Long's research in atomic physics focuses on understanding how the quarks inside of protons and neutrons interact to form atomic nuclei. She has worked on the deuteron structure as well as attempts to detect the first measurement on the quasi-elastic tensor asymmetry A zz. The A zz experiment can provide information about nucleon-nucleon calculations at the relativistic level, as well as provide new experimental constraints on decade-old questions about deuteron wavefunctions. An explanation of the A zz experiment described for a six year old can be found on Long's research page.