Theoretical description of the decay chain of the nucleus super(287)115

The alpha -decay chain of the nucleus super(287)115 is described theoretically. Two quantities are studied: the alpha -transition energy (ProQuest: Formulae and/or non-USASCII text omitted) and the alpha -decay half-life T sub( alpha ). The analysis uses a simple phenomenological model based on a natural assumption that the decay goes between states of the same structure (the same quantum numbers). The calculations are performed in two variants, making use of two realistic sets of calculated nuclear masses. The results are compared with recent experimental ones obtained in Dubna and at GSI-Darmstadt. The experimental transition energy (ProQuest: Formulae and/or non-USASCII text omitted) obtained at GSI is reproduced with the average discrepancies 248 keV and 330 keV in the two variants of the calculations. The average ratio of the theoretical values of T sub( alpha ) to the ones measured at GSI takes the values 2.6 and 5.7, respectively, for these two variants.