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Related papers: Intrinsic spin distributions in multinucleon trans…

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In quasi-fission, it is unclear what the interaction between the relative orbital angular momentum and the spin of the fragments is from a microscopic perspective. In macroscopic approaches, it is expected that the large value of the…

Nuclear Theory · Physics 2024-11-19 Guillaume Scamps

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…

Nuclear Theory · Physics 2020-03-05 Peng-Hui Chen , Fei Niu , Wei Zuo , Zhao-Qing Feng

Nuclear reactions present an interesting case for studies of the time-evolution of entanglement between complex quantum systems. In this work, the time-dependent nuclear density functional theory is employed to explore entanglement in…

Nuclear Theory · Physics 2024-09-16 B. Li , D. Vretenar , T. Nikšić , D. D. Zhang , P. W. Zhao , J. Meng

The generation of angular momentum (intrinsic spin) in fission fragments has recently attracted renewed attention. While several microscopic approaches reproduce the spin distribution qualitatively using projection techniques, the physical…

Nuclear Theory · Physics 2025-12-03 G. Scamps , A. Guilleux , D. Regnier , A. Bernard

Nuclear time-dependent density functional theory is used to investigate spin generation and entanglement of fission fragments in spontaneous fission of $^{252}$Cf, incorporating both axial and non-axial deformations. Axially symmetric…

Nuclear Theory · Physics 2026-05-26 B. Li , D. D. Zhang , D. Vretenar , T. Nikšić , P. W. Zhao , J. Meng

We present the first fully unrestricted microscopic calculations of the primary fission fragment intrinsic spins and of the fission fragments' relative orbital angular momentum for $^{236}$U$^*$, $^{240}$Pu$^*$, and $^{252}$Cf using the…

Nuclear Theory · Physics 2022-01-14 Aurel Bulgac , Ibrahim Abdurrahman , Kyle Godbey , Ionel Stetcu

The microscopic framework of time-dependent covariant density functional theory is applied to study multinucleon transfer reactions, with transfer probabilities calculated using the particle number projection method. It is found that…

Nuclear Theory · Physics 2024-02-23 D. D. Zhang , D. Vretenar , T. NikšIć , P. W. Zhao , J. Meng

The multinucleon transfer (MNT) process in low-energy heavy ion collisions can be utilized to produce unknown nuclei far beyond the stability line. However, the reaction products exhibit broad angular and energy distributions, which could…

Nuclear Theory · Physics 2024-07-09 Zehong Liao , Zepeng Gao , Yu Yang , Yueping Fang , Jun Su , Long Zhu

This study quantifies the impact of nuclear de-excitation on correlations in multi-nucleon transfer (MNT) reactions. To bridge the gap between initial collision dynamics and final experimental observables, we introduce a hybrid…

Nuclear Theory · Physics 2026-04-14 Y. C. Yang , D. D. Zhang , D. Vretenar , B. Li , T. Nikšić , P. W. Zhao , J. Meng

We theoretically investigate multinucleon transfer (MNT) processes in $^{238}$U+$^{124}$Sn reaction at $E_\mathrm{lab}=5.7$ MeV/$A$ using the time-dependent Hartree-Fock (TDHF) theory. For this reaction, measurements of MNT processes have…

Nuclear Theory · Physics 2016-11-10 Kazuyuki Sekizawa , Kazuhiro Yabana

The intrinsic spins and their correlations are the least understood characteristics of fission fragments from both theoretical and experimental points of view. In many nuclear reactions the emerging fragments are typically excited and…

Nuclear Theory · Physics 2021-04-20 A. Bulgac , I. Abdurrahman , S. Jin , K. Godbey , N. Schunck , I. Stetcu

The multinucleon transfer reactions near barrier energies has been investigated with a multistep model based on the dinuclear system (DNS) concept, in which the capture of two colliding nuclei, the transfer dynamics and the de-excitation…

Nuclear Theory · Physics 2018-01-03 Fei Niu , Peng-Hui Chen , Ya-Fei Guo , Chun-Wang Ma , Zhao-Qing Feng

Modern applications of Covariant Density Functional Theory (CDFT) are discussed. First we show a systematic investigation of fission barriers in actinide nuclei within constraint relativistic mean field theory allowing for triaxial…

Nuclear Theory · Physics 2011-09-20 P. Ring , H. Abusara , A. V. Afanasjev , G. A. Lalazissis , T. Niksic , D. Vretenar

This paper presents a theoretical description of the spin distributions of fragments from low-energy induced and spontaneous nuclear fission, expressed in an analytical form. The mechanism of pumping high spin values for deformed fission…

Time-dependent Hartree-Fock (TDHF) theory has achieved a remarkable success in describing and understanding nuclear many-body dynamics from nucleons' degrees of freedom. We here report our investigation of multinucleon transfer (MNT)…

Nuclear Theory · Physics 2015-11-30 Kazuyuki Sekizawa , Kazuhiro Yabana

There is no microscopic quantum approach based on the many-body time-dependent Schr\"{o}dinger equation which capable to describe the formation and the evolution of a compound nucleus. The most advanced microscopic approach developed so far…

Nuclear Theory · Physics 2026-05-04 Matthew Kafker , Aurel Bulgac

Transverse parton momentum dependent distribution functions (TMDs) of the nucleon are studied in a covariant model, which describes the intrinsic motion of partons in terms of a covariant momentum distribution. The consistency of the…

High Energy Physics - Phenomenology · Physics 2009-09-02 A. V. Efremov , P. Schweitzer , O. V. Teryaev , P. Zavada

This work builds a bridge between density functional theory (DFT) and model interpretations of Anderson's superexchange theory by constructing a $f$-$d$-$p$ model with DFT Wannier functions to enable a direct quantum many-body solution…

Materials Science · Physics 2020-11-03 Dian-Teng Chen , Jia Chen , Xiang-Guo Li , George Christou , Xiao-Guang Zhang , Hai-Ping Cheng

The reaction mechanism of deep-inelastic multinucleon transfer processes in the $^{16}$O+$^{27}$Al reaction at an incident $^{16}$O energy ($E_{\rm lab}=134$ MeV) substantially above the Coulomb barrier has been studied both experimentally…

Excitations of chiral rotation observed in triaxial nuclei and magnetic and/or antimagnetic rotations seen in near-spherical nuclei have attracted a lot of attention. Unlike conventional rotation in well-deformed or superdeformed nuclei,…

Nuclear Theory · Physics 2016-05-04 Jie Meng , Pengwei Zhao
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