Journal of Experimental and Theoretical Physics 

About: Journal of Experimental and Theoretical Physics is an academic journal published by Springer Science+Business Media. The journal publishes majorly in the area(s): Electron & Magnetic field. It has an ISSN identifier of 1063-7761. Over the lifetime, 9593 publications have been published receiving 86926 citations. The journal is also known as: Sov. Phys. JETP & Zh. Eksp. Teor. Fiz..

The Pomeranchuk Singularity in Nonabelian Gauge Theories

Abstract: An integral equation is derived for the t-channel partial wave amplitudes in the investigation of the multi-Regge form of the 2..-->..2+n amplitude. For a t-channel state with isospin T=1 the solution of this equation is a Regge pole. The analytic properties of the isospin T=0, 2 partial wave amplitudes are investigated near the threshold for the production of two or three particles. It is shown that in the j-plane there are moving poles and cuts. For the T=0 vacuum channel it was found that the partial wave amplitude has a fixed square-root type branch point to the right of j=1.

Neutrino Experiments and the Problem of Conservation of Leptonic Charge

Abstract: The possible violations of leptonic charge conservation, which are compatible with experimental data, are large. This paper analyses various experimental setups which would be capable of detecting such hypothetical violations. It is shown that the most sensitive expeJriments are the search for the process $\mu \to e + \gamma$ and especially a search for oscillations of the type $ u \leftrightarrows \bar{ u}$ and $ u_e \leftrightarrows u_\mu$. A nonvanishing neutrino mass could be related to CP-nonconservation and to an electric (and magnetic) dipole moment of the neutrino. Astronomical implications of the oscillation $ u \leftrightarrows \bar{ u}$ are discussed.