570 citations · 9.2k across the 173 of their papers we have counts for
6 papers · 2 filters
Extraction of m_s and |V_us| from Hadronic Tau Decays
Elvira Gamiz, Matthias Jamin, Antonio Pich +2
We review recent work to determine the strange quark mass m_s as well as the proposal to determine |V_{us}| using hadronic tau decay data. The recent update of the strange spectral…
Present Status of Chiral Perturbation Theory
A. Pich
The basic ideas and methods of chiral perturbation theory are briefly reviewed. I discuss the recent attempts to build an effective Lagrangian in the resonance region and summarize…
V_us and m_s from hadronic tau decays
E. Gamiz, M. Jamin, A. Pich +2
Recent experimental results on hadronic tau decays into strange particles by the OPAL collaboration are employed to determine V_us and m_s from moments of the invariant mass distri…
Quantum Loops in the Resonance Chiral Theory: The Vector Form Factor
I. Rosell, J. J. Sanz-Cillero, A. Pich
We present a calculation of the Vector Form Factor at the next-to-leading order in the 1/N_C expansion, within the framework of Resonance Chiral Theory. The calculation is performe…
Chiral loop corrections and isospin violation effects in epsilon'/epsilon
A. Pich
A complete analysis of isospin breaking in amplitudes, including both strong and electromagnetic corrections at next-to-leading order in chiral perturbation theory, has b…
Order p^6 chiral couplings from the scalar K Pi form factor
Matthias Jamin, Jose Antonio Oller, Antonio Pich
Employing results from a recent determination of the scalar KPi form factor F_0^KPi within a coupled channel dispersion relation analysis \cite{JOP01}, in this work we calculate th…