6533b852fe1ef96bd12aadd0

RESEARCH PRODUCT

Investigation of the reaction 64Ni+238U being an option of synthesizing element 120

P. MasonE. M. KozulinM. CinauseroWladyslaw Henryk TrzaskaF. ScarlassaraJuha ÄYstöA. Di NittoE. FiorettoA. M. StefaniniV. I. ZagrebaevS. BeghiniFrancis HanappeE. VardaciS.v. SmirnovM. G. ItkisV. A. RubchenyaJ. KlimanN. GelliA. A. BogachevA. BrondiT. LoktevL. CorradiI. M. ItkisG. N. KnyazhevaSuzana SzilnerR. SilvestriG. MontagnoliG.f. PreteL. KrupaR. MoroS. V. Khlebnikov

subject

Physicssuperheavy elements ; fusion ; fission ; entrance channelsNuclear and High Energy PhysicsQuasi-fissionFissionSuperheavy elementsFusion–fissionCoulomb barrierKinetic energyPhysique atomique et nucléairemedicine.anatomical_structureSuperheavy elementOrders of magnitude (time)medicineAtomic physicsNucleusFusion-fissionExcitation

description

This study is concerned with the search for entrance channels suitable to synthesize elements with Z > 118. Mass-energy distributions as well as capture cross-sections of fission-like fragments have been measured for the reactions 64Ni + 238U → 302120 and 48Ca + 238U → 286112 at energies near the Coulomb barrier. Compound nucleus fission cross-sections were estimated from the analysis of mass and total kinetic energy distributions. The cross-section drops three orders of magnitude for the formation of the compound nucleus with Z = 120 obtained in the reaction 64Ni + 238U compared to the formation of the compound nucleus with Z = 112 obtained in the reaction 48Ca + 238U at an excitation energy of the compound nucleus of about 45 MeV. From our analysis it turns out that the reaction 64Ni + 238U is not suitable for the synthesis of element Z = 120. © 2010.

yearjournalcountryeditionlanguage
2010-03-01Physics Letters B
10.1016/j.physletb.2010.02.041http://dx.doi.org/10.1016/j.physletb.2010.02.041