760 citations · 1.8k across the 24 of their papers we have counts for
4 papers · 1 filter
Hadronic Atoms in QCD
J. Gasser, V. E. Lyubovitskij, A. Rusetsky
We propose a non relativistic effective Lagrangian approach to study hadronic atom observables in the framework of QCD (including photons). We apply our formalism to derive a gener…
Numerical analysis of the pi+pi- atom lifetime in ChPT
J. Gasser, V. E. Lyubovitskij, A. Rusetsky
We apply Chiral Perturbation Theory at one loop to analyze the general formula for the pi+pi- atom lifetime derived recently in the framework of QCD. The corresponding analytic exp…
Chiral Dynamics
J. Gasser
After a short summary of my talk, I discuss decays and elastic scattering in the framework of chiral perturbation theory.
On the Lifetime of the pi+pi- Atom
A. Gall, J. Gasser, V. E. Lyubovitskij +1
The pi+pi- atom decays -in the ground state - predominantly into two neutral pions. We present a general expression for the corresponding decay width in the framework of QCD (inclu…