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  • Letter

Theoretical attempt to predict the cross sections in the case of new superheavy elements

Sahila Chopra1, Neetu Goel1, Manoj K. Sharma2, Peter Otto Hess3, and Hemdeep4

  • 1Computational and Theoretical Chemistry Group, Department of Chemistry, Panjab University, Chandigarh 160014, India
  • 2School of Physics and Material Science, Thapar University, Patiala 147004, India
  • 3Instituto de Ciencias Nucleares, UNAM, 04510 Mexico-City, Mexico
  • 4Malwa College, Bondli-Samrala, Punjab 141114, India

Phys. Rev. C 106, L031601 – Published 20 September, 2022

DOI: https://doi.org/10.1103/PhysRevC.106.L031601

Abstract

For the first time, within the framework of the dynamical cluster-decay model (DCM) by Gupta and collaborators, we provide reasonable estimations for cross sections of nuclear systems which will give rise to new superheavy elements. The important point and the new approach presented in this contribution are the theoretical calculations done without tracking any reference to experimental data; i.e., these are independent calculations. We will provide a method for reasonable estimates for the cross sections of unobserved possible decay channels in a nuclear reaction. We will demonstrate the capability of the DCM to give a probable/sensible range of the cross section. This exercise of theoretical calculations within the DCM may benefit experiments for the discovery of new superheavy elements. Our results can provide hints to the experimentalist to choose proper incoming channels in order to perform experiments. We have applied this new strategy to calculate the cross sections of the already studied compound nuclei Z=116 and 118 via hot fusion reactions, and observed that our calculated range of cross sections has given values within the reach of experimental studies. Both compound nuclei were studied earlier by one of the authors for the angle Φ=0∘, including quadrupole deformations, β2i alone with “optimum” orientations (θopt.). Here, we consider the same specifications in order to study the new approach using the DCM. The principal aim of this work is to study the capability of the DCM to determine the cross sections for new elements, where experimental data are not available.

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