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Title: A status report of the data evaluation in the NACRE update and extension project

Abstract

Since its publication in 1999, the NACRE compilation of thermonuclear reaction rates of astrophysical interest has been widely used in studies of stellar evolution and concomitant nucleosynthesis processes. In consideration of ever-accumulating experimental data, the NACRE update and extension project is under way in the framework of a Konan-ULB convention. The goal is to ''evaluate'' the existing experimental data, and to provide reliable thermonuclear reaction rates at low-energies as astrophysical applications call for. The phenomenological approaches such as the potential model, R-matrix method, and DWBA are adopted in the evaluation. The astrophysical S-factors of the 7Be(p,{gamma})8B, 20Ne(p,{gamma})21Na, 3H(d,n)4He, and 3He(d,p)4He reactions are investigated with those three models, for instance. The experimental S-factor data can be reproduced well by our models.

Authors:
 [1]
  1. Institut d'Astronomie et d'Astrophysique, Universite Libre de Bruxelles, Campus de la Plaine, 1050 Brussels (Belgium)
Publication Date:
OSTI Identifier:
21056761
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 891; Journal Issue: 1; Conference: 6. Symposium on nuclear physics, Tours (France), 5-8 Sep 2006; Other Information: DOI: 10.1063/1.2713537; (c) 2007 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; ASTROPHYSICS; BERYLLIUM 7 TARGET; BORON 8; CAPTURE; DATA ANALYSIS; DEUTERON REACTIONS; DEUTERONS; DWBA; EVALUATION; HELIUM 3 TARGET; HELIUM 4; NEON 20 TARGET; POTENTIALS; PROTON REACTIONS; PROTONS; R MATRIX; SODIUM 21; SPECTROSCOPIC FACTORS; STAR EVOLUTION; THERMONUCLEAR REACTIONS

Citation Formats

Katsuma, M. A status report of the data evaluation in the NACRE update and extension project. United States: N. p., 2007. Web. doi:10.1063/1.2713537.
Katsuma, M. A status report of the data evaluation in the NACRE update and extension project. United States. doi:10.1063/1.2713537.
Katsuma, M. Mon . "A status report of the data evaluation in the NACRE update and extension project". United States. doi:10.1063/1.2713537.
@article{osti_21056761,
title = {A status report of the data evaluation in the NACRE update and extension project},
author = {Katsuma, M.},
abstractNote = {Since its publication in 1999, the NACRE compilation of thermonuclear reaction rates of astrophysical interest has been widely used in studies of stellar evolution and concomitant nucleosynthesis processes. In consideration of ever-accumulating experimental data, the NACRE update and extension project is under way in the framework of a Konan-ULB convention. The goal is to ''evaluate'' the existing experimental data, and to provide reliable thermonuclear reaction rates at low-energies as astrophysical applications call for. The phenomenological approaches such as the potential model, R-matrix method, and DWBA are adopted in the evaluation. The astrophysical S-factors of the 7Be(p,{gamma})8B, 20Ne(p,{gamma})21Na, 3H(d,n)4He, and 3He(d,p)4He reactions are investigated with those three models, for instance. The experimental S-factor data can be reproduced well by our models.},
doi = {10.1063/1.2713537},
journal = {AIP Conference Proceedings},
number = 1,
volume = 891,
place = {United States},
year = {Mon Feb 26 00:00:00 EST 2007},
month = {Mon Feb 26 00:00:00 EST 2007}
}
  • NACRE, the 'nuclear astrophysics compilation of reaction rates', has been widely utilized in stellar evolution and nucleosynthesis studies since its publication in 1999. We describe here the current status of a Konan-Universite Libre de Brussels (ULB) joint project that aims at its update and extension.
  • NACRE, the 'nuclear astrophysics compilation of reaction rates', has been widely utilized in stellar evolution and nucleosynthesis studies. Its update and extension programme started within a Konan-Universite Libre de Bruxelles (ULB) collaboration. At the present moment, experimental data in refereed journals have been collected, and their theoretical extrapolations are being performed using the R-matrix or potential models. For the 3H(d,n)4He and 2H(p,{gamma})3He reactions, we present preliminary results that could well reproduce the experimental data.
  • The NACRE-II project, which aims at an update and extension of the previous NACRE compilation of the thermonuclear reaction rates of charged-particle induced reactions on light nuclei of astrophysical interest, is briefly reviewed. After a short introduction to the history of the project, a few results are presented in order to exemplify the current status.
  • A detailed and comprehensive discussion is presented of the oil and gas supply model which is used to construct the oil and gas supply curves which are used by PIES. An overview description of the model and the modeling methodology as well as details on the data input requirements are also presented.