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In this work, the ground-state properties of the platinum isotopic chain,160-238Pt, are studied within the covariant density functional theory. Thecalculations are carried out for a large number of even-even Pt isotopes byusing the density-dependent point-coupling and the density dependentmeson-exchange effective interactions. All ground-state properties such as thebinding energy, separation energy, two-neutron shell gap, rms-radii forneutrons and protons and quadrupole deformation are discussed and compared withavailable experimental data, and with the predictions of some nuclear modelssuch as the Relativistic Mean Field (RMF) model with NL3 functional and theHartree Fock Bogoliubov (HFB) method with SLy4 Skyrme force. The shape phasetransition for Pt isotopic chain is also studied. Its corresponding totalenergy curves as well as the potential energy surfaces confirm the transitionfrom prolate to oblate shapes at 188Pt contrary to some studies predictions andin agreement with others. Overall, a good agreement is found between thecalculated and experimental results wherever available.

Ground state properties and shape evolution in Pt isotopes within the covariant density functional theory