Электронный каталог

Статья

Oganessian, Yu.Ts.
New Isotope *2*7*6Ds and Its Decay Products *2*7*2Hs and *2*6*8Sg from the *2*3*2Th + *4*8Ca Reaction / Yu.Ts.Oganessian, V.K.Utyonkov, M.V.Shumeiko, F.Sh.Abdullin, S.N.Dmitriev, D.Ibadullayev, M.G.Itkis, N.D.Kovrizhnykh, D.A.Kuznetsov, O.V.Petrushkin, A.V.Podshibiakin, A.N.Polyakov, A.G.Popeko, I.S.Rogov, R.N.Sagaidak, L.Schlattauer, V.D.Shubin, D.I.Solovyev, Yu.S.Tsyganov, A.A.Voinov, V.G.Subbotin, N.S.Bublikova, M.G.Voronyuk, A.V.Sabelnikov, A.Yu.Bodrov, H.B.Yang, [a.o.] // Physical Review C [Electronic resource]. – 2023. – Vol.108, No.2. – P.024611. – URL: https://doi.org/10.1103/PhysRevC.108.024611. – Bibliogr.:37.

The 232Th + 48Ca reaction has been studied at the gas-filled separator DGFRS-2 online to the cyclotron DC280 at the SHE Factory at JINR. Three new nuclides were synthesized for the first time: a spontaneously fissioning (SF) 268Sg with the half-life T&sub(SF) = 13&sup(+17)&sub(−4) s; an α decaying 272Hs with Tα = 0.16&sup(+0.19)&sub(−0.06) s and E&sub(α) = 9.63 ± 0.02 MeV; and 276Ds with T&sub(1/2) = 0.15&sup(+0.10)&sub(−0.04) ms, E&sub(α) = 10.75 ± 0.03 MeV, and an SF branch of 57%. The decay properties of these nuclei are in agreement with the systematics of experimental partial half-lives and α-decay energies of heavy known nuclei, as well as spontaneous-fission half-lives. The cross sections of the 4n-evaporation channel of 0.07&sup(+0.17)&sub(0.06) pb, 0.7&sup(+1.1)&sub(−0.5) pb, and 0.11&sup(+0.46)&sub(−0.09) pb were measured at 231, 238, and 251 MeV, respectively.



ОИЯИ = ОИЯИ (JINR)2023
Спец.(статьи,препринты) = С 341.2г - Новые изотопы и элементы
Спец.(статьи,препринты) = С 341.1д - Альфа-распад, протонный распад и другие виды распада
Бюллетени = 51/023