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相关论文: Microscopic Study of the triple-$\alpha$ Reaction

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Time-dependent Hartree-Fock theory is used to describe density oscillations of symmetry-unrestricted two-dimensional nanostructures. In the small amplitude limit the results reproduce those obtained within a perturbative approach such as…

介观与纳米尺度物理 · 物理学 2009-11-07 Antonio Puente , Llorenç Serra , Vidar Gudmundsson

A microscopic calculation of reaction cross sections for nucleon-nucleus scattering has been performed by explicitly coupling the elastic channel to all particle-hole excitations in the target and one-nucleon pickup channels. The…

We investigate the linear-chain configurations of four-$\alpha$ clusters in $^{16}$O using a Skyrme cranked Hartree-Fock method and discuss the relationship between the stability of such states and angular momentum. We show the existence of…

核理论 · 物理学 2015-05-28 T. Ichikawa , J. A. Maruhn , N. Itagaki , S. Ohkubo

With the relativistic representation of the nuclear tensor force that is included automatically by the Fock diagrams, we explored the self-consistent tensor effects on the properties of nuclear matter system. The analysis were performed…

核理论 · 物理学 2015-01-20 Li Juan Jiang , Shen Yang , Jian Min Dong , Wen Hui Long

We investigate the ternary fissions of $^{252}$Cf (spontaneous) and $^{236}$U (neutron-induced) into medium-mass fragments, as reported by the Dubna group, using the Hartree-Fock plus BCS method with the SLy6 Skyrme interaction. Compared to…

核理论 · 物理学 2025-07-01 Yannen Jaganathen , Janusz Skalski

Combining an electronic theory with molecular dynamics simulations we present results for the ultrafast structural changes in small clusters. We determine the time scale for the change from the linear to a triangular structure after the…

chem-ph · 物理学 2009-10-28 H. O. Jeschke , M. E. Garcia , K. H Bennemann

The lifetimes of the consecutive $\alpha$ decay chains of recently synthesized new element 115, $^{287}115$ and $^{288}115$, have been calculated theoretically within the WKB approximation using microscopic $\alpha$-nucleus interaction…

核理论 · 物理学 2009-11-10 D. N. Basu

We have perfomed Time Dependant Hartree-Fock (TDHF) calculations on the non linear response of nuclei. We have shown that quadrupole (and dipole) motion produces monopole (and quadrupole) oscillations in all atomic nuclei. We have shown…

核理论 · 物理学 2009-11-07 C. Simenel , Ph. Chomaz

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…

核理论 · 物理学 2026-05-04 Matthew Kafker , Aurel Bulgac

$\alpha$-clustering study since the pioneering discovery of $^{12}$C+$^{12}$C molecular resonances half a century ago. Our knowledge on physics of nuclear molecules has increased considerably and nuclear clustering remains one of the most…

核实验 · 物理学 2017-08-23 C. Beck

In this short review, I discuss the sensitivity of the generation of the light and the life-relevant elements like carbon and oxygen under changes of the parameters of the Standard Model pertinent to nuclear physics. Chiral effective field…

高能物理 - 理论 · 物理学 2015-05-05 Ulf-G. Meißner

The fusion reaction of a halo nucleus 11Be on 208Pb is described by a three-body direct reaction model. A time-dependent wave packet approach is applied to a three-body reaction problem. The wave packet approach enables us to obtain…

核理论 · 物理学 2009-11-10 Kazuhiro Yabana , Manabu Ueda , Takashi Nakatsukasa

Multiconfigurational Hartree-Fock theory is presented and implemented in an investigation of the fragmentation of a Bose-Einstein condensate made of identical bosonic atoms in a double well potential at zero temperature. The approach builds…

其他凝聚态物理 · 物理学 2007-10-16 D. Masiello , S. B. McKagan , W. P. Reinhardt

We carried out a simulation of heavy ion collision using a time-dependent density functional theory. We call it the canonical-basis time-dependent Hartree-Fock-Bogoliubov theory (Cb-TDHFB) which can describe nuclear dynamics in…

核理论 · 物理学 2015-06-12 Shuichiro Ebata

Deformations of hot composite $^{32}$S$^{*}$ formed in the reaction $^{20}$Ne ($\sim$ 7 -- 10 MeV/nucleon) + $^{12}$C have been estimated from the respective inclusive $\alpha$-particle evaporation spectra. The estimated deformations for…

Background: At energies near the Coulomb barrier, capture reactions in heavy-ion collisions result either in fusion or in quasifission. The former produces a compound nucleus in statistical equilibrium, while the second leads to a…

核理论 · 物理学 2016-05-12 A. S. Umar , V. E. Oberacker , C. Simenel

Recently, experimental researches on the $\alpha$ decay with long lifetime are one of hot topics in the contemporary nuclear physics [e.g. N. Kinoshita {\sl et al.} (2012) and J. W. Beeman {\sl et al.} (2012) ]. In this study, we have…

核理论 · 物理学 2014-10-13 Yibin Qian , Zhongzhou Ren

3$\alpha$-cluster structures and monopole transitions of $0^+$ states in $^{12}$C and $^{14}$C were investigated with $3\alpha$- and $^{10}$Be+$\alpha$-cluster models. A gas-like $3\alpha$ state and a bending-chain $3\alpha$ state were…

核理论 · 物理学 2016-09-07 Yuta Yoshida , Yoshiko Kanada-En'yo

$\alpha$-cluster correlations in the ground states of $^{12}$C and $^{16}$O are studied. Because of the $\alpha$ correlations, the intrinsic states of $^{12}$C and $^{16}$O have triangle and tetrahedral shapes, respectively. The…

核理论 · 物理学 2012-08-17 Yoshiko Kanada-En'yo , Yoshimasa Hidaka

We suggest that the emergence of a large deformation in the magnesium, Mg, nuclides, especially at the Z = 12, N = 12, should be associated with an octahedral deformed shape. Within the framework of molecular geometrical symmetry, we find a…

核理论 · 物理学 2016-05-24 Chang-Bum Moon