New results on elements 111 and 112

Development of an Odd-Z-Projectile Reaction for Heavy Element Synthesis:Pb208(Folden1, Gregorich2, Düllmann3 et al. 2004Phys. Rev. Lett.700160View full textAdd to dashboardCite

“…This energy agrees well with the 11027-keV 272 111 α energy group reported in Ref. [5] and the main α group at ≈11000 keV in Fig. 4(b) of Ref.…”

“…proton in the target results in a decrease of the maximum 1n cross section from pb [1] to pb [5]. 9 6 15 + − 9 .…”

Eleven new heaviest isotopes of elementsZ=105toZ=117identified among the products ofOganessian1, Abdullin2, Bailey3 et al. 2011Phys. Rev. C1255350View full textAdd to dashboardCite

“…Despite the strong hindrance, spontaneous fission is a principal decay mode of the odd-even nucleus 281 Rg. Note that all of the lighter isotopes of element Z = 111, the 280 Rg, 279 Rg [20,21] and 278 Rg [22] produced in reactions with 48 Ca, as well as 274 Rg [49,50] and 272 Rg [51][52][53][54] produced in cold fusion experiments are α-emitters. The heavier isotope 282 Rg registered in the decay chain at E * ≈ 35 MeV undergoes α-decay as well.…”

Multinucleon exchange in quasifission reactions

“…Much experimental effort has been spent to synthesize super-heavy elements by fusion mechanism of heavy systems [1][2][3][4][5]. It is crucial to choose the right projectiletarget combinations in order to have the largest probability for forming a compound nucleus that leads to production of the desired super-heavy element.…”