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14 papers · 1 filter
Quantal Overlapping Resonance Criterion in the Pullen Edmonds Model
S. Graffi, V. R. Manfredi, L. Salasnich
In order to highlight the onset of chaos in the Pullen-Edmonds model a quantal analog of the resonance overlap criterion has been examined. A quite good agreement between analytica…
Do the Age of the Universe and the Hubble Constant Depend on What Scale One Observes Them?
C. W. Kim
The apparent cosmological conflict between the age of the Universe, predicted in the standard Friedman cosmology by using the recent measurement of the larger Hubble constant from…
Linear And Nonlinear Mechanisms Of Information Propagation
Antonio Politi, Alessandro Torcini
The mechanisms of information transmission are investigated in a lattice of coupled continuous maps, by analyzing the propagation of both finite and infinitesimal disturbances. Two…
Charge Exchange Processes between Excited Helium and Fully Stripped Ions
L. Salasnich, F. Sattin
We made a classical trajectory Monte Carlo (CTMC) calculation of state selective cross sections for processes between some light ions and excited helium. The results, useful for an…
Charge Exchange Processes between Excited Helium and Fully Stripped Ions
L. Salasnich, F. Sattin
We made a classical trajectory Monte Carlo (CTMC) calculation of state selective cross sections for processes between some light ions and excited helium. The results, useful for an…
Low Energy Effective Lagrangian of the Bess Model
L. Anichini, R. Casalbuoni, S. De Curtis
In this paper the low energy limit of the BESS model is studied in a systematic way. The method consists in eliminating the heavy vector field, by use of its classical equations of…