Article
Astronomy & Astrophysics
K. Zhao, Z. Liu, F. S. Zhang, N. Wang
Summary: The study found that the production cross sections for n-rich N=126 residual fragments are several times larger in the U-238 + Pt-198 reaction system than in the Xe-136 + Pt-198 system due to larger cross sections and lower excitation energies of primary fragments. In both systems, N=126 semi-magic residues are produced via neutron emission in the decay of primary fragments, surviving in semi-central collisions with lower excitation energies.
Article
Nuclear Science & Technology
Peng-Hui Chen, Chang Geng, Zu-Xing Yang, Xiang-Hua Zeng, Zhao-Qing Feng
Summary: In this study, we systematically calculated the results of various nuclear reactions at different energies and studied the effects of shell and Coulomb effects. The results shed light on the fragment formation mechanisms in multinucleon transfer reactions, as well as the influence of isospin and shell effects. The findings are important for interpreting the production cross sections of actinide isotopes in nuclear reactions and provide insights into expanding our understanding of superheavy nuclei.
NUCLEAR SCIENCE AND TECHNIQUES
(2023)
Article
Physics, Nuclear
Xin-Rui Zhang, Gen Zhang, Jing-Jing Li, Shi-Hui Cheng, Zhong Liu, Feng-Shou Zhang
Summary: This study investigates the role of driving potentials in different orientation configurations in the Kr-86 + Er-166 and Hg-204 + Th-232 reactions. It is found that the Coulomb potential predominantly affects the driving potential in the mass number range of 52-200, while the nuclear potential becomes significant for mass numbers outside this range. In the Hg-204 + Th-232 reaction, the tip-to-tip configuration leads to the production of unknown neutron-rich isotopes due to the inverse quasifission process. The optimal incident energy is determined to be 678.1 MeV.
Article
Physics, Nuclear
Xin-rui Zhang, Gen Zhang, Jing-jing Li, Zhong Liu, Yong-xu Yang, Feng-shou Zhang
Summary: The production cross sections for producing the new neutron-rich Lr isotopes in multinucleon transfer reactions with Bk-249 and Es-254 targets were predicted within the framework of the dinuclear system model. The results showed that the Sn-124 + Es-254 reaction had the highest production cross sections, followed by the Te-130 + Bk-249 reaction. Te-130 + Bk-249 was considered the most suitable choice based on existing experimental techniques.
JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS
(2022)
Article
Meteorology & Atmospheric Sciences
G. S. Diniz, I. S. Ferreira, Y. Wada, T. Enoto
Summary: Relativistic runaway electron avalanches involve a large multiplication of high-energy electrons, requiring a high electric field and energetic particles as seeds. This phenomenon is connected to terrestrial gamma-ray flashes and gamma-ray glows, possibly sharing a common source mechanism, but with distinct characteristics and timescales. The study shows that chain reactions from TGF byproducts can sustain gamma-ray glows and provide seeds for RREAs.
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
(2021)
Article
Physics, Nuclear
Jingjing Li, Gen Zhang, Xinrui Zhang, Yuhai Zhang, Zhong Liu, Feng-Shou Zhang
Summary: This study investigates the production cross sections of unknown neutron-rich transuranium isotopes of Np, Pu, Am, and Cm elements in multinucleon transfer reactions. The influence of incident energy on the production of neutron-rich transuranium nuclei is studied. It is found that the final isotopic production cross sections are larger at 1.06-1.10 V compared to other energies. The N/Z ratio equilibration mechanism in the nucleon transfer process is also studied.
JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS
(2022)
Article
Astronomy & Astrophysics
Zhenji Wu, Lu Guo, Zhong Liu, Guangxiong Peng
Summary: In this study, the production of new proton-rich nuclei near Sn-100 is investigated using TDHF and GEMINI++ models. Multinucleon transfer reactions are shown to have much higher production cross sections compared to fusion-evaporation and projectile fragmentation experiments. It is predicted that 19 new proton-rich isotopes can be produced through multinucleon transfer reactions of Ni-58 with Sn-112.
Article
Materials Science, Multidisciplinary
Mithilesh Nayak, Frederic Mila
Summary: Motivated by the lack of direct evidence, this study investigates the temperature dependence of the dynamical spin structure factor in Heisenberg ferromagnetic spin chains using the time-dependent thermal density matrix renormalization group algorithm. The results show that for spin 1/2, the bound state appears as a well-defined excitation within a specific temperature range, suggesting the possibility of detecting it with inelastic neutron scattering. However, for spin 1, the situation is more complex due to the competition between the bound state and the antibound state.
Article
Physics, Nuclear
Zhi Cheng, XiaoJun Bao
Summary: Multinucleon transfer reactions near the Coulomb barrier are investigated using the improved dinuclear system (DNS) model and the statistical model GEMINI++. The deexcitation process of primary fragments is described, and the production cross sections of various reactions are calculated and compared with experimental data. The results show promising prospects for synthesizing proton-rich nuclei through multinucleon transfer reactions in specific proton-deficient regions.
Article
Physics, Nuclear
Zhao-Qing Feng
Summary: The effects of cluster transfer and dynamical deformation on fragment formation were investigated in multinucleon-transfer reactions. Cluster transfer was found to increase the transferring nucleons and lead to a broad mass distribution. The production mechanism of neutron-rich isotopes and the cross sections for their production were thoroughly analyzed and estimated.
Article
Physics, Nuclear
Cheng Peng, Zhao-Qing Feng
Summary: The production mechanism of neutron-rich heavy nuclei around N = 162 within the framework of the dinuclear system model is systematically investigated. It is found that the shell effect plays an important role in the formation of neutron-rich nuclei around N = 162. The fragments in the multinucleon transfer reactions show a broad isotopic distribution and are dependent on the beam energy.
EUROPEAN PHYSICAL JOURNAL A
(2022)
Article
Physics, Nuclear
K. Zhao, Z. Liu, F. S. Zhang, N. Wang, Z. Duan
Summary: In this study, detailed simulations of the reaction 238U + 198Pt were performed using an improved quantum molecular dynamics model. It was found that both the sequential and massive transfer processes contribute to the production of neutron-rich N & AP; 126 nuclei, with distinct features in angular and kinetic energy distributions in the laboratory system. These processes can potentially be distinguished experimentally.
Article
Physics, Nuclear
Junhua Luo, Juncheng Liang, Li Jiang, Fei Tuo, Long He, Liang Zhou, Quan Yan
Summary: This study measured the neutron activation cross-section and ratios of the isomeric cross-section in Xe-136(n,2n)Xe-135m,Xe-g reactions. The measurements were conducted using high purity and high-pressure natural xenon gas as the target sample, and corrections and covariance analysis were performed. Theoretical calculations were also carried out and compared to previous experimental results.
EUROPEAN PHYSICAL JOURNAL A
(2022)
Article
Physics, Nuclear
Jing-Jing Li, Na Tang, Yu-Hai Zhang, Xin-Rui Zhang, Gen Zhang, Feng-Shou Zhang
Summary: This study investigates the production of neutron-rich transuranium nuclei with Z = 93-98 in multinucleon transfer reactions induced by radioactive beams using a theoretical model and decay code. The theoretical calculations are able to reproduce the experimental results well, showing the dominance of N/Z ratio equilibration and driving mechanisms in the nucleon transfer process.
Article
Physics, Nuclear
Na Tang, Xin-Rui Zhang, Jing-Jing Li, Pei-Wei Wen, Feng-Shou Zhang
Summary: Multinucleon transfer reactions offer a potential pathway for the synthesis of new neutron-rich isotopes. By using a hybrid model that combines the dinuclear system model and the GRAZING model, the transfer reaction in Kr-86 +(24)8Cm is investigated and found to reproduce experimental results well. Further investigations show that different reactions can selectively produce neutron-rich or neutron-deficient nuclei.
Article
Physics, Nuclear
V. V. Sargsyan, G. G. Adamian, N. V. Antonenko, H. Lenske
EUROPEAN PHYSICAL JOURNAL A
(2020)
Review
Physics, Nuclear
G. G. Adamian, N. V. Antonenko, A. Diaz-Torres, S. Heinz
EUROPEAN PHYSICAL JOURNAL A
(2020)
Article
Astronomy & Astrophysics
Juhee Hong, G. G. Adamian, N. Antonenko
Article
Physics, Nuclear
I. S. Rogov, G. G. Adamian, N. Antonenko, T. M. Shneidman, H. Lenske
Article
Astronomy & Astrophysics
J. Hong, G. G. Adamian, N. V. Antonenko, P. Jachimowicz, M. Kowal
Article
Physics, Multidisciplinary
Gurgen G. Adamian, Nikolai V. Antonenko, Horst Lenske, Vazgen V. Sargsyan
Summary: New analytical formulas for the moment of inertia, rotation frequency, and radius of astronomical non-exotic objects were derived using a model based on Regge-like laws. Estimates were made for the rotation frequency and moment of inertia of neutron stars and the observable Universe, along with the average numbers of stars and galaxies in the observable Universe. The Darwin instability effect in binary systems (di-planets, di-stars, and di-galaxies) was also analyzed.
Article
Physics, Nuclear
Sh A. Kalandarov, G. G. Adamian, N. Antonenko, H. M. Devaraja, S. Heinz
Article
Optics
Denis Lacroix, V. V. Sargsyan, G. G. Adamian, N. Antonenko, A. A. Hovhannisyan
Article
Physics, Fluids & Plasmas
A. A. Hovhannisyan, V. V. Sargsyan, G. G. Adamian, N. Antonenko, D. Lacroix
Article
Physics, Nuclear
H. Pasca, A. Andreev, G. G. Adamian, N. Antonenko
Article
Physics, Nuclear
A. Rahmatinejad, T. M. Shneidman, N. Antonenko, A. N. Bezbakh, G. G. Adamian, L. A. Malov
Article
Physics, Nuclear
I. S. Rogov, N. Antonenko, G. G. Adamian, T. M. Shneidman
PHYSICS OF ATOMIC NUCLEI
(2020)
Article
Physics, Nuclear
V. V. Sargsyan, H. Lenske, G. G. Adamian, N. Antonenko
PHYSICS OF ATOMIC NUCLEI
(2020)
Article
Physics, Nuclear
G. G. Adamian, N. Antonenko, H. Lenske, L. A. Malov