Is e+e- pair emission important in the determination of the 3He+4He S factor?

Details Is e+e- pair emission important in the determination of the 3He+4He S factor? Is e+e- pair emission important in the determination of the 3He+4He S factor?

May 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003phrvc..67e5801s&link_type=abstract

Physical Review C, vol. 67, Issue 5, id. 055801

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7

Hydrostatic Stellar Nucleosynthesis, Radiative Capture, Internal Pair Production, Solar Neutrinos

Scientific paper

We show that the cross section for direct E0 pair emission is related to the cross section for direct E2 photon emission, and is a negligible contribution to the total capture cross section for 3He+4He→7Be. E0 resonance emission, E1 pair emission, and internal conversion are also negligible. Thus there cannot be significant contributions to the 3He+4He→7Be capture cross section at low energies from electromagnetic emission processes other than single photon emission.

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