Influence of crystal structures on electron screening

¹ Jožef Stefan Institute, Ljubljana, Slovenia
² Jožef Stefan International Postgraduate School, Ljubljana, Slovenia
³ University of Banja Luka, Faculty of Mechanical Engineering, Banja Luka, Bosnia and Herzegovina
⁴ INFN-Laboratori Nazionali del Sud, Catania, Italy
⁵ Dipartimento di Fisica e Astronomia "E. Majorana", University of Catania, Catania, Italy
⁶ Centro di Fisica Nucleare e Struttura della Materia, University of Catania, Catania, Italy
⁷ Max Planck Institute for Plasma Physics, Garching, Germany
⁸ Rudjer Boškovi´c Institute, Zagreb, Croatia

^* e-mail: aleksandra.cvetinovic@ijs.si

Published online: 3 February 2023

Abstract

For nucleosynthesis calculations, precise reaction rates should be known at energies within the Gamow window. At these energies, electron screening cannot be neglected. Despite the significance of the effect, a huge disagreement between experimental data and theoretical predictions is still not understood. In order to address to this problem, we investigated the dependence of the electron screening potential on the target host lattice structure by measuring the rate of the ²H(¹⁹F,p)²⁰F reaction in zirconium, titanium and palladium targets containing deuterium.