Detection of π-μ Coulomb bound states

R. Coombes, R. Flexer, A. Hall, R. Kennelly, J. Kirkby, R. Piccioni, D. Porat, M. Schwartz, R. Spitzer, J. Toraskar, S. Wiesner, B. Budick, J. W. Kast

    Research output: Contribution to journalArticlepeer-review


    We have observed atoms consisting of a pion and a muon produced in the decay KL0→(πμ)atomν. This represents the first observations of an atom composed of two unstable particles and of an atomic decay of an elementary particle.

    Original languageEnglish (US)
    Pages (from-to)249-252
    Number of pages4
    JournalPhysical Review Letters
    Issue number5
    StatePublished - 1976

    ASJC Scopus subject areas

    • General Physics and Astronomy


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