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The effective prompt response function full width at half maximum, PRF FWHM of 637 ps (obtained from the prompt gamma pairs of 477 keV and 700 keV associated with the yrast 2+ state in 206Po), and 1007 ps (obtained from the Compton gamma pairs of 189 keV and 237 keV associated with the 192Os(18O,16O)194Os 2 neutron transfer reaction) were used in fitting the time difference spectra obtained from the gamma coincident pairsof 206 keV and 374 keV in a symmetrised LaBr3(Ce) associated with the gamma transitions in 192Os, using the Half-life program. The values of half-life measured by fitting these PRF FWHM of 637 ps and 1007 ps separately show an excellent agreement of 282(16) ps and 272(21) ps, respectively, which correspond to the global half-life value of 282(4) ps for the 192Os. The mean value of 277(12) ps from these two measurements was used in calculating the B(E2; IL ->IL-2) of 4233(114) e2fm4, which is equivalent to be 81(19) W.u.

This paper presents the optical model analysis of the elastic scattering of 16 O + 12 C at the incident energies of 608 and 1503 MeV using optical potentials derived from B3Y-Fetal effective interaction. Optical model (OM) analysis of the elastic data of this system at these incident energies has shown two of the four optical potentials, the DDB3Y1-Fetal (K=176 MeV) and BDB3Y1-Fetal (K=235 MeV), to give a better description of the elastic data than the BDB3Y2-and BDB3Y3-Fetal potentials, making them the best-fit folded potentials, in agreement with previous work done with the M3Y-Reid effective interaction in both identical and non-identical heavy ions. This is a conclusive and convincing confirmation of the concensus among Nuclear Physics scholars, based on OM analyses of heavy ions, that nuclear matter has an underlying soft equation of state. In addition, results of calculations herein have also shown the best-fit folded potentials, the DDB3Y1-and BDB3Y1-Fetal with-227.8 and-220.6 MeV at 608 MeV and-124.3 MeV and-120.5 MeV at 1503 MeV, respectively as the largest values at smaller inter-nuclear distances, to be in good agreement with their counterparts, the DDM3Y1-Reid and BDM3Y1-Reid, whose largest values at smaller inter-nuclear distances are-231.6 and-223.8 MeV at 608 MeV and-138.8 MeV and-134.2 MeV at 1503 MeV respectively, in terms of magnitude, shape and trend. This is a further validation of the viability of the B3Y-Fetal, corroborating the findings of previous studies carried out with it. In the final analysis, the findings of this study have not shown the occurrence of distinctive features of refractive scattering such as Airy minima in the calculated cross sections at both 608 MeV and 1503 MeV in agreement with previous work.

This paper is a study of the nuclear Equation of State (EOS) of cold nuclear matter with the B3Y-Fetal effective interaction in its CDM3Y density-dependent version within the framework of Hartree-Fock approximation. The well-known saturation properties of both symmetric and asymmetric nuclear matter are well-reproduced in this work. Using the CDM3Y-K approach, this study has evolved a new set of user interactions, some of which are CDB3Y1-, CDB3Y2-, CDB3Y3-, CDB3Y4-, CDB3Y5-, CDB3Y6-Fetal interactions with corresponding incompressibilities K0 = 188, 204, 217,228, 241 and 252 MeV respectively, in excellent agreement with those of the M3Y-Paris and M3Y-Reid effective interactions. For asymmetric nuclear matter, the new set of interactions has produced the symmetry energy Esym = 32.00 MeV with an associated slope parameter L = 55 MeV at a saturation density ρ = 0.17fm−3 and asymmetry parameter δ = 1.00 (pure neutron matter) in good agreement with the standard values obtained from coupled channel analysis of charge exchange reactions, statistical multifragmentation model and terrestrial Nuclear Physics experimental analyses. Furthermore, the new set of interactions has been found to have bright prospects in a nuclear reaction as the real folded potential computed with the CDB3Y6-Fetal interaction within the framework of double folding potential has been found to be good and similar to that of CDB3Y6-Paris whose optical potential has a repulsive direct component.