In this manuscript, we analyze the structural properties of Z=119
superheavy nuclei in the mass range of 284 ≤ A ≤ 375 within the
framework of deformed relativistic mean field theory (RMF) and calculate the
binding energy, radii, quadrupole deformation parameter, separation energies
and density profile. Further, a competition between possible decay modes such
as α−decay, β−decay and spontaneous fission (SF) of the isotopic
chain of Z=119 superheavy nuclei under study is systematically analyzed
within self-consistent relativistic mean field model. Moreover, our analysis
confirmed that α−decay is restricted within the mass range 284 ≤ A
≤ 296 and thus being the dominant decay channel in this mass range.
However, for the mass range 297 ≤ A ≤ 375 the nuclei are unable to
survive fission and hence SF is the principal mode of decay for these isotopes.
There is no possibility of β−decay for the considered isotopic chain. In
addition, we forecasted the mode of decay 284−296119 as one α chain
from 284119 and 296119, two consistent α chains from
285119 and 295119, three consistent α chains from 286119
and 294119, four consistent alpha chains from 287119, six consistent
alpha chains from 288−293119. Also from our analysis we inferred that for
the isotopes 264−266,269Bh both α decay and SF are equally
competent and can decay via either of these two modes. Thus, such studies can
be of great significance to the experimentalists in very near future for
synthesizing Z=119 superheavy nuclei.Comment: 14 pages, 6 figures. arXiv admin note: text overlap with
arXiv:1611.00232, arXiv:1704.0315