0198 Department of Physics, Saitama University, Saitama 338-8570 Center for Instrumental Analysis, Niigata University,Expand
Pulse-height defects for heavy ions in a silicon surface-barrier detector
• Materials Science
• 1971
Abstract The pulse-height vs energy response of a surface-barrier detector was measured for the ions He, C, O, Al, S, Ni, Cu, Ag, Au and U. The detector was a “heavy-ion” type, with high fieldExpand
Some remarks on the error analysis in the case of poor statistics
• Mathematics
• 1984
A prescription for the error analysis of experimental data in the case of stochastic background is formulated. Several relations are given which allow to establish the significance of mother-daughterExpand