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Nuclear reaction rates of astrophysical applications are traditionally determined on the basis of Hauser-Feshbach reaction codes. These codes adopt a number of approximations that have never been tested, such as a simplified width…

Astrophysics · Physics 2015-05-13 S. Goriely , S. Hilaire , A. J. Koning

Recent multi-messenger detection of the binary neutron star merger (GW170817) energized the astrophysical community and encouraged further research for determination of nuclear physics observables. Comprehensive studies of atomic nuclei in…

Solar and Stellar Astrophysics · Physics 2021-05-03 Boris Pritychenko

Systematic study of theoretical estimation of nuclear cross section of charged particle induced reactions on rare earth nuclei has been carried out. The production cross section of the $^{150,149,148,146,144,143,141}$Pm and $^{149,147}$Nd…

Nuclear Theory · Physics 2024-09-20 A. Saha

We calculated the Maxwellian-averaged cross sections (MACS) and astrophysical reaction rates of the stellar nucleosynthesis reactions (n,$\gamma$), (n,fission), (n,p), (n,$\alpha$) and (n,2n) using the ENDF/B-VII.0-, JEFF-3.1-, JENDL-3.3-,…

Solar and Stellar Astrophysics · Physics 2014-11-18 B. Pritychenko , S. F. Mughaghab , A. A. Sonzogni

Accurate modeling of neutron-induced (n,p) reaction cross sections is essential for diverse applications in nuclear physics, including reactor design, nuclear astrophysics, and radionuclide production. However, experimental data are often…

Nuclear Theory · Physics 2026-03-06 Arunabha Saha , Songshaptak De

An update of a previous description of the BRUSLIB+NACRE package of nuclear data for astrophysics and of the web-based nuclear network generator NETGEN is presented. The new version of BRUSLIB contains the latest predictions of a wide…

Nuclear Theory · Physics 2012-12-06 Yi Xu , Stephane Goriely , Alain Jorissen , Guangling Chen , Marcel Arnould

We investigate both the systematic and statistical uncertainties associated with theoretical nuclear reaction rates of relevance during the i-process and explore their impact on the i-process elemental production, and subsequently on the…

Solar and Stellar Astrophysics · Physics 2023-10-16 S. Martinet , A. Choplin , S. Goriely , L. Siess

The $(n,\alpha)$ reaction contributes in many processes of energy generation and nucleosynthesis in stellar environment. Since experimental data are available for a limited number of nuclei and in restricted energy ranges, at present only…

Nuclear Theory · Physics 2021-12-20 Sema Küçüksucu , Mustafa Yiğit , Nils Paar

The importance of nuclear reactions in low-density astrophysical plasmas with ion temperatures $T \geq 10^{10}$ K has been recognized for more than thirty years. However, the lack of comprehensive data banks of relevant nuclear reactions…

Solar and Stellar Astrophysics · Physics 2012-02-15 Ervin Kafexhiu , Felix Aharonian , Gabriela Vila

STARLIB is a next-generation, all-purpose nuclear reaction-rate library. For the first time, this library provides the rate probability density at all temperature grid points for convenient implementation in models of stellar phenomena. The…

Solar and Stellar Astrophysics · Physics 2013-07-11 A. L. Sallaska , C. Iliadis , A. E. Champagne , S. Goriely , S. Starrfield , F. X. Timmes

The proton capture (p, $\gamma$) cross-sections for eight different atomic nuclei in the mass region A=75-110 were calculated within the nuclear reaction model code TALYS. For all the reactions, we tested different combinations of inputs…

Sensitivities of nuclear reaction rates to a variation of nuclear properties are studied. Target nuclei range from proton- to neutron-dripline for 10<=Z<=83. Reactions considered are nucleon- and alpha-induced reactions mediated by the…

Solar and Stellar Astrophysics · Physics 2015-03-13 T. Rauscher

Stellar nucleosynthesis is an important nuclear physics phenomenon that is responsible for presently observed chemical elements and isotope abundances. It is also one of the corner stone hypotheses that provides basis for our understanding…

Solar and Stellar Astrophysics · Physics 2012-03-09 Boris Pritychenko

We present calculations of neutron thermal cross sections, Westcott factors, resonance integrals, Maxwellian-averaged cross sections and astrophysical reaction rates for 843 ENDF materials using data from the major evaluated nuclear…

Solar and Stellar Astrophysics · Physics 2013-09-13 B. Pritychenko , S. F. Mughabghab

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…

Nuclear Theory · Physics 2016-11-15 Saumi Dutta , G. Gangopadhyay , Abhijit Bhattacharyya

We present calculations of neutron thermal cross sections, Westcott factors, resonance integrals, Maxwellian-averaged cross sections, astrophysical reaction rates, and solar system $r$-process abundances using the latest data from the major…

Nuclear Theory · Physics 2025-03-26 B. Pritychenko

In this work, we explore the use of an iterative Bayesian Monte Carlo (IBM) procedure for nuclear data evaluation within a Talys Evaluated Nuclear data Library (TENDL) framework. In order to identify the model and parameter combinations…

Data Analysis, Statistics and Probability · Physics 2020-03-25 E. Alhassan , D. Rochman , A. Vasiliev , M. Wohlmuther , M. Hursin , A. J. Koning , H. Ferroukhi

In several processes of stellar nucleosynthesis, like the astrophysical gamma-process, nuclear reactions involving alpha particles play an important role. The description of these reactions necessitates the knowledge of the alpha-nucleus…

Nuclear Experiment · Physics 2024-06-04 Zs. Mátyus , Gy. Gyürky , P. Mohr , A. Angyal , Z. Halász , G. G. Kiss , Á Tóth , T. Szücs , Zs. Fülöp

Since April 2005 a regularly updated stellar neutron cross section compilation is available online at http://nuclear-astrophysics.fzk.de/kadonis. This online-database is called the "Karlsruhe Astrophysical Database of Nucleosynthesis in…

Astrophysics · Physics 2008-06-13 I. Dillmann , R. Plag , C. Domingo-Pardo , M. Heil , F. Käppeler , T. Rauscher , F. -K. Thielemann

The excitation functions for (n,p) reactions from reaction threshold to 24 MeV on some important iron (Fe) group target elements for astrophysical (n, p) reactions such as Si, Ca, Sc, Ti, Cr, Fe, Co and Ni were calculated using TALYS-1.0…

Nuclear Theory · Physics 2013-03-18 Tarik Siddik
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