The role of correlation entropy in nuclear fusion in liquid Lithium, Indium and Mercury

Nuclear fusion cross-sections significantly higher than corresponding theoretical predictions are observed in low-energy experiments with deuterated metal matrix targets and accelerated deuteron beams. In liquid Lithium an additive screening energy potential much higher than in solid Lithium is needed. The two-body correlation entropy term of the liquid metal , used in the evaluation of metal melting entropy, is shown to be responsible of the large liquid-solid difference of $210\,eV$ of the screening energy potential. The spread of the two metals with the highest two-body correlation entropy (In and Hg) is evaluated.