The maximum Helium fraction, Yp, can be determined using a neutron decay time of 89 seconds and a rest mass difference, Qn, of 0.129 MeV. The discussion clarifies that a free neutron decays into a proton, electron, and antineutrino, resulting in hydrogen. However, if the neutron decays within a tritium atom, it can transform into Helium-3 (He-3). The context of the decay process is crucial for accurately calculating Yp.
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One needs to provide more information in order to solve this problem. A free neutron decays into a proton, electron and antineutrino, so the product of free neutron decay would be hydrogen. Or is the neutron decaying in a tritium atom, which then is transformed to He-3?bolahab said:Suppose the neutron decay time n was 89 sec. AND the difference in
rest mass between neutron to proton, Qn, was 0.129 MeV. What would
the maximum Helium fraction, Yp, be?