نویسندگان
کلیدواژهها
عنوان مقاله English
نویسندگان English
In this paper, we calculate Hydrogen hyperfine splitting (HFS) at the order a4 by using NRQED as an effective field theory. We also show the leading-order contribution of nuclear size to the energy correction of Hydrogen atom .
کلیدواژهها English
