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No abstract

The shapes of the [Formula: see text], [Formula: see text] triplet nuclei [Formula: see text]Se, [Formula: see text]Br and [Formula: see text]Kr have been investigated by Total Routhian Surface (TRS) calculations in the microscopic–macroscopic formalism. A Woods–Saxon potential with global set of parameters was used for obtaining the shell correction energy and the Strutinsky method has been applied to calculate the TRS. The [Formula: see text] and [Formula: see text] shape parameters, determined from the minimum of the TRS, show a structural change between mirror pairs [Formula: see text]Se and [Formula: see text]Kr. This is in support of the recent measurements performed at RIKEN.