New paper -- "Screening and resonance enhancements of the 2H(d, p)3H reaction yield in metallic environments"
http://iopscience.iop.org/arti…9/0295-5075/113/22001/pdf
ABSTRACT: The 2H(d, p)3H reaction cross-section has been measured for deuteron energies below
25 keV in a deuterized Zr target under improved ultra-high-vacuum conditions and controlled target
surface contamination. The increase of reaction enhancement factors towards lower energies
is much weaker than that determined before and can result not only from the electron screening
effect but also from a suggested 0+ threshold resonance in 4He. The cross-section calculations performed
within the T-matrix approximation enable to estimate a coherent resonance contribution
and explain the observed energy dependence of the enhancement factors. Additionally, indications
for the increase of the screening energies due to impurities at the target surface could be found.
