Hi, I am currently an undergraduate student and I am writing my undergraduate research paper right now. The thesis is about searching for heavy Majorana type neutrinos. While writing the paper, I really need some 'right word' but I can't find it so let me explain it here, and it would be very grateful if someone tells me what the right word is. Let's say there is a channel whose final objects have 3 leptons (and other stuffs too). We usually call the lepton with the biggest transverse-momentum 'leading lepton'. And the second biggest 'sub-leading lepton'. However, I can't find the word for the smallest transverse-momentum. Can anyone tell me a proper term for the lepton with smallest transverse-momentum? Maybe... following lepton? or... sub-sub-leading lepton (since it has the smallest but also the third biggest momentum)? Doesn't the right term exist??