Neutron Anti-Neutron Oscillations in Free Space and in a Nucleus
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A missing piece of our understanding of how the Universe came to be is why there is more matter than anti matter. The most widely accepted model of formation of the Universe predicts that the Big Bang should have created equal parts matter and anti-matter. This disagrees with the fact that our entire universe is made up of matter. A possible explanation is the process of baryogengesis or the spontaneous conversion of baryons into anti-baryons. There are three conditions for this: baryon number violation, cp violation, and that the system be out of thermodynamic equilibrium. This paper focuses on baryon number violation by looking at neutrons turning into anti-neutrons. We derived the probability of a neutron turning into an anti-neutron in free space. Then we calculated the annihilation rate of an anti-neutron and neutron in matter. These derivations and calculations to used calculate the densities of neutrons and anti-neutrons within neutron stars. Administrator only at request of department.
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