Synthesis of nuclei of the superheavy element 114 in reactions induced by 48Ca

Oganessian, Yu. Ts.; Yeremin, A. V.; Popeko, A. G.; Bogomolov, S. L.; Buklanov, G. V.; Chelnokov, M. L.; Chepigin, V. I.; Gikal, B. N.; Gorshkov, V. A.; Gulbekian, G. G.; Иткис, М. Г.; Kabachenko, A.P.; Lavrentev, A. Yu.; Malyshev, O. N.; Roháč, J.; Sagaidak, R. N.; Hofmann, S.; Šáró, Š.; Giardina, G.; Morita, Kosuke

doi:10.1038/22281

Cited by 377 publications

(97 citation statements)

References 17 publications

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“…This mathematical trick was then widely adopted by nuclear spectroscopists, in particular for super-heavy-nuclei data analyses (see, e.g., Refs. [7][8][9][10][11]). …”

Section: Introductionmentioning

confidence: 99%

Statistical approaches to lifetime measurements with restricted observation times

et al. 2017

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Two generic methods based on frequentism and Bayesianism are presented in this work aiming to adequately estimate decay lifetimes from measured data, while accounting for restricted observation times in the measurements. All the experimental scenarios that can possibly arise from the observation constraints are treated systematically and formulas are derived. The methods are then tested against the decay data of bare isomeric 94m Ru 44+ , which were measured using isochronous mass spectrometry with a timing detector at the CSRe in Lanzhou, China. Applying both methods in three distinct scenarios yields six different but consistent lifetime estimates. The deduced values are all in good agreement with a prediction based on the neutral-atom value modified to take the absence of internal conversion into account. Potential applications of such methods are discussed.

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“…This mathematical trick was then widely adopted by nuclear spectroscopists, in particular for super-heavy-nuclei data analyses (see, e.g., Refs. [7][8][9][10][11]). …”

Section: Introductionmentioning

confidence: 99%

Statistical approaches to lifetime measurements with restricted observation times

et al. 2017

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“…Elements 108 (Hs) [5][6][7], 109 (Mt) [8][9][10], 110 (Ds) [11], 111 (Rg) [12], 112 [13][14][15], 113 [16], 114 [17][18][19][20], 115 [3], 116 [21][22][23], 117 [24] and 118 [25,23] have been observed in a series of experiments in Berkeley, GSI, Dubna and RIKEN. Chemistry of transactinide elements 104 (Rf) to 108 has been performed one atom at a time (see, e.g., [26] for a review).…”

Section: Introductionmentioning

confidence: 99%

Are MCDF calculations 101% correct in the super-heavy elements range?

2011

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We explore QED and many-body effects in superheavy elements up to Z = 173 using the multiconfiguration Dirac-Fock method. We study the effect of going beyond the average-level approximation on the determination of the ground state of element 140, and compare with the recent work of Pekka Pyykkö on the periodic table for super heavy elements [1]. We confirm that QED corrections are of the order of 1% on ionization energies. We show that the atomic number at which the 1s shell dives into the negative energy continuum is 173, and is not affected by the approximation employed to evaluate the electron-electron interaction.

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“…Considerable progress in the experimental synthesis of heaviest nuclei has been achieved recently by the Flerov Laboratory in Dubna [1,2,3,4,5,6,7,8,9,10,11] and was partially confirmed in the laboratories at GSI [12,13,14,15,16], LBNL [17] and RIKEN [18]. Nonetheless, the fundamental question of what is the largest possible atomic number of an atomic nucleus is still unanswered.…”

Section: Introductionmentioning

confidence: 99%

“…We map the deformation landscape by adding a quadrupole constraint stretching the system successively to scission. The PES is then obtained as a function of the mass quadrupole moment defined as the average value of the quadrupole operator q 2 …”

Section: Skyrme Type Functionalmentioning

confidence: 99%

Fission barriers and probabilities of spontaneous fission for elements with Z≥ 100

et al. 2015

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This is a short review of methods and results of calculations of fission barriers and fission halflives of even-even superheavy nuclei. An approvable agreement of the following approaches is shown and discussed: The macroscopic-microscopic approach based on the stratagem of the shell correction to the liquid drop model and a vantage point of microscopic energy density functionals of Skyrme and Gogny type selfconsistently calculated within Hartree-Fock-Bogoliubov method. Mass parameters are calculated in the Hartree-Fock-Bogoliubov cranking approximation. A short part of the paper is devoted to the nuclear fission dynamics. We also discuss the predictive power of Skyrme functionals applied to key properties of the fission path of 266 Hs. It applies the standard techniques of error estimates in the framework of a χ 2 analysis.

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Synthesis of nuclei of the superheavy element 114 in reactions induced by 48Ca

Cited by 377 publications

References 17 publications

Statistical approaches to lifetime measurements with restricted observation times

Statistical approaches to lifetime measurements with restricted observation times

Are MCDF calculations 101% correct in the super-heavy elements range?

Fission barriers and probabilities of spontaneous fission for elements with Z≥ 100

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