Production of 287,288 Mc isotopes in the 48 Ca + 243 Am reaction at China Accelerator Facility for Superheavy Elements

Le résumé fourni par la source

Abstract We report the results of the experiment on synthesizing 287,288 Mc isotopes ( Z = 115) using the fusion-evaporation reaction 243 Am( 48 Ca, 4n, 3n) 287,288 Mc at the Spectrometer for Heavy Atoms and Nuclear Structure-2 (SHANS2), a gas-filled recoil separator located at the China Accelerator Facility for Superheavy Elements (CAFE2). In total, 20 decay chains are attributed to 288 Mc and 1 decay chain is assigned to 287 Mc. The measured α -decay properties of 287,288 Mc as well as its descendants are consistent with the known data. No additional decay chains originating from the 2n or 5n reaction channels were detected. The excitation function of the 243 Am( 48 Ca, 3n) 288 Mc reaction was measured at the cross-section level of picobarn, which indicates the promising capability for the study of heavy and superheavy nuclei at the facility.

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