On Wed, Apr 24, 2013 at 10:19 PM, Harry Veeder <[email protected]> wrote: > On Wed, Apr 24, 2013 at 10:07 PM, Jones Beene <[email protected]> wrote:
> >> In RPF, Reversible Proton Fusion - the two protons which are immediately >> split from nascent He-2 are technically not the original two protons which >> fused, since there has been color charge alteration in the quarks during the >> brief instant when they were fused. >> >>> However, occasionally one of the protons transforms into a neutron by >> emitting a beta and a neutrino before fission occurs. This results in a >> stable deuteron. If this is correct, then a deuteron is stable because it is >> in a lower energy state than the diproton. >> >> Actually The neutron has mass slightly larger than that of a proton: >> 939.565378 MeV compared to 938.272046 MeV. Consequently, a deuteron has >> slightly more mass than a diproton. >> >> That is one of the many reasons why the reaction on the Sun, the one that >> results in a deuteron is extraordinarily rare. It is basically endothermic. >> >> > Jones, You are consider the combined mass of two isolated protons. However, the mass of a diproton is greater than this and it is greater than the mass of one deuteron. Harry
