The process of photons transforming into quarks is not observed in the universe as we currently understand it. Photons and quarks are fundamental particles with distinct properties, and they do not undergo direct conversions into one another.
After the Big Bang, the universe was extremely hot and dense, composed primarily of a hot plasma of particles. During this early stage, the energy density was so high that it was not possible for quarks to exist as free particles. Instead, quarks were confined within particles called hadrons, such as protons and neutrons.
Photons, on the other hand, are particles of light and electromagnetic radiation. They have different properties from quarks and do not spontaneously transform into them. Photons can interact with other particles through processes like absorption or emission, but they do not directly convert into quarks.
It's important to note that our understanding of the early universe and particle physics is based on theoretical models and experimental observations, but there are still many aspects that remain unexplored or under active research. If new discoveries or theories emerge in the future that challenge our current understanding, our knowledge may evolve accordingly.