3 papers
hep-ph2002
Charged pion pair production by two photons from a chiral sum rule
N. F. Nasrallah, K. Schilcher
The cross-section for a charged pion pair production by two photons is evaluated by using the low energy expression previously obtained from current algebra and PCAC which involves…
hep-ph2002
Hadronic corrections to the muon decay
A. I. Davydychev, K. Schilcher, H. Spiesberger
We consider the O(alpha^2) hadronic corrections to the energy spectrum of the decay electron in muon decay. We find that the correction can be described, within good approximation,…
hep-ph1999
Finite energy chiral sum rules in QCD
C. A. Dominguez, K. Schilcher
A set of well known chiral sum rules, expected to be valid in QCD, is confronted with experimental data on the vector and axial-vector hadronic spectral functions, obtained from ta…