Readers discuss hypothetical ‘tauonium’ atoms

Talk of the tauonium

Scientists propose a hunt for tauonium, a hypothetical variety of atom that would consist of a tau lepton and its antimatter counterpart, an antitau, Emily Conover reported in “Tauonium” (SN: 6/29/24, p. 5).

Reader Hal Heaton asked why tauonium would be classified as an atom, considering it wouldn’t have typical atomic features: electrons and a nucleus of protons and neutrons.