253 citations · 744 across the 15 of their papers we have counts for
15 papers
The Goldberger-Miyazawa-Oehme sum rule revisited
V. V. Abaev, P. Metsä, M. E. Sainio
The Goldberger-Miyazawa-Oehme sum rule is used to extract the pion-nucleon coupling constant from experimental N information. Chiral perturbation theory is exploited in relating…
Revisiting γγ->π^+π^- at low energies
Juerg Gasser, Mikhail A. Ivanov, Mikko E. Sainio
We complete the recalculation of the available two-loop expressions for the reaction γγ->ππin the framework of chiral perturbation theory. Here, we present the results for charged…
Low-energy photon-photon collisions to two loops revisited
Juerg Gasser, Mikhail A. Ivanov, Mikko E. Sainio
In view of ongoing experimental activities to determine the pion polarizabilities, we have started to recalculate the available two-loop expressions in the framework of chiral pert…
Pion-nucleon sigma-term - a review
M. E. Sainio
A brief review of the pion-nucleon sigma-term is given. Aspects of both chiral perturbation theory and phenomenology are discussed.
Resurrecting the KH78/80 partial wave analysis
P. Piirola, E. Pietarinen, M. E. Sainio
Most of the data from the meson factories were available only after the partial wave analysis of Koch and Pietarinen was published over 20 years ago. Since then, both the expe…
Sigma-term physics
J. Gasser, M. E. Sainio
We consider sigma-terms in , and scattering. While the state of the art in is in principle crystal clear, the kaon-nucleon case is largely unexplored. The pion-…