570 citations · 9.2k across the 173 of their papers we have counts for
6 papers · 2 filters
Strangeness-changing scalar form factors
Matthias Jamin, Jose Antonio Oller, Antonio Pich
We derive expressions for strangeness-changing scalar form factors, which incorporate known theoretical constraints both at low and high energies. Their leading behaviour in the li…
Light quark masses from scalar sum rules
Matthias Jamin, Jose Antonio Oller, Antonio Pich
In this work, the mass of the strange quark is calculated from QCD sum rules for the divergence of the strangeness-changing vector current. The phenomenological scalar spectral fun…
epsilon'/epsilon and Chiral Dynamics
A. Pich
The long-distance contributions to amplitudes can be pinned down, using well established Chiral Perturbation Theory techniques. The strong S--wave rescattering of the two…
Strange Quark Mass from the Invariant Mass Distribution of Cabibbo-Suppressed Tau Decays
S. Chen, M. Davier, E. Gamiz +3
Quark mass corrections to the tau hadronic width play a significant role only for the strange quark, hence providing a method for determining its mass. The experimental input is th…
The Standard Model Prediction for epsilon'/epsilon
E. Pallante, A. Pich, I. Scimemi
We present a detailed analysis of epsilon'/epsilon within the Standard Model, taking into account the strong enhancement through final-state interactions identified in refs. [1] an…
The NNLO tau+tau- Production Cross Section Close to Threshold
P. Ruiz-Femenia, A. Pich
The threshold behaviour of the cross section sigma(e+e+ -> tau+tau-) is analysed, taking into account the known higher-order corrections. At present, this observable can be determi…