出版社：SISSA, Scuola Internazionale Superiore di Studi Avanzati
摘要：Recently, the electron screening effect in metallic environments has been experimentally investigated
by many groups in low-energy nuclear reactions. The similar effect is expected in radioactive
decays where the decay constant should be dependent on the valence electron density of the
host material. Since metals represents a very good model for dense astrophysical plasmas, comparison
of both effects can deliver new information about mechanism of the enhanced electron
screening and consequences for nuclear processes taking place in stellar interior.
Here, we present a new experimental investigation of screening effect in the d +d nuclear reactions
under UHV conditions. Based on those experimental results a host material dependence of
the alpha decay probability has been predicted.
