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Within the framework of the dinuclear system model, the influence of mass asymmetry and the isospin effect on the production of exotic actinides have been investigated systematically. The isotopic yields populate in multinucleon transfer reactions of Ca(48), Kr(86), Xe(136), and U(238) bombarding on Cm(248) are analyzed and compared to the available experimental data. Systematics on the production of unknown actinides from Ac to Lr via the available stable elements on the earth (from Ar to U) as projectiles-induced reactions with $^{232}$Th, $^{238}$U and $^{248}$Cm are investigated thoroughly. Potential energy surface and total kinetic energy distribution for the reaction system are calculated and can be used to predict the production cross-section trends. It is found that the heavier projectile leads to the wider isotopic chain distribution for the same target. The heavier target-based reactions prefer to produce plenty of exotic actinides through both mechanisms of deep-inelastic and quasi-fission reactions. Isospin relaxation plays a crucial role in the colliding process, resulting in actinide isotopic distribution tends to shift to the drip lines. Massive new actinides have been predicted at the level of nanobarn to millibarn. The optimal projectile-target combinations and beam energies were proposed for the forthcoming experiments., 12 pages, 9 figures

Within the framework of the dinuclear system model, the reaction mechanism for producing the proton-rich actinide isotopes $Z=93--100$ near the proton drip line is thoroughly investigated in the fusion reactions with $^{24}\mathrm{Mg}, ^{28}\mathrm{Si}, ^{32}\mathrm{S}, ^{36,40}\mathrm{Ar}$, and $^{40}\mathrm{Ca}$ bombarding the target nuclei $^{181}\mathrm{Ta}, ^{180}\mathrm{W}, ^{185}\mathrm{Re}, ^{184}\mathrm{Os}, ^{191}\mathrm{Ir}, ^{190}\mathrm{Pt}, ^{197}\mathrm{Au}, ^{196}\mathrm{Hg}, ^{203}\mathrm{Tl}, ^{204}\mathrm{Pb}$, and $^{209}\mathrm{Bi}$, and in the multinucleon transfer reactions with proton-rich radioactive beams $^{59}\mathrm{Cu}, ^{69}\mathrm{As}, ^{90}\mathrm{Nb}, ^{91}\mathrm{Tc}, ^{94}\mathrm{Rh}, ^{105,110}\mathrm{Sn}$, and $^{118}\mathrm{Xe}$ on $^{238}\mathrm{U}$ near Coulomb barrier energies. The production cross sections of new proton-rich isotopes in the fusion-evaporation reactions and fragment yields in the multinucleon transfer reactions are estimated systematically and compared in both reaction mechanisms, in which a statistical approach is used to describe the decay process of excited nuclei. A dynamical deformation is implemented in the model in the dissipation process. It is found that charged particle evaporation channels (alpha and proton) dominate in the decay process of proton-rich nuclides. The fusion-evaporation reactions are favorable to produce the new neutron-deficient actinide isotopes. The total kinetic energies and angular spectra of primary fragments in multinucleon transfer reactions are strongly dependent on colliding orientations and incident energies.

The dynamical mechanism of multinucleon transfer (MNT) reactions has been investigated within the dinuclear system (DNS) model, in which the sequential nucleon transfer is described by solving a set of microscopically derived master equations. Production cross sections, total kinetic energy spectra, angular distribution of formed fragments in the reactions of $^{124,132}$Sn+ $^{238}$U/$^{248}$Cm near Coulomb barrier energies are thoroughly analyzed. It is found that the total kinetic energies of primary fragments are dissipated from the relative motion energy and rotational energy of the two colliding nuclei. The fragments are formed in the forward angle domain. The energy dependence of the angular spectra is different between projectile-like and target-like fragments. Isospin equilibrium is governed under the potential energy surface. The production cross sections of neutron-rich isotopes are enhanced around the shell closure., Comment: 10 pages, 8 figures, 1 table