期刊
JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS
卷 36, 期 2, 页码 -出版社
IOP PUBLISHING LTD
DOI: 10.1088/0954-3899/36/2/025203
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Nuclear electron capture rate from continuum in an astrophysical plasma environment (like solar core) is calculated using a modified Debye-Huckel screening potential and the related non-Gaussian q-distribution of electron momenta. For q = 1 the well-known Debye-Huckel results are recovered. The value of q can be derived from the fluctuation of number of particles and temperature inside the Debye sphere. For Be-7 continuum electron capture in solar core, we find an increase of 7-10% over the rate calculated with standard Debye-Huckel potential. The consequence of these results is a reduction of the same percentage of the SSM B-8 solar neutrino flux, leaving the SSM Be-7 flux unchanged.
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