Journal
PHYSICAL REVIEW C
Volume 75, Issue 3, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevC.75.034608
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The capture of electrons by the nucleus Be-7 from the three-body initial state p+e(-)+Be-7 in the continuum is studied. On the basis of the expansion of the three-body continuum wave function in the small parameter epsilon approximate to(m(e)/m(p))(1/2) [m(e) (m(p)) is the electron (proton) mass], the role of the protons on the electron capture is considered. The results are compared with the traditional treatment of the electron capture by the nucleus Be-7. For stars with density and temperature like in the center of the Sun the studied mechanism can make a non-negligible contribution to the capture rate.
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