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Theoretical studies on the synthesis of SHE 290-302Og (Z=118) using 48Ca, 45Sc, 50Ti, 51V, 54Cr, 55Mn, 58Fe, 59Co and 64Ni induced reactions

  • K. P. Santhosh
  • V. Safoora
Regular Article - Theoretical Physics

Abstract.

Using the phenomenological model for production cross section (PMPC), the production cross sections for the synthesis of isotopes of superheavy element Og (Z = 118) using the fusion reactions 48Ca+249-254Cf \(\rightarrow\) 297-302Og, 45Sc+247,249Bk \( \rightarrow\) 292,294Og, 50Ti + 242-248,250Cm \( \rightarrow\) 292-298,300Og, 51V+241,243Am \(\rightarrow\) 292,294Og, 54Cr + 238-242,244Pu \( \rightarrow\) 292-296,298Og, 55Mn + 235-237Np \( \rightarrow\) 290-292Og, 58Fe + 232-236, 238U \(\rightarrow\) 290-294,296Og, 59Co + 231Pa \(\rightarrow\) 290Og, and 64Ni + 228-230,232Cm \(\rightarrow\) 292-294,296Og in \(x\mathrm{n}\) \((x=3,4,5)\) evaporation channel have been systematically studied at energies near and above the Coulomb barrier. We have predicted most suitable projectile-target combinations for the synthesis of isotopes 290-302Og among these reactions. Our calculated evaporation residue (ER) cross section values for the reaction 48Ca + 249Cf \(\rightarrow\) 297Og is in excellent agreement with available experimental values. For the synthesis of Og, among all the reactions mentioned above, the 3n channel cross section (2458 fb) is larger for 48Ca + 251Cf \(\rightarrow\) 299Og; 4n channel cross section (212 fb) is larger for 48Ca + 252Cf \( \rightarrow\) 300Og and 5n channel cross section (34 fb) is larger for 48Ca + 253Cf \(\rightarrow\) 301Og. The second largest 3n channel cross section (1143 fb) is obtained for the reaction, 50Ti + 245Cm \(\rightarrow\) 295Og. Our studies will be useful for the future experiments to synthesize the isotopes of element Og which are not synthesized so far. We have also studied the effect of the use of mass values and shell correction of the Warsaw group which leads to a smaller ER cross section compared to the Moller group.

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Copyright information

© SIF, Springer-Verlag GmbH Germany, part of Springer Nature 2018

Authors and Affiliations

  1. 1.School of Pure and Applied PhysicsKannur UniversityPayyanurIndia

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