Possibilities of direct production of superheavy nuclei with Z=112-118 in different evaporation channels; Physics Letters B; Vol. 809

Possibilities of direct production of superheavy nuclei with Z=112-118 in different evaporation channels; Physics Letters B; Vol. 809

Dades bibliogràfiques
Parent link:Physics Letters B
Vol. 809.— 2020.— [135760, 8 p.]
Autor corporatiu: Национальный исследовательский Томский политехнический университет Исследовательская школа физики высокоэнергетических процессов
Altres autors: Hong J. Juhee, Adamyan G. G. Gurgen Grigorjevich, Antonenko N. V. Nikolay Viktorovich, Jachimowicz P. Piotr, Kowal M. Michal
Sumari:Title screen
The production cross sections of heaviest isotopes of superheavy nuclei with charge numbers 112-118 are predicted in the xn-, pxn-, and αxn-evaporation channels of the 48Ca-induced complete fusion reactions for future experiments. The estimates of synthesis capabilities are based on a uniform and consistent set of input nuclear data. Nuclear masses, deformations, shell corrections, fission barriers and decay energies are calculated within the macroscopic-microscopic approach for even-even, odd-Z and odd-N nuclei. For odd systems the blocking procedure is used. To find saddle points, the Imaginary Water Flow technique is used and non-axiallity is taken into account. As shown, our calculations, based on a new set of mass and barriers, agree very well with the experimentally known cross-sections, especially in the 3n-evaporation channel. The dependencies of these predictions on the mass/fission barriers tables, the ratio af/a, and fusion models are discussed. A way is shown to produce directly unknown superheavy isotopes in the 1n- or 2n-evaporation channels. The synthesis of new superheavy isotopes unattainable in reactions with emission of neutrons is proposed in the promising channels with emission of protons (σpxn 10−200 fb) and alphas (σαxn 50−500 fb).
Idioma:anglès
Publicat: 2020
Matèries:
электронный ресурс
труды учёных ТПУ
superheavy nuclei
complete fusion reactions
production of new isotopes
xn–, pxn–, and axn–evaporation channels
сверхтяжелые ядра
реакции
изотопы
испарение
Accés en línia:https://doi.org/10.1016/j.physletb.2020.135760
Format: Electrònic Capítol de llibre
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=666540

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