The pd→3HΛK+pd\to ^3H_\Lambda K^+ reaction cross section

The one- and two-step mechanisms of the $pd\to ^3H_\Lambda K^+$ reaction in the range of incident proton kinetic energy 1.13-3.0 GeV have been investigated. A remarkable peculiarity of the two-step mechanism which incorporates subprocesses $pp\to d\pi ^+$ and $\pi^+n\to K^+\Lambda$ is the so called velocity matching providing the presence of all intermediate particles nearly to the on-mass-shell. The differential cross section has been calculated using a realistic model for the hypertritium $^3H_\Lambda$ wave function. The maximum value of the cross section is estimated as $\sim$1nb/sr. The contribution of the one-step mechanism with the elementary process $pN\to NK\Lambda$ into the cross section has been found to be two - three orders of magnitude smaller in comparison with the two-step mechanism.Comment: 10 pages, Latex, 3 Postscript figure

Excited state of 15C Jπ = 5/2+ nucleus and inelastic scattering of protons

Section IV. Nuclear Reactions Theor

COGNITIVE FEATURES OF TERMS

In this paper, on the material of the Kazakh and Russian languages is determined by the cognitive nature of terms. In the paradigm of cognitive terminology the term is understood as information and cognitive structure, accumulating special knowledge needed in the process of scientific communication and professional and scientific activity. Terms as mental representations have the following characteristics: reflect the results of cognitive human activity, scientific way of thinking, are the means of knowledge of reality, a factor of particular social importance, as they reflect the needs of society in a particular scientific information.More or fewer number of terms representing the analyzed subject group is determined by the role that animals perform in the life of a particular people