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Mars
2004-May-13, 02:58 AM
Where do the neutrons form when you have a Hydrogen Fusion Reaction in the core of a star. He has an atomic mass of about 4, H has an atomic mass of 1.008.

swansont
2004-May-13, 10:49 AM
During a p-p collision, one proton changes into a neutron and emits a positron and a neutrino, and results in the formation of deuterium. IIRC, this step has a particularly low cross section (long time constant)

Mars
2004-May-13, 12:25 PM
That makes sense.