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Title: Astrophysical [ital S] factor for [sup 9]Be(p,[gamma])[sup 10]B

Abstract

The [sup 9]Be(p,[gamma])[sup 10]B reaction plays an important role in primordial and stellar nucleosynthesis of light elements in the [ital p] shell, but the energy dependence of S(E) has not been well understood. We reanalyze the existing [sup 9]Be(p,[gamma])[sup 10]B experimental data within the framework of the [ital R]-matrix method. The direct capture part of the [ital S] factor is calculated using the experimentally measured asymptotic normalization coefficients for [sup 10]B[r arrow][sup 9]Be+p. The fitted parameters of the low-lying [sup 10]B resonances are also required to be consistent with previous measurements of [sup 6]Li([alpha],[gamma])[sup 10]B. A good simultaneous fit to both radiative capture reactions is found, in contrast to previous analyses. These results demonstrate that experimentally measured asymptotic normalization coefficients, coupled to the [ital R]-matrix method, can provide a reasonable determination of direct radiative capture rates, even when the captured proton is tightly bound in the final nucleus. [copyright] [ital 1999] [ital The American Physical Society]

Authors:
; ; ; ; ;  [1]
  1. (Cyclotron Institute, Texas AM University, College Station, Texas 77843 (United States))
Publication Date:
OSTI Identifier:
6325971
Alternate Identifier(s):
OSTI ID: 6325971
Resource Type:
Journal Article
Journal Name:
Physical Review, C
Additional Journal Information:
Journal Volume: 60:3; Journal ID: ISSN 0556-2813
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; BERYLLIUM 9 TARGET; BORON 10; CAPTURE; NUCLEOSYNTHESIS; PROTON REACTIONS; R MATRIX; STAR MODELS; BARYON REACTIONS; BORON ISOTOPES; CHARGED-PARTICLE REACTIONS; HADRON REACTIONS; ISOTOPES; LIGHT NUCLEI; MATHEMATICAL MODELS; MATRICES; NUCLEAR REACTIONS; NUCLEI; NUCLEON REACTIONS; ODD-ODD NUCLEI; STABLE ISOTOPES; SYNTHESIS; TARGETS 663430* -- Nucleon-Induced Reactions & Scattering-- (1992-); 661300 -- Other Aspects of Physical Science-- (1992-)

Citation Formats

Sattarov, A., Mukhamedzhanov, A.M., Azhari, A., Gagliardi, C.A., Trache, L., and Tribble, R.E. Astrophysical [ital S] factor for [sup 9]Be(p,[gamma])[sup 10]B. United States: N. p., 1999. Web. doi:10.1103/PhysRevC.60.035801.
Sattarov, A., Mukhamedzhanov, A.M., Azhari, A., Gagliardi, C.A., Trache, L., & Tribble, R.E. Astrophysical [ital S] factor for [sup 9]Be(p,[gamma])[sup 10]B. United States. doi:10.1103/PhysRevC.60.035801.
Sattarov, A., Mukhamedzhanov, A.M., Azhari, A., Gagliardi, C.A., Trache, L., and Tribble, R.E. Wed . "Astrophysical [ital S] factor for [sup 9]Be(p,[gamma])[sup 10]B". United States. doi:10.1103/PhysRevC.60.035801.
@article{osti_6325971,
title = {Astrophysical [ital S] factor for [sup 9]Be(p,[gamma])[sup 10]B},
author = {Sattarov, A. and Mukhamedzhanov, A.M. and Azhari, A. and Gagliardi, C.A. and Trache, L. and Tribble, R.E.},
abstractNote = {The [sup 9]Be(p,[gamma])[sup 10]B reaction plays an important role in primordial and stellar nucleosynthesis of light elements in the [ital p] shell, but the energy dependence of S(E) has not been well understood. We reanalyze the existing [sup 9]Be(p,[gamma])[sup 10]B experimental data within the framework of the [ital R]-matrix method. The direct capture part of the [ital S] factor is calculated using the experimentally measured asymptotic normalization coefficients for [sup 10]B[r arrow][sup 9]Be+p. The fitted parameters of the low-lying [sup 10]B resonances are also required to be consistent with previous measurements of [sup 6]Li([alpha],[gamma])[sup 10]B. A good simultaneous fit to both radiative capture reactions is found, in contrast to previous analyses. These results demonstrate that experimentally measured asymptotic normalization coefficients, coupled to the [ital R]-matrix method, can provide a reasonable determination of direct radiative capture rates, even when the captured proton is tightly bound in the final nucleus. [copyright] [ital 1999] [ital The American Physical Society]},
doi = {10.1103/PhysRevC.60.035801},
journal = {Physical Review, C},
issn = {0556-2813},
number = ,
volume = 60:3,
place = {United States},
year = {1999},
month = {9}
}