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Hadronic Matrix Elements for Kaons
Johan Bijnens, Elvira Gamiz, Joaquim Prades
We review some work done by us calculating matrix elements for Kaons. Emphasis is put on the matrix elements which are relevant to predict non-leptonic Kaon CP violating observable…
Chiral Dynamics in the Meson Sector at two Loops
Johan Bijnens
I give a very short introduction to Chiral Perturbation Theory and an overview of the next-to-next-to-leading order three-flavour calculations done. I discuss those relevant for an…
Scalar Form Factors in SU(3) Chiral Perturbation Theory
Johan Bijnens, Pierre Dhonte
The scalar form factors for the pions and kaons are calculated in SU(3) Chiral Perturbation Theory at order , in the isospin limit . We find in general sizabl…
Chiral Perturbation Theory at Two Loops and the Measurement of
Johan Bijnens
I give an overview of the calculations done in three-flavour Chiral perturbation theory at next-to-next-to-leading order with an emphasis on those relevant for an improvement in th…
QCD Short-distance Constraints and Hadronic Approximations
Johan Bijnens, Elvira Gamiz, Edisher Lipartia +1
This paper discusses a general class of ladder resummation inspired hadronic approximations. It is found that this approach naturally reproduces many successes of single meson per…