On the Field-Theoretical Approach to the Neutron-Antineutron Oscillations in Nuclei - High Energy Physics - Phenomenology

On the Field-Theoretical Approach to the Neutron-Antineutron Oscillations in Nuclei - High Energy Physics - Phenomenology - Descarga este documento en PDF. Documentación en PDF para descargar gratis. Disponible también para leer online.

Abstract: It is argued that within the correct treatment of analytical properties ofthe transition amplitudes, in particular, the second order pole structure,characteristic for the $n - \bar n$ transition in nuclei, the -infrareddivergences- discussed in some papers, do not appear. Explicit calculation withthe help of diagram technique shows that the neutron-antineutron oscillationsare strongly suppressed within a deuteron, as well as within arbitrary nucleus,in comparison with the oscillations in vacuum.