S-wave calculations predict bound and resonant states in trilepton and tetralepton systems made of electrons and muons, including the first muon-containing tetralepton resonances.
Deduction of the quantum unmbers of low-lying states of the (e+e+e-e-) system from symmetry consideration
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abstract
The feature of the low-lying spectrum and a complete set of quantum numbers of the (e+e+e-e-) system have been deduced based on symmetry consideration. The existence of a low odd-parity L=1 excited state with the spins of the two electrons coupled to s1=1 and the two positrons coupled to s2=0 (or s1=0 and s2=1) and a low even-parity L=0 excited state with s1=s2=1 have been predicted. The discussion is generalized to 2-dimensional (e+e+e-e-) systems.
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Trilepton and tetralepton bound and resonant states: the QED counterpart of multiquark states
S-wave calculations predict bound and resonant states in trilepton and tetralepton systems made of electrons and muons, including the first muon-containing tetralepton resonances.