Showing hep-phShow all
2 papers · 1 filter
hep-ph2004
The 't Hooft determinant resolution of the eta' puzzle
Alexander A. Osipov, Alex H. Blin, Brigitte Hiller
The six-quark instanton induced 't Hooft interaction, which breaks the unwanted U_A(1) symmetry of QCD, is also a sourse of semi-classical corrections to the low energy effective a…
hep-ph2000
Fluctuations of the Metric Tensor and Fermion Propagators
Alex H. Blin
Conformal fluctuations of the metric tensor at the Planck scale are considered. They give rise to a lower bound of the proper length. This leads to finite expressions for quantitie…