Kaonium

Kaoniumis anexotic atomconsisting of abound stateof a positively charged and a negatively chargedkaon.Kaonium has not been observed experimentally and is expected to have a short lifetime on the order of 10⁻¹⁸seconds.^[1]^[2]

References

^ Deloff, A. (2003).Fundamentals in Hadronic Atom Theory.World Scientific.Section 10.3.Bibcode:2003fhat.book.....D.ISBN 978-981-238-371-6.
^ Krewald, S.; Lemmer, R. H.; Sassen, F. P. (2004). "Lifetime of kaonium".Physical Review D.69(1): 016003.arXiv:hep-ph/0307288.Bibcode:2004PhRvD..69a6003K.doi:10.1103/PhysRevD.69.016003.S2CID 119336701.

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[1] Deloff, A. (2003).Fundamentals in Hadronic Atom Theory.World Scientific.Section 10.3.Bibcode:2003fhat.book.....D.ISBN 978-981-238-371-6.

[2] Krewald, S.; Lemmer, R. H.; Sassen, F. P. (2004). "Lifetime of kaonium".Physical Review D.69(1): 016003.arXiv:hep-ph/0307288.Bibcode:2004PhRvD..69a6003K.doi:10.1103/PhysRevD.69.016003.S2CID 119336701.

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