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G. G. Ryzhikh

Publications and source records attributed to G. G. Ryzhikh.

3 recordsLinked to original sources
arXiv1997

Positronic lithium, an electronically stable Li-e$^+$ ground state

Calculations of the positron-Li system were performed using the Stochastic Variational Method and yielded a minimum energy of -7.53208 Hartree for the L=0 ground state. Unlike previous calculations of this system, the system was found to be stable against dissociation into the Ps + Li$^+$ channel with a binding energy of 0.00217 Hartree and is therefore electronically stable. This is the first instance of a rigorous calculation predicting that it is possible to combine a positron with a neutral atom and form an electronically stable bound state.

physics.atom-ph↗
arXiv1997

Antisymmetrization in the Multicluster Dynamic Model of Nuclei and the Nucleon Exchange Effects

A modified version of the Multicluster Dynamic Model of nuclei is proposed to construct completely antisymmetrized wave functions of multicluster systems. An overlap kernel operator is introduced to renormalize the total wave function after antisymmetrization between nucleons in different clusters. A group-theoretical method is developed to analyze the role of the exchange effects arising in the calculation of the various observables of multicluster systems due to this antisymmetrization. The Antisymmetrized version of the Multicluster Dynamic Model is applied to the six-nucleon systems treating them as alpha-2N ones.The static and dynamic characteristics of the six-nucleon systems manifested in electron and pi-meson scattering, muon capture, beta-decay, pion photoproduction, etc., are calculated.

nucl-th↗