ar X iv : h ep - p h / 92 11 29 7 v 1 2 3 N ov 1 99 2 UTPT - 92 - 13 K and B Physics : a way beyond the Standard Model
نویسنده
چکیده
I review some aspects of K and B physics both in the context of the standard model and in some cases in a scenario which is rather different from the standard model. I discuss, in particular, where we are likely to see deviations from the standard model in the near future before new colliders are built. 1. The Three Family Standard Model. In the title, which was given to me by the organizers, I interpret the word way as in path. However it also appears that the title somehow implies that new physics means the standard model is wrong. What if it is right? What would be the path in this case? It is like the story of a visitor to a remote part of Ireland who gets lost. He comes to a cross road where he sees an old man sitting. After passing the time of day with the old man he then asks for directions to the village he wants to visit. The old man thinks for a while and then remarks “If I wanted to go to there, I would not start from here.” 1.1. Unitarity Constraints. The standard model, with three families has the interaction Lagrangian LI = − g √ 2 (ū c̄ t̄)LγμW V
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