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相关论文: Description of $^7$Be and $^7$Li within the Gamow …

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Spectrum of $^7$Li and elastic scattering reaction $^4$He($^3$H, $^3$H)$^4$He are studied using the unified description of the Gamow shell model in the coupled-channel formulation (GSMCC). The reaction channels are constructed using the…

核理论 · 物理学 2026-03-16 J. P. Linares Fernández , M. Płoszajczak , N. Michel

According to standard stellar evolution, lithium abundance is believed to be a useful indicator of the stellar age. However, many evolved stars like red giants show huge fluctuations around expected theoretical abundances that are not yet…

核理论 · 物理学 2017-07-31 G. X. Dong , N. Michel , K. Fossez , M. Płoszajczak , Y. Jaganathen , R. M. Id Betan

The $^8$Li$(n,\gamma)$$^9$Li reaction plays a critical role in several reaction chains leading to the nucleosynthesis of $A>12$ nuclei. Due to unstable nature of $^8$Li and the unavailability of neutron targets, direct measurements of this…

核理论 · 物理学 2023-05-30 G. X. Dong , X. B. Wang , N. Michel , M. Płoszajczak

Structure of weakly bound/unbound light nuclei is often related to the low-energy decay channels involving composite particles like deuteron or ${\alpha}$-particle. These channels are essential to understand the appearance of light nuclei…

核理论 · 物理学 2019-05-24 A. Mercenne , N. Michel , M. Ploszajczak

The production of $^7$Be and $^7$Li nuclei plays an important role in primordial nucleosynthesis, nuclear astrophysics, and fusion energy generation. The $^3\mathrm{He}(\alpha , \gamma) ^7\mathrm{Be}$ and $^3\mathrm{H}(\alpha , \gamma)…

核理论 · 物理学 2019-08-14 Matteo Vorabbi , Petr Navrátil , Sofia Quaglioni , Guillaume Hupin

The Gamow shell model (GSM) framework has been extended to the study of weakly bound hypernuclei. As a first application, the neutron-rich He hyper-isotope chains, from 6{\Lambda}He to 9{\Lambda}He have been investigated to accurately…

核理论 · 物理学 2025-05-13 Xin Li , N. Michel , J. G. Li , Xian-Rong Zhou

We have applied the Gamow shell model (GSM) in the coupled-channel representation to study the astrophysical $S$-factor for the proton radiative capture reaction of $^6$Li. Reaction channels are built by coupling the proton wave function…

核理论 · 物理学 2016-02-25 G. X. Dong , K. Fossez , N. Michel , M. Płoszajczak

We formulate the Gamow shell model (GSM) in coupled-channel (CC) representation for the description of proton/neutron radiative capture reactions and present the first application of this new formalism for the calculation of cross-sections…

核理论 · 物理学 2016-06-17 K. Fossez , N. Michel , M. Płoszajczak , Y. Jaganathen , R. M. Id Betan

We formulate the GSM in coupled-channel (GSM-CC) representation to describe low-energy elastic and inelastic scattering of protons on $^{18}$Ne. The GSM-CC formalism is applied to a translationally-invariant Hamiltonian with an effective…

核理论 · 物理学 2015-11-17 Y. Jaganathen , N. Michel , M. Płoszajczak

Single-nucleon transfer reactions offer a valuable way to probe nuclear structure. We explore the effect of directly introducing overlap functions computed using the Gamow shell model (GSM) into reaction calculations, taking the $\left<…

核理论 · 物理学 2025-10-15 M. R. Xie , J. G. Li , N. Keeley , N. Michel , W. Zuo

We apply the realistic shell model which includes the coupling between many-particle (quasi-)bound states and the continuum of one-particle scattering states to the spectroscopy of mirror nuclei: $^8$B and $^8$Li, as well as to the…

核理论 · 物理学 2009-10-31 K. Bennaceur , F. Nowacki , J. Okolowicz , M. Ploszajczak

Background: Weakly bound and unbound nuclei close to particle drip lines are laboratories of new nuclear structure physics at the extremes of neutron/proton excess. The comprehensive description of these systems requires an open quantum…

核理论 · 物理学 2020-08-12 X. Mao , J. Rotureau , W. Nazarewicz , N. Michel , R. M. Id Betan , Y. Jaganathen

The nuclear structures of $^7$Li($\alpha+n+n+p$) and $^7$Be($\alpha+p+p+n$) are studied within the microscopic cluster model, in which the clustering fragments e.g., triton, $^3$He, and even the single nucleons around the core are studied…

核理论 · 物理学 2025-01-10 De-Ye Tao , Bo Zhou , Si-Min Wang , Yu-Gang Ma

Gamow shell model (GSM) is usually performed within the Woods-Saxon (WS) basis in which the WS parameters need to be determined by fitting experimental single-particle energies including their resonance widths. In the multi-shell case, such…

核理论 · 物理学 2020-01-16 B. S. Hu , Q. Wu , J. G. Li , Y. Z. Ma , Z. H. Sun , N. Michel , F. R. Xu

Drip-line nuclei have very different properties from those of the valley of stability, as they are weakly bound and resonant. Therefore, the models devised for stable nuclei can no longer be applied therein. Hence, a new theoretical tool,…

计算物理 · 物理学 2020-02-19 Nicolas Michel , Hasan Metin Aktulga , Yannen Jaganathen

We provide an investigation of the spectroscopic factor of resonance states in $A =5-8$ nuclei, utilizing the Gamow shell model (GSM). Within the GSM, the configuration mixing is taken into account exactly with the shell model framework,…

核理论 · 物理学 2024-06-11 M. R. Xie , J. G. Li , N. Michel , H. H. Li , W. Zuo

The Gamow shell model provides the open quantum system formulation of nuclear shell model. In the coupled-channel representation, Gamow shell model provides the unified theory of nuclear structure and reactions which is well suited for the…

核理论 · 物理学 2026-03-16 J. P. Linares Fernandez , N. Michel , M. Płoszajczak

The structure of weakly bound and unbound nuclei close to particle drip lines is one of the major science drivers of nuclear physics. A comprehensive understanding of these systems goes beyond the traditional configuration interactions…

核理论 · 物理学 2017-11-29 Y. Jaganathen , R. M. Id Betan , N. Michel , W. Nazarewicz , M. Ploszajczak

The cross sections of nuclear reactions between the radioisotope $^7$Be and deuterium, a possible mechanism of reducing the production of mass-7 nuclides in Big-Bang nucleosynthesis, were measured at center-of-mass energies between 0.2 MeV…

Electron capture and beta-decay rates on nuclei in the mass range A=45-65 play an important role in many astrophysical environments. The determination of these rates by large-scale shell model calculations is desirable, but it requires to…

核理论 · 物理学 2009-10-31 E. Caurier , K. Langanke , G. Martinez-Pinedo , F. Nowacki
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