760 citations · 1.8k across the 24 of their papers we have counts for
24 papers
Cottingham formula and nucleon polarizabilities
J. Gasser, M. Hoferichter, H. Leutwyler +1
The difference between the electromagnetic self-energies of proton and neutron can be calculated with the Cottingham formula, which expresses the self-energies as an integral over…
On the pion decay constant
J. Gasser, G. R. S. Zarnauskas
The pion decay constant f_pi plays a crucial role in many areas of low energy particle physics. Its value may e.g. be deduced from experimental data on leptonic pion decays. Here,…
Relations between SU(2)- and SU(3)-LECs in chiral perturbation theory
Juerg Gasser, Christoph Haefeli, Mikhail A. Ivanov +1
Chiral perturbation theory in the two--flavour sector allows one to analyse Green functions in QCD in the limit where the strange quark mass is considered to be large in comparison…
Radiative corrections in K --> 3 pi decays
M. Bissegger, A. Fuhrer, J. Gasser +2
We investigate radiative corrections to K --> 3 pi decays. In particular, we extend the non-relativistic framework developed recently to include real and virtual photons and show t…
Hadronic atoms in QCD + QED
J. Gasser, V. E. Lyubovitskij, A. Rusetsky
We review the theory of hadronic atoms in QCD + QED, based on a non-relativistic effective Lagrangian framework. We first provide an introduction to the theory, and then describe s…
Cusps in K_L --> 3 pi decays
M. Bissegger, A. Fuhrer, J. Gasser +2
The pion mass difference generates a pronounced cusp in K --> 3 pi decays, the strength of which is related to the pi pi S-wave scattering lengths. We apply an effective field theo…