4 papers · 1 filter
Finite energy sum rules for the vector current: the strange quark mass
Markus Eidemuller, Matthias Jamin, Felix Schwab
We determine the strange quark mass in the framework of finite energy sum rules from the vector current channel. The theoretical contributions are calculated in contour improved pe…
A novel route to V_us
Matthias Jamin
Already in the past, hadronic tau decays have served as an interesting source to obtain information on the parameters of the Standard Model, like the strong coupling alpha_s or the…
Theoretical status of epsilon'/epsilon
Matthias Jamin
The present theoretical status of the parameter for direct CP violation epsilon'/epsilon in the Standard Model is reviewed and compared with most recent experimental measurements o…
The Anatomy of eps'/eps Beyond Leading Logarithms with Improved Hadronic Matrix Elements
Matthias Jamin
Results of a recent calculation of the effective $\dS$ Hamiltonian at the next-to-leading order will be presented\footnote{Work done in collaboration with A. J. Buras and M. E. Lau…