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相关论文: Three-Body Barrier Dynamics of Double-Alpha Decay …

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$\alpha$ decay is a common and important process for natural radioactivity of heavy and superheavy nuclei. The $\alpha$ decay half-lives for even-even nuclei from Z=62 to Z=118 are systematically researched based on the two-potential…

核理论 · 物理学 2019-04-22 Xiao-Dong Sun , Ping Guo , Xiao-Hua Li

The alpha-decay half-lives and the alpha-capture cross-sections are evaluated in the framework of unified model for alpha-decay and alpha-capture. In the framework of this model the alpha-decay and alpha-capture are considered as…

核理论 · 物理学 2010-12-02 V. Yu. Denisov , A. A. Khudenko

Nuclear decays with simultaneous emission of two alpha particles are energetically possible for a number of nuclides. Prospects of searching for such kind of decay for nuclides present in the natural isotopic composition of elements are…

核实验 · 物理学 2024-05-30 V. I. Tretyak

Three-body continuum problems are investigated for light nuclei of astrophysical relevance. We focus on three-body decays of resonances or recombination via resonances or the continuum background. The concepts of widths, decay mechanisms…

核理论 · 物理学 2011-05-27 A. S. Jensen , D. V. Fedorov , R. de Diego , E. Garrido , R. Alvarez-Rodriguez

Recently synthesis of superheavy nuclei has been achieved in hot fusion reactions. A systematic theoretical calculation of alpha decay half-lives in this region of the periodic system, may be useful in the identification of new nuclei in…

核理论 · 物理学 2011-02-15 Frank Bello , Javier Aguilera , Oscar Rodríguez

Three-body decay is a rare decay mode observed in a handful of unbound rare isotopes. The angular and energy correlations between emitted nucleons are of particular interest, as they provide invaluable information on the interplay between…

核理论 · 物理学 2021-04-08 S. M. Wang , W. Nazarewicz

The advent of radioactive ion beam facilities and new detector technologies have opened up new possibilities to investigate the radioactive decays of highly unstable nuclei, in particular the proton emission, $\alpha$ decay and heavy…

核理论 · 物理学 2016-05-31 Chong Qi

We select 300 different parent nuclei in the range Z from 64 to 106. The proximity potentials Zhang 2013 and Guo 2013 are employed to calculate the nuclear potential. The influence of the nuclear surface diffuseness is applied in the…

核理论 · 物理学 2025-11-25 S. Mohammadi , R. Gharaei , S. A. Alavi

Radioactive decay of nuclei via emission of $\alpha$ particles has been studied theoretically in the framework of a superasymmetric fission model using the double folding (DF) procedure for obtaining the $\alpha$-nucleus interaction…

核理论 · 物理学 2008-11-26 D. N. Basu

Alpha emission from a nucleus is a fundamental decay process in which the alpha particle formed inside the nucleus tunnels out through the potential barrier. We describe alpha decay of $^{212}$Po and $^{104}$Te by means of the configuration…

核理论 · 物理学 2012-10-01 R. Id Betan , W. Nazarewicz

Nuclear decays into three-particle channels are considered in a few-body approach of hyperspherical harmonics with emphasis on simultaneous, or direct, emission of two protons. General conditions of direct decays are described and their…

核实验 · 物理学 2009-10-31 Ivan Mukha

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

The advent and intensive use of new detector technologies as well as radioactive ion beam facilities have opened up possibilities to investigate alpha, proton and cluster decays of highly unstable nuclei. This article provides a review of…

核理论 · 物理学 2019-03-27 Chong Qi , Roberto Liotta , Ramon Wyss

A spatial-time method of description of alpha-decay of a nucleus is presented. The method is based on the quantum mechanical model of the alpha-decay of a compound nuclear system with the barrier. alpha-decay dynamics is described on the…

核理论 · 物理学 2007-05-23 Sergei P. Maydanyuk , Vladislav S. Olkhovsky , Sergei V. Belchikov

$\alpha$ decay is usually associated with both ground and low-lying isomeric states of heavy and superheavy nuclei, and the unpaired nucleon plays a key role on $\alpha$ decay. In this work, we systematically studied the $\alpha$ decay…

核理论 · 物理学 2019-04-18 Xiao-Dong Sun , Chao Duan , Jun-Gang Deng , Ping Guo , Xiao-Hua Li

Nuclear double $\beta ^-$-decays with two neutrinos were observed for many years and a systematic law describing the relation between their half-lives and decay energies was also proposed recently [Phys. Rev. C89, 064603 (2014)]. However,…

核理论 · 物理学 2015-01-08 Yuejiao Ren , Zhongzhou Ren

Different models for the nonlocal description of the nuclear interaction are compared through a study of their effects on the half-lives of radioactive nuclei decaying by the emission of alpha particles. The half-lives are evaluated by…

核理论 · 物理学 2019-02-14 J. E. Perez Velasquez , N. G. Kelkar , N. J. Upadhyay

Nucleon decays into a lepton and two pseudoscalar mesons represent key channels for probing baryon number violation, complementing conventional two-body modes. In this Letter, we model-independently correlate two- and three-body processes…

高能物理 - 唯象学 · 物理学 2026-04-28 Wei-Qi Fan , Yi Liao , Xiao-Dong Ma

This article provides a concise review of selected topics in the many-body physics of low density nuclear systems. The discussion includes the condensation of alpha particles in supernova envelopes, formation of three-body bound states and…

核理论 · 物理学 2017-08-23 Armen Sedrakian , John W. Clark

The decay process of the schematic one-dimensional three-body system is considered. A time-dependent approach is used in combination with a one-dimensional three-body model, which is composed of a heavier core nucleus and two nucleons, with…

核理论 · 物理学 2018-04-12 Tomohiro Oishi , Lorenzo Fortunato
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