论文标题
在不同的蒸发通道中直接生产具有Z = 112--118的超重核的可能性
Possibilities of direct production of superheavy nuclei with Z=112--118 in different evaporation channels
论文作者
论文摘要
预测$ xn $ - ，$ pxn $ - 和$αxn$ - $^{48} $ CA诱导的未来实验完全融合反应的$ xn $ - ，$ pxn $ - 和$αxn$的生产交叉截面具有112---118的最高核Nuclei的生产截面为112---118。合成能力的估计值基于一组均匀且一致的输入核数据。核质量，变形，壳校正，裂变屏障和衰减能在宏观微观方法中计算，以均匀，奇数-Z和ODD-N核。对于奇数系统，使用阻止过程。为了发现，使用浸入水流技术，通过最小化和鞍点态，使用了多维变形空间，其中包含非轴承的多维变形空间。如图所示，基于新的质量和障碍的当前计算与实验已知的横截面非常吻合，尤其是在$ 3N $ - 蒸发通道中。讨论了这些预测对质量/裂变屏障表和融合模型的依赖性。证明一种方法可以在$ 1N $（或$ 2N $）的蒸发渠道中产生直接未知的超级同位素。在有前途的频道中提出了与质子发射（$σ_{pxn} \ simeq 10-200 $ fb）和alpha（$σ__{αxn} \ simeq 5-500 $ fb）的有希望的渠道中，提出了在中性排放反应中无法实现的新超级同位素的合成。
The production cross sections of heaviest isotopes of superheavy nuclei with charge numbers 112--118 are predicted in the $xn$--, $pxn$--, and $αxn$--evaporation channels of the $^{48}$Ca-induced complete fusion reactions for future experiments. The estimates of synthesis capabilities are based on a uniform and consistent set of input nuclear data. Nuclear masses, deformations, shell corrections, fission barriers, and decay energies are calculated within the macroscopic-microscopic approach for even-even, odd-Z, and odd-N nuclei. For odd systems, the blocking procedure is used. To find, the ground states via minimization and saddle points using Immersion Water flow technique, multidimensional deformation spaces, containing non-axially are used. As shown, current calculations based on a new set of mass and barriers, agree very well with experimentally known cross-sections, especially in the $3n$--evaporation channel. The dependencies of these predictions on the mass/fission barriers tables and fusion models are discussed. A way is shown to produce directly unknown superheavy isotopes in the $1n$-- or $2n$--evaporation channels. The synthesis of new superheavy isotopes unattainable in reactions with emission of neutrons is proposed in the promising channels with emission of protons ($σ_{pxn} \simeq 10-200$ fb) and alphas ($σ_{αxn} \simeq 5-500$ fb).
