Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2005-10-11
Physics
High Energy Physics
High Energy Physics - Phenomenology
137 pages, 33 figures and 4 tables. PhD Thesis
Scientific paper
This PhD Thesis is mainly devoted to the study of hadronic matrix elements of kaons. Its inner structure can be divided in three parts. In Chapter 3 we address the issue of quantum corrections in Resonance Chiral Lagrangians with the aid of the 1/N_c expansion. We compute, as an illustrative example, the coupling L_10 to one loop. Chapters 4 and 5 are the main body of the present work and deal with the determination of the relevant parameters in kaon phenomenology. We give a value for the invariant B_K, the kaon mass difference and \epsilon_K in a model-independent way, paying special attention to the issue of scale and scheme independence. In our approach, this is achieved in a very natural way once matching between long and short distances is ensured. We end up with a final chapter on the subject of duality violations in the VV-AA two-point correlator.
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