Summary
We propose a composite model in which quarks and leptons are made up of three preons and gauge bosons of two preons. It is then shown thatCP is violated in only one generation of u and d quarks and also in pure leptonic interactions.
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Sugita, K., Okamoto, Y. & Sekine, M. CP violation in preon model. Nuov Cim A 105, 1051–1053 (1992). https://doi.org/10.1007/BF02730844
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DOI: https://doi.org/10.1007/BF02730844