Home › Forums › Hyperfine course › magnetic hyperfine interaction › in free atoms – task 1 › Which J-value corresponds to which orientation? This topic has 0 replies, 1 voice, and was last updated 6 months, 4 weeks ago by fdwit. Viewing 1 post (of 1 total) Author Posts March 9, 2024 at 3:22 pm #5357 fdwitParticipant J=0 means that J=L-S. So this means L and S are parallel and pointing in opposite directions. J=1 means that J and S are perpendicular to eachother. J=2 means that J=L+S so L and S are parallel and point in the same direction. Author Posts Viewing 1 post (of 1 total) You must be logged in to reply to this topic. Log In Username: Password: Keep me signed in Log In