The fate of 7Be in the sun

C. W. Johnson, E. Kolbe, S. E. Koonin, K. Langanke

Research output: Contribution to journalArticle

Abstract

We reexamine the electron- and proton-capture rates of 7Be important to the solar neutrino "problem." Although the assumptions implied by the traditional Debye approximation for plasma screening are not valid, a careful numerical study changes the electron capture rate by less than 2%. We extrapolate experimental data on the proton capture reaction to astrophysically relevant energies using an energy dependence that includes d-wave scattering and is shown to be relatively independent of the model space and interaction used. We find that the solar proton capture rate is lowered by approximately 7% from the currently accepted value.

Original languageEnglish (US)
Pages (from-to)320-327
Number of pages8
JournalAstrophysical Journal
Volume392
Issue number1
StatePublished - Jun 10 1992

Fingerprint

sun
solar protons
electron
wave scattering
protons
solar neutrinos
electron capture
energy
screening
plasma
approximation
rate
electrons
interactions

Keywords

  • Nuclear reactions, nucleosynthesis, abundances
  • Sun: abundances

ASJC Scopus subject areas

  • Space and Planetary Science
  • Nuclear and High Energy Physics

Cite this

Johnson, C. W., Kolbe, E., Koonin, S. E., & Langanke, K. (1992). The fate of 7Be in the sun. Astrophysical Journal, 392(1), 320-327.

The fate of 7Be in the sun. / Johnson, C. W.; Kolbe, E.; Koonin, S. E.; Langanke, K.

In: Astrophysical Journal, Vol. 392, No. 1, 10.06.1992, p. 320-327.

Research output: Contribution to journalArticle

Johnson, CW, Kolbe, E, Koonin, SE & Langanke, K 1992, 'The fate of 7Be in the sun', Astrophysical Journal, vol. 392, no. 1, pp. 320-327.
Johnson CW, Kolbe E, Koonin SE, Langanke K. The fate of 7Be in the sun. Astrophysical Journal. 1992 Jun 10;392(1):320-327.
Johnson, C. W. ; Kolbe, E. ; Koonin, S. E. ; Langanke, K. / The fate of 7Be in the sun. In: Astrophysical Journal. 1992 ; Vol. 392, No. 1. pp. 320-327.
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