Updated $S$ factors for the $^{7}\mathrm{Be}(p,\ensuremath{\gamma})^{8}\mathrm{B}$ reaction

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Updated $S$ factors for the ${}^{7}{Be} (p, γ) {}^{8}B$ reaction

A. R. Junghans, K. A. Snover, E. C. Mohrmann, E. G. Adelberger, and L. Buchmann

Phys. Rev. C 81, 012801(R) – Published 8 January 2010

Abstract

We present revised ${}^{7}{Be} (p, γ) {}^{8}B$ $S$ factors based on our previously published measurements, using a more detailed target analysis and improved stopping powers. Extrapolating our data below the $1^{+}$ resonance to solar energies using the latest cluster model calculations of Descouvemont, we find that $S_{17} (0) = 21.5 \pm 0.6$ (expt) $\pm$ 0.7(theor) eV b. Fitting all modern, low-energy $(p, γ)$ data with the same theory, we find a “best” value of $S_{17} (0) = 20.9 \pm 0.6$ (expt) $\pm$ 0.7(theor) eV b.

Received 16 September 2009

DOI:https://doi.org/10.1103/PhysRevC.81.012801

Authors & Affiliations

A. R. Junghans^*

Forschungszentrum Dresden Rossendorf, Postfach 510119, D-01324 Dresden, Germany

K. A. Snover^†, E. C. Mohrmann^‡, and E. G. Adelberger

Center for Experimental Nuclear Physics and Astrophysics, University of Washington, Seattle, Washington 98195, USA

L. Buchmann

TRIUMF, 4004 Wesbrook Mall, Vancouver, British Columbia V6T 2A3, Canada

^*A.Junghans@fzd.de
^†snover@u.washington.edu
^‡Permanent address: DigiPen Institute of Technology, Redmond, Washington 98052, USA.

Precise measurement of the ${}^{7}{Be} (p, γ) {}^{8}B$ $S$ factor

A. R. Junghans, E. C. Mohrmann, K. A. Snover, T. D. Steiger, E. G. Adelberger, J. M. Casandjian, H. E. Swanson, L. Buchmann, S. H. Park, A. Zyuzin, and A. M. Laird

Phys. Rev. C 68, 065803 (2003)

${}^{7}B e (p, γ) {}^{8}B$ Astrophysical S Factor from Precision Cross Section Measurements

A. R. Junghans, E. C. Mohrmann, K. A. Snover, T. D. Steiger, E. G. Adelberger, J. M. Casandjian, H. E. Swanson, L. Buchmann, S. H. Park, and A. Zyuzin

Phys. Rev. Lett. 88, 041101 (2002)

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Vol. 81, Iss. 1 — January 2010

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Physical Review C

covering nuclear physics

Updated $S$ factors for the ${}^{7}{Be} (p, γ) {}^{8}B$ reaction

A. R. Junghans, K. A. Snover, E. C. Mohrmann, E. G. Adelberger, and L. Buchmann

Phys. Rev. C 81, 012801(R) – Published 8 January 2010

Abstract

Authors & Affiliations

See Also

Precise measurement of the ${}^{7}{Be} (p, γ) {}^{8}B$ $S$ factor

A. R. Junghans, E. C. Mohrmann, K. A. Snover, T. D. Steiger, E. G. Adelberger, J. M. Casandjian, H. E. Swanson, L. Buchmann, S. H. Park, A. Zyuzin, and A. M. Laird

Phys. Rev. C 68, 065803 (2003)

${}^{7}B e (p, γ) {}^{8}B$ Astrophysical S Factor from Precision Cross Section Measurements

A. R. Junghans, E. C. Mohrmann, K. A. Snover, T. D. Steiger, E. G. Adelberger, J. M. Casandjian, H. E. Swanson, L. Buchmann, S. H. Park, and A. Zyuzin

Phys. Rev. Lett. 88, 041101 (2002)

Article Text (Subscription Required)

References (Subscription Required)

Issue

Access Options

Physical Review C

covering nuclear physics

Updated S factors for the Be7(p,γ)B8 reaction

A. R. Junghans, K. A. Snover, E. C. Mohrmann, E. G. Adelberger, and L. Buchmann

Phys. Rev. C 81, 012801(R) – Published 8 January 2010

Abstract

Authors & Affiliations

See Also

Precise measurement of the Be7(p,γ)B8 S factor

A. R. Junghans, E. C. Mohrmann, K. A. Snover, T. D. Steiger, E. G. Adelberger, J. M. Casandjian, H. E. Swanson, L. Buchmann, S. H. Park, A. Zyuzin, and A. M. Laird

Phys. Rev. C 68, 065803 (2003)

B7e(p,γ)B8 Astrophysical S Factor from Precision Cross Section Measurements

A. R. Junghans, E. C. Mohrmann, K. A. Snover, T. D. Steiger, E. G. Adelberger, J. M. Casandjian, H. E. Swanson, L. Buchmann, S. H. Park, and A. Zyuzin

Phys. Rev. Lett. 88, 041101 (2002)

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Updated $S$ factors for the ${}^{7}{Be} (p, γ) {}^{8}B$ reaction

Precise measurement of the ${}^{7}{Be} (p, γ) {}^{8}B$ $S$ factor

${}^{7}B e (p, γ) {}^{8}B$ Astrophysical S Factor from Precision Cross Section Measurements