242 citations · 2.7k across the 48 of their papers we have counts for
4 papers · 2 filters
Testing an approximation to large-Nc QCD with a toy model
M. Golterman, S. Peris, B. Phily +1
We consider a simple model of large-Nc QCD defined by a spectrum consisting of an infinite set of equally spaced zero-width vector resonances. This model is an excellent theoretica…
Hadronic light-by-light scattering contribution to the muon g-2: an effective field theory approach
M. Knecht, A. Nyffeler, M. Perrottet +1
The hadronic light-by-light contribution to a_{mu}, the anomalous magnetic moment of the muon, is discussed from the point of view of an effective low-energy theory. As an applicat…
Large-Nc QCD and Low Energy Interactions
Eduardo de Rafael
This talk reviews recent progress in formulating the dynamics of the electroweak interactions of hadrons at low energies, within the framework of the 1/Nc-expansion in QCD. The emp…
A Critical Reassessment of Q7 and Q8 Matrix Elements
Marc Knecht, Santiago Peris, E. de Rafael
We compare recent theoretical determinations of weak matrix elements of the electroweak penguin operators Q7 and Q8. We pay special attention to the renormalization scheme dependen…