The Coulomb Barrier

The cross section of the nickel atom is under the conditions of cold fusion is larger than naive calculations would lead you to believe. The reason for this is very simple. The cross section seen by two protons is lower than that seen by one. To figure out the effective cross section one must consider the cross section seen by two, four, and six protons as well as that seen by one. These cross sections are progessively larger, but this is conveniently forgotton by pseudo-critics of cold fusion. The protons are in the range of 6 to 7 Mev. Figure it out for yourself.