614 citations · 5.4k across the 56 of their papers we have counts for
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The pion and proton mass in finite volume
Gilberto Colangelo, Andreas Fuhrer, Christoph Haefeli
We calculate the finite volume effects for the pion and nucleon mass. For the pion mass we present the results of a full two-loop calculation in chiral perturbation theory. The out…
Theoretical Aspects of the Pion-Pion Interaction
Irinel Caprini, Gilberto Colangelo, Heinrich Leutwyler
We give a brief review of the theoretical description of low energy pion-pion scattering by the combined use of Chiral Perturbation Theory and Roy equations, an update of the Regge…
HadAtom05, Workshop on Hadronic Atoms
L. Afanasyev, G. Colangelo, J. Schacher
These are the proceedings of the workshop "HadAtom05", held at the University of Bern, Switzerland, February 15 and 16, 2005. The main topics of the workshop concerned the physics…
Finite volume effects for meson masses and decay constants
Gilberto Colangelo, Stephan Durr, Christoph Haefeli
We present a detailed numerical study of finite volume effects for masses and decay constants of the octet of pseudoscalar mesons. For this analysis we use chiral perturbation theo…
pi pi scattering, pion form factors and chiral perturbation theory
Gilberto Colangelo
I discuss recent progress in our understanding of the pi pi scattering amplitude at low energy thanks to the combined use of chiral perturbation theory and dispersion relations. I…