Physics |
|
 |
1996, No. 2
Yu.V. Aleksandrov, E.K. Bashkirov, U.G. Mangulova
DYNAMICS OF THE THREE-LEVEL ATOM IN THE FINITE-Q CAVITY
On the basis of the master equation for the density matrix the dynamics of the three level atom interacting with two mode of quantum electromagnetic field in nonideal resonator has been considered. The behaviour of the mean populations of the atomic levels and mean photon numbers in modes has been investigated.
A.F. Krutov, V.E. Troitskii
ASYMPTOTIC OF PION FORM FACTOR IN THE RELATIVISTIC HAMILTONIAN DYNAMICS
Asymptotic of pion form factor is obtained in the framework of hamiltonian relativistic dynamics at large momentum transfers. Result coincides with prediction of QCD. It is shown that QCD asymptotic arises from relativistic effect of spin rotation and does not depend on choosing of quark antiquark wave function.
A.P. Martynenko, V.A. Saleev
POSITRONIUM PRODUCTION IN THE COLLISIONS OF RELATIVISTIC IONES
It is shown that in the collisions of relativistic iones at the energy range of ∼ GeV/nucleon the positronium production cross section is about of 10-25 cm2 for S wave states and è ∼10-30 cm2 for sum of P wave states.
R.N. Faustov, A.P. Martynenko
TWO FOTON ANNIHILATION CONTRIBUTION TO THE FINE STRUCTURE OF P-WAVE POSITRONIUM
On the basis of the quasipotential method we have obtained the contribution of two foton annihilation diagramms to the interaction operator of P wave positronium. The corrections of order of ff5R∞ and ff5lnffR∞ to the P wave energy levels of positronium were calculated.
V.A. Rozhkov, A.Yu. Trusova, I.G. Berezhnoi
The kinetical dependences of the capacitance of silicon MIS structures with samarium oxide as insulator have been investigated. The life time and rate of surface generation of minority carriers and also the energy level of generating centers in silicon were determined.