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26 papers · 1 filter
Precise Measurement of pi+ -> e+ nu Branching Ratio
E. Frlež, L. P. Alonzi, V. A. Baranov +23
The PEN Collaboration is conducting a new measurement of the pi+ -> e+ nu branching ratio at the Paul Scherrer Institute, with the goal uncertainty of delta B/B(pie2)=5E-4 or lower…
Tristability in the pendula chain
Ramaz Khomeriki, Jerome Leon
Experiments on a chain of coupled pendula driven periodically at one end demonstrate the existence of a novel regime which produces an output frequency at an odd fraction of the dr…
Wave Localization and Density Bunching in Pair Ion Plasmas
Swadesh M. Mahajan, Nana L. Shatashvili
By investigating the nonlinear propagation of high intensity electromagnetic (EM) waves in a pair ion plasma, whose symmetry is broken via contamination by a small fraction of high…
Self-Chaotization in Coupled Optical Waveguides
Ramaz Khomeriki, Archil Ugulava, Levan Chotorlishvili
We consider theoretically two coupled optical waveguides with a varying barrier height along the waveguides direction. The barrier could be constructed by the elongated island with…
Stochastic Resonance in the Fermi-Pasta-Ulam Chain
George Miloshevich, Ramaz Khomeriki, Stefano Ruffo
We consider a damped -Fermi-Pasta-Ulam chain, driven at one boundary subjected to stochastic noise. It is shown that, for a fixed driving amplitude and frequency, increasing the…
Current conservation, screening and the magnetic moment of the resonance: 2. Formulation with quark degrees of freedom 3. Magnetic moment of the and resonances
A. I. Machavariani, Amand Faessler
Our previous paper \cite{MFNEW} is generalized within the field theoretical formulation with the quark degrees of freedom \cite{HW,H,N,Z}, where pions and nucleons are treated as t…