Abstract
We discuss the 5 quark model of Peskin and Tye. We derive the general form of the weak currents. The phenomenology of FCNC puts severe constraints on the mixing angles. When these constraints are fulfilled the model can hardly be distinguished from the standard model. A possible experimental test is radiative decay of theB 0 meson. In this model it is about an order of magnitude bigger. We also analyzed if the smallness of the mixing angles could be understood in a natural way. Using discrete symmetries we failed in finding a solution in agreement with all present data.
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Decker, R. Electroweak interactions within a five quark model. Z. Phys. C - Particles and Fields 14, 303–307 (1982). https://doi.org/10.1007/BF01578650
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DOI: https://doi.org/10.1007/BF01578650