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Second bound state of the positronium molecule and biexcitons

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arxiv cond-mat/9802261 v1 pith:IK76Q4H6 submitted 1998-02-25 cond-mat.mes-hall physics.atom-phphysics.chem-ph

K. Varga , J. Usukura , Y. Suzuki This is my paper · ORCID
classification cond-mat.mes-hallphysics.atom-phphysics.chem-ph
keywords stateboundbiexcitonsmoleculenegativepositroniumsecondangular
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A new, hitherto unknown bound state of the positronium molecule, with orbital angular momentum L=1 and negative parity is reported. This state is stable against autodissociation even if the masses of the positive and negative charges are not equal. The existence of a similar state in two-dimension has also been investigated. The fact that the biexcitons have a second bound state may help the better understanding of their binding mechanism.

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  1. Trilepton and tetralepton bound and resonant states: the QED counterpart of multiquark states

    hep-ph 2025-01 conditional novelty 5.0 of 10

    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.

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