naa a22 4500 510790135 CHVBK 20180411083316.0 cr unu---uuuuu 180411e20130301xx s 000 0 eng 10.1134/S1063773713030043 doi (NATIONALLICENCE)springer-10.1134/S1063773713030043 Influence of spontaneous fission rates on the yields of superheavy elements in the r -process [Elektronische Daten] [I. Panov, I. Korneev, G. Martinez-Pinedo, F. Thielemann] The formation of heavy elements in the neutron star merger scenario is considered. In such a scenario, the duration of the r-process is long and when the nucleosynthesis wave passes through the region of actinides, beta-delayed, neutron-induced, and spontaneous fission are added to the main r-process reaction channels. The dependence of the formation of superheavy elements on spontaneous fission model is investigated numerically. The formation of nuclei lighter than the cadmium-peak elements and cosmochronometer nuclei is shown to depend on strongly on the spontaneous fission model used in nucleosynthesis calculations. The regions of nuclei with short spontaneous fission half-lives prevent the formation of superheavy elements in the r-process, but the prediction of their yields is so far inaccurate because of an insufficient accuracy of calculating a number of transactinide parameters. The relative contributions from neutron-induced, beta-delayed, and spontaneous fission have been determined for various spontaneous fission models in the nucleosynthesis scenario considered. Pleiades Publishing, Ltd., 2013 nuclear astrophysics, nucleosynthesis nationallicence supernovae and supernova remnants nationallicence nuclear reactions, beta decay and fission nationallicence Panov I. Institute for Theoretical and Experimental Physics, ul. Bol'shaya Cheremushkinskaya 25, 117259, Moscow, Russia aut Korneev I. "Kurchatov Institute” National Research Center, pl. Kurchatova 1, 123182, Moscow, Russia aut Martinez-Pinedo G. Helmholtz Center GSI, Planckstr. 1, 64291, Darmstadt, Germany aut Thielemann F. Department of Physics, University of Basel, Klingelbergstr. 82, 4056, Basel, Switzerland aut Astronomy Letters SP MAIK Nauka/Interperiodica 39/3(2013-03-01), 150-160 1063-7737 39:3<150 2013 39 11443 https://doi.org/10.1134/S1063773713030043 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1134/S1063773713030043 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Panov I. Institute for Theoretical and Experimental Physics, ul. Bol'shaya Cheremushkinskaya 25, 117259, Moscow, Russia aut NATIONALLICENCE 700 1- Korneev I. "Kurchatov Institute” National Research Center, pl. Kurchatova 1, 123182, Moscow, Russia aut NATIONALLICENCE 700 1- Martinez-Pinedo G. Helmholtz Center GSI, Planckstr. 1, 64291, Darmstadt, Germany aut NATIONALLICENCE 700 1- Thielemann F. Department of Physics, University of Basel, Klingelbergstr. 82, 4056, Basel, Switzerland aut NATIONALLICENCE 773 0- Astronomy Letters SP MAIK Nauka/Interperiodica 39/3(2013-03-01), 150-160 1063-7737 39:3<150 2013 39 11443 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer