Problem 1:At very high temperatures (as in the very early universe), the proton and the neutron can bethought of as two different states of the same particle, called the “nucleon". (The reactions thatconvert a proton to a neutron or vice versa require the absorption of an electron or a positron or aneutrino, but all of these particles tend to be very abundant at sufficiently high temperatures.)Since the neutron's mass is higher than the proton's by 2.3 x 10-30kg, its energy is higher bythis amount times c2. Suppose, then, that at some very early time, the nucleons were in thermalequilibrium with the rest of the universe at 1011K. What fraction of the nucleons at that timewere protons, and what fraction were neutrons?

Basic Details The probability of finding a particle in space is dependent on the energy of the…

Answered: Problem 1: At very high temperatures…

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