Hi, Can someone clarify for me the terms used in the Gamow energy equation. I know mr = reduced mass, c= speed of light etc, but what is puzzling me are the terms Za and Zb. I thought that these were the charges (I have been asked to find the Gamow energy of two protons). My answer booklet gives these values as 1 but I can't see where they get this from. Any help would be most appreciated!