期刊
NUCLEAR PHYSICS A
卷 706, 期 1-2, 页码 203-216出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/S0375-9474(02)00749-2
关键词
2H (p, gamma), E=4-32 KeV; measured sigma, astrophysical S-factors
Using the 50 kV LUNA accelerator facility at the Gran Sasso underground laboratory we measured, with an accuracy of the order of 10%, the d(p,gamma)He-3 cross section from 22 down to keV c.m. energy, well below the solar Gamow peak. The experimental set-up was based on a large solid angle, segmented BGO detector and a renewed windowless gas target. The astrophysical S(E) factor within the Gamow peak is in fair agreement with the value of one of the existing extrapolations of data at higher energies. (C) 2002 Elsevier Science B.V. All rights reserved.
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