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Lopez-Martens, A.; Yeremin, A.V.; Tezekbayeva, M.S.; Asfari, Z.; Brionnet, P.; Dorvaux, O.; Gall, B.; Hauschild, K.; Ackermann, D.; Caceres, L.; Chelnokov, M.L.; Chepigin, V.I.; Gustova, M.V.; Isaev, A.V.; Karpov, A.V.; Kuznetsova, A.A.; Piot, J.; Malyshev, O.N.; Popeko, A.G.; Popov, Yu.A.; Rezynkina, K.; Savajols, H.; Svirikhin, A.I.; Sokol, E.A.; Steinegger, P.
Physics letters. B, 08/2019, Volume: 795Journal Article
The analysis of fission events following the implantation of evaporation residues produced in the fusion reaction of 50Ti and 209Bi at different bombarding energies has revealed 5 millisecond decays, which are attributed to the spontaneous fission of proton-evaporation channels. The average cross sections for proton evaporation are found to be ∼100 and 10 times smaller than the largest neutron-evaporation channel cross section at the same excitation energy. These results suggest that the proton evaporation channel, albeit weak, may represent a realistic alternative to synthesize new, more neutron rich super heavy nuclei.
