Semi-leptonic reactions

Phenomenology of semi-leptonic reactions 10.1 Model independent tests... 

Thus the model independent results on semi-leptonic reactions seem to be consistent with the SM expectations. It will be interesting to see in later sections how the model stands up to more detailed experimental studies. 

In the hadronic sector, matters are not so clear cut. The coupling strengths Vij which involve four parameters are introduced at the quark level. Thus we have to find a convincing way to relate information at the quark level to the calculation of hadronic reactions. This step, in principle, involves the strong interactions and is therefore highly non-trivial. FVom this point of view the least difficult reactions are the semi-leptonic ones and we shall concentrate upon them in this chapter. 

If we now go to inclusive semi-leptonic and hadronic decays, our understanding of these reactions is severely limited by our poor knowledge of the hadronic effects involved. 

---