3 papers
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…
astro-ph2001
Cosmological Constant from Conformal Fluctuations of the Metric
Alex H. Blin
At the level of the Planck scale, the spacetime metric has to be considered a quantum variable. Conformal quantum fluctuations of the metric tensor are studied here. They lead to 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…