POSITRON SUPERCRITICAL RESONANCES AND SPONTANEOUS POSITRON CREATION IN SLOW COLLISIONS OF HEAVY NUCLEI

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Abstract

We present a theoretical and computational study of positron supercritical resonances in systems consisting of two highly-charged bare nuclei. The resonance positions and widths depending on the internuclear separation are calculated with the help of the complex-scaling generalized pseudospectral method in modified prolate spheroidal coordinates. The results are applied to estimate the probability of spontaneous positron creation in slow U92+–U92+ and Cm96+– Cm96+ collisions.

About the authors

D. A. Telnov

St. Petersburg State University

Email: d.telnov@spbu.ru
St. Petersburg, Russia

N. K. Dulaev

St. Petersburg State University; National Research Center “Kurchatov Institute” – PNPI

St. Petersburg, Russia; Gatchina, Russia

Y. S. Kozhedub

St. Petersburg State University

St. Petersburg, Russia

I. A. Maltsev

St. Petersburg State University

St. Petersburg, Russia

R. V. Popov

St. Petersburg State University; National Research Center “Kurchatov Institute” – PNPI

St. Petersburg, Russia; Gatchina, Russia

I. I. Tupitsyn

St. Petersburg State University

St. Petersburg, Russia

V. M. Shabaev

St. Petersburg State University; National Research Center “Kurchatov Institute” – PNPI

Email: v.shabaev@spbu.ru
St. Petersburg, Russia; Gatchina, Russia

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