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Title: R-matrix Analysis of the 10B(p,{alpha})7Be and 11B(p,{alpha})8Be Reactions at Stellar Energies

Abstract

The available experimental astrophysical S(E) factor data for the 10B(p,{alpha}0.1)7Be and 11B(p,{alpha}0.1)8Be reactions have been analyzed over the C.M. proton energy ranges up to E = 1.00 MeV and 1.45 MeV, respectively, using the R-matrix theory. The extrapolated SBN(E) factor values for bare nuclei led to a stellar rate consistent with the most recent calculations in the case of the 11B(p,{alpha})8Be reaction, and to a 10B(p,{alpha})7Be rate significantly different from previously reported ones at the lowest stellar temperatures. The electron screening enhancement factors have also been extracted. Mainly results concerning the 10B(p,{alpha})7Be reaction are presented here.

Authors:
; ; ; ;  [1]
  1. U.S.T.H.B., Faculte de Physique, B.P. 32, El - Alia, 16111 Bab Ezzouar (Algeria)
Publication Date:
OSTI Identifier:
20798627
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 831; Journal Issue: 1; Conference: International conference on frontiers in nuclear structure, astrophysics, and reactions - FINUSTAR, Isle of Kos (Greece), 12-17 Sep 2005; Other Information: DOI: 10.1063/1.2201014; (c) 2006 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; ALPHA PARTICLES; BERYLLIUM 7; BERYLLIUM 8; BORON 10 TARGET; BORON 11 TARGET; CAPTURE; ELECTRONS; MEV RANGE; NUCLEAR SCREENING; NUCLEOSYNTHESIS; PROTON REACTIONS; R MATRIX

Citation Formats

Trabelsi, A., Belhout, A., Fouka, M., Messahel, L., and Ouichaoui, S. R-matrix Analysis of the 10B(p,{alpha})7Be and 11B(p,{alpha})8Be Reactions at Stellar Energies. United States: N. p., 2006. Web. doi:10.1063/1.2201014.
Trabelsi, A., Belhout, A., Fouka, M., Messahel, L., & Ouichaoui, S. R-matrix Analysis of the 10B(p,{alpha})7Be and 11B(p,{alpha})8Be Reactions at Stellar Energies. United States. doi:10.1063/1.2201014.
Trabelsi, A., Belhout, A., Fouka, M., Messahel, L., and Ouichaoui, S. Wed . "R-matrix Analysis of the 10B(p,{alpha})7Be and 11B(p,{alpha})8Be Reactions at Stellar Energies". United States. doi:10.1063/1.2201014.
@article{osti_20798627,
title = {R-matrix Analysis of the 10B(p,{alpha})7Be and 11B(p,{alpha})8Be Reactions at Stellar Energies},
author = {Trabelsi, A. and Belhout, A. and Fouka, M. and Messahel, L. and Ouichaoui, S.},
abstractNote = {The available experimental astrophysical S(E) factor data for the 10B(p,{alpha}0.1)7Be and 11B(p,{alpha}0.1)8Be reactions have been analyzed over the C.M. proton energy ranges up to E = 1.00 MeV and 1.45 MeV, respectively, using the R-matrix theory. The extrapolated SBN(E) factor values for bare nuclei led to a stellar rate consistent with the most recent calculations in the case of the 11B(p,{alpha})8Be reaction, and to a 10B(p,{alpha})7Be rate significantly different from previously reported ones at the lowest stellar temperatures. The electron screening enhancement factors have also been extracted. Mainly results concerning the 10B(p,{alpha})7Be reaction are presented here.},
doi = {10.1063/1.2201014},
journal = {AIP Conference Proceedings},
number = 1,
volume = 831,
place = {United States},
year = {Wed Apr 26 00:00:00 EDT 2006},
month = {Wed Apr 26 00:00:00 EDT 2006}
}