Мезонные распады лег ких гиперфрагментов

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The meson decay of light hyperfragments

The binding energies of five types of light hyperfragments, i. e. of atomic nuclei of light elements containing one hyperon instead of one neutron, were measured. The hyperfragments originated by means of the interaction of K^– mesons with the nuclei of light elements, contained in the emulsion.

     

ЗАМЕДЛЕНИЕ И ДИФФУЗИ Я НЕЙТРОНОВ В КОНЕЧНЫ Х СРЕДАХ

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The static model of the nucleon

In this paper the author calculates the magnetic moment of the proton and neutron. It is assumed that both particles are systems composed of the core, nucleon and a cloud of electrically charged mesons. The numerical results are in qualitative agreement with experiment.This paper is a report from part of the Candidate's thesis elaborated under the guidance of Academician A. V. Fok in Leningrad.     

On the anisotropy of a heterogeneous medium with respect to the diffusion of neutrons I

Equations are derived for the diffusion of monoenergetic neutrons in a stratified heterogeneous medium. The neutron sources are plane and are located at infinity. The problem of homogenization and anisotropy of the heterogeneous medium is solved on the assumption of microscopic isotropy of scattering of the neutrons. The problem is solved quite generally (general position of the source, active and inactive medium). It confirms the conclusions reached in paper [3]from the more general point of view and is again in disagreement with the conclusions of paper [8].This disagreement is explained by the use of equations of the kinetic theory of the diffusion of neutrons.     

A New Chvátal Type Condition for Pancyclicity

Schmeichel and Hakimi [5], and Bauer and Schmeichel [1] gave an evidence in support of the well-known Bondy’s “metaconjecture” that almost any non-trivial condition on graphs which implies that the graph is hamiltonian also implies that it is pancyclic. In particular, they proved that the metaconjecture is valid for Chvátal’s condition [3]. We slightly generalize their results giving a new Chvâtal type condition for pancyclicity.