329 citations · 2.3k across the 81 of their papers we have counts for
4 papers · 2 filters
Radiative Return: a progress on FSR tests
S. Ivashyn, H. Czyz, A. Korchin
To improve the accuracy of the e+e- -> pi+pi-gamma Radiative Return method, one has to control the theoretical uncertainty of the final-state photon emission. It is of particular i…
How to define physical properties of unstable particles
J. Gegelia, S. Scherer
In the framework of effective quantum field theory we address the definition of physical quantities characterizing unstable particles. With the aid of a one-loop calculation, we st…
Reply to "Comment on `The polarizability of the pion: no conflict between dispersion theory and chiral perturbation theory'"
B. Pasquini, D. Drechsel, S. Scherer
We reply to the Comment by Fil'kov and Kashevarov, arXiv:0805.4486 [hep-ph]. We show that the discrepancies between ChPT and dispersion theory, reported for the polarizability of t…
Chiral Perturbation Theory: Introduction and Recent Results in the One-Nucleon Sector
Stefan Scherer
We provide an introduction to the basic concepts of chiral perturbation theory and discuss some recent developments in the manifestly Lorentz-invariant formulation of the one-nucle…