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23 April 2024

» arxiv » nucl-ex/0101014

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Low energy measurement of the 7Be(p,gamma)8B cross section
F. Hammache ; G. Bogaert ; P. Aguer ; C. Angulo ; S. Barhoumi ; L. Brillard ; J.F. Chemin ; G. Claverie ; A. Coc ; M. Hussonnois ; M. Jacotin ; J. Kiener ; A. Lefebvre ; C. Le Naour ; S. Ouichaoui ; J.N. Scheurer ; V. Tatischeff ; J.P. Thibaud ; E. Virassamyna"iken ;
Date:	31 Dec 2000
Journal:	Phys.Rev.Lett. 86 (2001) 3985-3988
Subject:	nucl-ex astro-ph
Abstract:	We have measured the cross section of the 7Be(p,gamma)8B reaction for E_cm = 185.8 keV, 134.7 keV and 111.7 keV using a radioactive 7Be target (132 mCi). Single and coincidence spectra of beta^+ and alpha particles from 8B and 8Be^* decay, respectively, were measured using a large acceptance spectrometer. The zero energy S factor inferred from these data is 18.5 +/- 2.4 eV b and a weighted mean value of 18.8 +/- 1.7 eV b (theoretical uncertainty included) is deduced when combining this value with our previous results at higher energies.
Source:	arXiv, nucl-ex/0101014
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