Low-energy measurement of the Be-7(p,gamma)B-8 cross section

Authors
Hammache, F Bogaert, G Aguer, P Angulo, C Barhoumi, S Brillard, L Chemin, JF Claverie, G Coc, A Hussonnois, M Jacotin, M Kiener, J Lefebvre, A Le Naour, C Ouichaoui, S Scheurer, JN Tatischeff, V Thibaud, JP Virassamynaiken, E
Citation
F. Hammache et al., Low-energy measurement of the Be-7(p,gamma)B-8 cross section, PHYS REV L, 86(18), 2001, pp. 3985-3988
Citations number
23
Categorie Soggetti
Physics
Journal title
PHYSICAL REVIEW LETTERS
ISSN journal
00319007 → ACNP
Volume
86
Issue
18
Year of publication
2001
Pages
3985 - 3988
Database
ISI
SICI code
0031-9007(20010430)86:18<3985:LMOTBC>2.0.ZU;2-Q
Abstract
We have measured the cross section of the Be-7(p, gamma)B-8 reaction for E- c.m. = 185.8, 134.7. and 111.7 keV using a radioactive Be-7 target (132 mCi ). Single and coincidence spectra of beta (+) and alpha particles from B-8 and Be-8* decay, respectively, were measured using a large acceptance spect rometer. 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 uncertaint y included) is deduced when combining this value with our previous results at higher energies.