<span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><mmultiscripts><mrow><mi>B</mi></mrow><mprescripts></mprescripts><mrow></mrow><mrow><mn>7</mn></mrow><mrow></mrow><mrow></mrow></mmultiscripts></mrow><mi>e</mi><mo>(</mo><mi mathvariant="italic">p</mi><mo>,</mo><mi>γ</mi><mo>)</mo><mrow><mmultiscripts><mrow><mi>B</mi></mrow><mprescripts></mprescripts><mrow></mrow><mrow><mn>8</mn></mrow><mrow></mrow><mrow></mrow></mmultiscripts></mrow></math></span> Astrophysical <i>S</i> 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; A. Zyuzin

doi:10.1103/PhysRevLett.88.041101

${}^{7}B e (p, γ) {}^{8}B$ 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 – Published 14 January 2002

Abstract

We measured the $^{7} Be (p, γ)^{8} B$ cross section from ${\bar{E}}_{c . m .} = 186$ to 1200 keV, with a statistical-plus-systematic precision per point of better than $\pm 5 %$ . All important systematic errors were measured including $^{8} B$ backscattering losses. We obtain $S_{17} (0) = 22.3 \pm 0.7 (expt) \pm 0.5 (theor) eV b$ from our data at ${\bar{E}}_{c . m .} \leq 300 keV$ and the theory of Descouvemont and Baye.

Received 13 August 2001

DOI:https://doi.org/10.1103/PhysRevLett.88.041101

Authors & Affiliations

A. R. Junghans, E. C. Mohrmann, K. A. Snover, T. D. Steiger^*, E. G. Adelberger, J. M. Casandjian^†, and H. E. Swanson

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

L. Buchmann, S. H. Park^‡, and A. Zyuzin

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

^*Present address: Cymer, Inc., 16750 Via del Campo Court, San Diego, California 92127.
^†Permanent address: GANIL, B.P. 5027, 14021 Caen Cedex, France.
^‡Permanent address: Department of Physics, National University, Seoul 151-742, Republic of Korea.

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) (2010)

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Vol. 88, Iss. 4 — 28 January 2002

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