[en] The significant progresses made in the experimental and theoretical investigations in the region of superheavy nuclei have always aimed at expanding the periodic table and thereby prove the theoretical prediction on the existence of a magic island or the Island of Stability. The heaviest element known so far is Z = 118 and an attempt has been made to produce Z = 120. As our recent theoretical studies on the isotopes of Z = 115, Z = 117, Z = 118 and Z = 119, could successfully prove the applicability of CPPMDN in predicting the decay half lives and mode of decay of superheavy nuclei, we have extended our study on the isotopes of Z = 120

[en] An experiment aimed at the synthesis of isotopes of element 120 has been performed using the ²⁴⁴Pu(⁵⁸Fe,xn)^302-x 120 reaction. No decay chains consistent with fusion-evaporation reaction products were observed during an irradiation with a beam dose of 7.1 x 10¹⁸ 330-MeV ⁵⁸Fe projectiles. The sensitivity of the experiment corresponds to a cross section of 0.4 pb for the detection of one decay.

[en] Nuclear fission is a process in which a radioactive nucleus breaks in to two or more smaller nuclei known as fission products. In ternary fission, the radioactive nuclei break in to three fragments and often the third particle emitted is very light compared to other two fragments. So, this type of ternary fission process is known as light charge particle accompanied ternary fission. In 1941 R.D. Present predicted the probability of tripartition on the basis of liquid drop model. In 1943, the first emission of light charge accompanied fission was reported by Alvarez and simultaneously by Tsien san-Tsiang et al. The ternary fission of ³⁰⁴120 with ³H and ⁴He as light charge particle, the maximum yield obtained in the fragment combination having ⁴He as light charge particle. From this work we can conclude that in the ternary fission of ³⁰⁴120 isotope with ³H and ⁴He as light charge particle, the presence of nearly doubly magic nucleus plays an important role

[en] Predictions based on the "Fusion by Diffusion" model in a version adapted for calculating xn channels, with the ground-state masses, shell effects and barrier heights as given by Muntian, Patyk and Sobiczewski are presented. Sensitivity of the model to uncertainties in determination of the theoretical fission barriers is discussed. Predictions concerning formation of the element Z = 120 include comparison of fusion of the most asymmetric systems, ⁵⁰Ti + ²⁴⁹Cf and ⁵⁴Cr + ²⁴⁸Cm, with less asymmetric combinations ⁵⁸Fe + ²⁴⁴Pu and ⁶⁴Ni + ²³⁸U. (author)

[en] We have identified the probable isotopes for superheavy element $Z=120$ by comparing the alpha decay half-lives with that of spontaneous fission. The nuclei ${}^{290\text{–}304}$120 were found to have long half-lives and hence could be sufficient to detect them if synthesized in a laboratory. We have also studied the most possible projectile–target combination to synthesis those nuclei. The selected projectile–target system that can yield maximum production cross section is Ti+Cf.

[en] Fusion reactions that produce the superheavy elements with Z > 110 are severely hampered by other faster and competing processes. The fission barriers evaporate at bombardment energy much above the fusion barrier as a result of spin effects, which causes the compound systems to split apart quickly. Nuclear fission was the subject of a standard model proposed by Bohr and Wheeler, and this process predominantly competes with neutron evaporation. The nuclear temperature of compound nuclei significantly decreases during each neutron evaporation, lengthening the lifespan of fission. The fission decay width of ³⁰²120 has been studied using present model. As excitation energy increases decay width of fission also increases. The different entrance channel parameters such as mass asymmetry, charge asymmetry, effective fissility and mean fissility were investigated for fission decay width. Variation of decay width with entrance channel parameters like z, η_A, χ_eff and χ_m were studied. The decay times of ³⁰²120 was evaluated using present model and they are found to be at an order of zeptosecond (zs). These results find an importance in the study of fission decay width

[en] A simplistic approach to evaluate alpha decay half lives of superheavy elements is presented in the recent work and later the same approach is used to study the cluster emission ⁸Be and ¹⁴C, wherein the theoretical values and experimental values were in good agreement. The present work deals with the alpha decay chain of Z = 120 superheavy element. The interest in this particular superheavy nucleus is due to the recent experimental efforts to synthesise the isotope ²⁹⁹120 in a fusion reaction at the velocity filter SHIP (GSI Darmstadt). The current study focuses on even isotopes

[en] Ternary fission is the breaking of a radioactive nucleus into three fragments. It was formerly proposed by R D Present in 1941 using the liquid drop model. In 1943, experimental observations of light charge particle accompanied ternary fission were reported by Alvarez and Tsien San-Tsiang et al. In light charge accompanied ternary fission, the third fragment emitted is much lighter compared to the other two, giving rise to two possible configurations known as the equatorial configuration and collinear configuration. In equatorial configuration light charge particle is emitted perpendicular to main fission fragments, whereas in collinear configuration, it is emitted in the direction of main fission fragments. Investigation has been conducted on the ternary fission of even-even ^302-308120 with ¹⁴C as the light charge particle in equatorial configuration, using the Unified ternary fission model. The most favorable fission channel is determined from their cold valley and relative yield plots

[en] In the present work, we have investigated structural properties of α-decay chain of ²⁹⁸120 with systematic constrained calculations for axial and triaxial symmetry by using Relativistic Hartree Bogoliubov (RHB) model with density dependent finite range N-N interaction (DD-ME). The pairing correlation is used here in the separable pairing model. The formalism adopted in present calculation is elaborately discussed

[en] The aim of this work is to obtain the alpha decay lifetimes of ₁₂₀^298,299X by using the SK model and to compare the results obtained with those of the expected decay schemes of Oganessian et al. In this connection, it is to be noted that the decay chains for all the nuclei Z = 113 - 118 have been closely reproduced by the work