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Radiation transport codes require accurate nuclear cross sections to compute particle fluences inside shielding materials. The Tripathi semi-empirical reaction cross section, which includes over 60 parameters tuned to nucleon-nucleus (NA)…

核理论 · 物理学 2018-03-14 C. M. Werneth , X. Xu , R. B. Norman , K. M. Maung

Accurate total reaction cross section models are important to achieving reliable predictions from spallation and transport codes. The latest version of the Cascade Exciton Model (CEM) as incorporated in the code CEM03.03, and the Monte…

核理论 · 物理学 2015-12-09 Leslie M. Kerby , Stepan G. Mashnik

Photo-induced reaction cross section data are of importance for a variety of current or emerging applications, such as radiation shielding design and radiation transport analyses, calculations of absorbed dose in the human body during…

In this review paper we present a detailed account of the extraction and the calculation of the total reaction cross section of strongly bound and weakly bound, stable and unstable, exotic, nuclei. We discuss the optical model and the more…

核理论 · 物理学 2020-11-24 L. F. Canto , V. Guimaraes , J. Lubian , M. S. Hussein

Recent results connected to nuclear collision dynamics, from low up to relativistic energies, are reviewed. Heavy ion reactions offer the unique opportunity to probe the complex nuclear many-body dynamics and to explore, in laboratory…

核理论 · 物理学 2020-07-15 Maria Colonna

A systematic analysis is made on the total reaction cross sections for Ne, Mg, Si, and S isotopes. The high-energy nucleus-nucleus collision is described based on the Glauber model. Using the Skyrme-Hartree-Fock method in the…

核理论 · 物理学 2015-06-05 W. Horiuchi , T. Inakura , T. Nakatsukasa , Y. Suzuki

Total inclusive cross sections for neutral and charged pion production in proton-nucleus and nucleus-nucleus reactions have been calculated and compared to experiment. Nucleon-nucleon theoretical cross sections have been scaled up to…

核理论 · 物理学 2008-11-26 John W. Norbury , Lawrence W. Townsend

Radiative thermal neutron capture cross sections for nuclei participating in s-process and p-process nucleosynthesis in and around $N=50$ closed neutron shell have been calculated in statistical semi-microscopic Hauser-Feshbach approach for…

核理论 · 物理学 2018-05-29 Saumi Dutta , G. Gangopadhyay , Abhijit Bhattacharyya

The study aims to explore the mechanism of heavy-ion fusion using various effective nucleon-nucleon (NN) interactions and nuclear density distributions. The nuclear potentials are obtained by folding the relativistic effective NN…

核理论 · 物理学 2025-05-14 Shilpa Rana , Raj Kumar , M. Bhuyan

An extended database of experimental data is needed to address uncertainties of the nuclear-physics input parameters for Hauser-Feshbach calculations. Especially $\alpha$+nucleus optical model potentials at low energies are not well known.…

核实验 · 物理学 2015-03-18 L. Netterdon , J. Mayer , P. Scholz , A. Zilges

For the first time, the precise data on the above barrier fusion (capture) cross-sections for the reactions involving spherical colliding nuclei are quantitatively analyzed using the relativistic mean-field effective interaction. The…

核理论 · 物理学 2019-07-29 Maria Chushnyakova , Igor Gontchar , Natalya Khmyrova

There is now a large and increasing body of experimental data and theoretical analyses for reactions that remove a single nucleon from an intermediate-energy beam of neutron- or proton-rich nuclei. In each such measurement, one obtains the…

核理论 · 物理学 2015-06-23 J. A. Tostevin , A. Gade

Although the study of collisions of heavy ions resulting in formation of dinuclear systems has a long history this process still is a subject of experimental and scientific activities, partly because nowadays the heavy-ion fusion process is…

核理论 · 物理学 2023-05-16 I. I. Gontchar , M. V. Chushnyakova

The transport approach is a useful tool to study dynamics of non-equilibrium systems. For heavy-ion collisions at intermediate energies, where both the smooth nucleon potential and the hard-core nucleon-nucleon collision are important, the…

核理论 · 物理学 2019-04-02 Jun Xu

Total reaction cross sections are predicted for nucleons scattering from various nuclei. Projectile energies to 300 MeV are considered. So also are mass variations of those cross sections at selected energies. All predictions have been…

核理论 · 物理学 2009-11-07 K. Amos , S. Karataglidis , P. K. Deb

The fusion/capture cross sections (CSs) of complex nuclei (heavy ions) are often described in the literature within two approaches: i) the coupled channels model accounting for structure of the colliding nuclei and ii) trajectory models…

核理论 · 物理学 2023-06-06 Maria V. Chushnyakova

In a previous publication [Atomic Data and Nuclear Data Tables 75, 1 (2000)], we had given seven parameter analytical fits to theoretical reaction rates derived from nuclear cross sections calculated in the statistical model…

核理论 · 物理学 2009-11-07 T. Rauscher , F. -K. Thielemann

The radiative thermal neutron capture cross sections over the range of thermal energies from 1 keV to 1 MeV are studied in statistical Hauser-Feshbach formalism. The optical model potential is constructed by folding the density dependent…

核理论 · 物理学 2016-11-15 Saumi Dutta , G. Gangopadhyay , Abhijit Bhattacharyya

Transport simulations are very valuable for extracting physics information from heavy-ion collision experiments. With the emergence of many different transport codes in recent years, it becomes important to estimate their robustness in…

Previously a compact formula for total reaction cross section for heavy-ion collisions as a function of energy was obtained by treating the angular momentum $l$ as a continuous variable. The accuracy of the continuum approximation is…

核理论 · 物理学 2012-12-11 Cheuk-Yin Wong
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